System for transmitting quadruple-encoded radio signals

FIELD: radio communications.

SUBSTANCE: system has transmitting portion, which contains clock pulse generator 1, first and second D-code generators 21-22, first and second generator of double frequency manipulation 31-32, adder 4, modulator 5, frequencies synthesizer 6, pseudo-random numbers generator 7. said portion is connected through broadcast line 8 to receiving portion, which has demodulator 9, frequencies synthesizer 10, pseudo-random numbers 11, signals selector 12, clock pulses generator 13, block for selecting additional series 14, block for folding additional series 15, solving block 16. new set of significant features provides for possible implementation of distributed receipt with code structure of specific orthogonal quadruple-encoded series without expansion of available frequency resource.

EFFECT: broader functional capabilities, higher trustworthiness, higher efficiency, higher interference resistance.

2 cl, 5 dwg

 

The invention relates to communication technology and can be used in synchronous and asynchronous communication systems as a system of discrete information transmission using the propagation of electromagnetic waves in communication channels with fading and random signal parameters (phase, amplitude and polarisusa) meter and decameter range of waves with pseudorandom change the operating frequency (frequency hopping) when exposed to intentional interference.

A known system for RF patent No. 2188516, IPC7H 04 L 27/26, Appl. 21.05.01, publ. 27.08.02, bull. No. 24, consists of a transmitting part which contains the clock, driver D-codes, shaper signals of two frequency-shift keying, connected through tract distribution to the receiving portion, which contains a selector signal, the block allocation of additional sequences, two-channel coherent filter, myCitadel and decisive block and uses to transmit the Quaternary-coded sequences twice the frequency manipulation.

The disadvantages of this system is low immunity when exposed to intentional interference and relatively low reliability in the radio channel fading and random signal parameters (phase, amplitude and polarization) meter and decameter range is in waves, that limits the area of application of this system.

The known system described in the article by Roland Wilson and John Richter "Generation and Performance of Quadraphase Welti Codes for Radar and Synchronization of Coherent and Differentially Coherent PSK" (IEEE Transactions on Communications, vol. COM-27, NO.9, September 1979, p.1296-1301), consists of the transferor, which contains the clock, driver D-codes, a phase modulator, a frequency generator, a switch and a phase shifter connected through the communication channel with the reception side, which contains the phase demodulators, filters lower frequencies, consistent filter Welty, myCitadel, the deciding unit, and uses to transmit the Quaternary-coded sequences relative phase manipulation.

The disadvantages of this system is low immunity when exposed to intentional interference and relatively low reliability in the radio channel fading and random signal parameters (phase, amplitude and polarization) meter and decameter of wavelengths, which limits the area of application of this system.

The closest in technical essence and function to the requested system analogue (prototype) of the transmission system is the Quaternary-coded radio signals, see RF Patent №2208915, IPC7N 04 K 3/00, Appl. 24.11.02, publ. 20.07.07, bull. No. 20. Known system content is t transmitting part, consisting of a clock pulse shaper D-codes, shaper signals of two frequency-shift keying, modulator, frequency synthesizer, a random number generator, tract distribution, the receiving part consisting of a demodulator, frequency synthesizer, a random number generator, the selector signal generator of clock pulses, the block allocation of additional sequences, the channel matched filter, myCitadel and casting of the block.

The transmitting part comprises a generator of clock pulses, the output of which is connected to the shaper D-codes, shaper signals of two frequency-shift keying, the first and second signal inputs of which are connected respectively to the outputs of the clock and shaper D-codes, the generator output clock pulses is connected to the clock inputs of the frequency synthesizer and the pseudo-random number generator, n-control output of which, where n≥2 - an integer that is connected to the corresponding n control inputs of the frequency synthesizer, the output of which is connected to the modulation input of the modulator, the information input of which is connected to the output of the shaper signal twice frequency-shift keying, the output of the modulator is the output of the transmitting part of the system and is connected via a channel to disseminate the program to the input of the receiving part of the system, which is an information demodulator input, the pseudo-random number generator, n-control output which is connected to the corresponding n control inputs of the frequency synthesizer, the output of which is connected to the modulating input of the demodulator, the output of which is connected to the input of the selector signal, the output clock connected to clock inputs of the frequency synthesizer and the pseudo-random number generator, the selector signal, the first, second, third and fourth information, the outputs of which are connected to the corresponding first, second, third and fourth information input unit allocation of additional sequences, the first and second information outputs of which are connected respectively to the first and second information inputs dual channel matched filter, the first and second information outputs of which are connected respectively to the first and second information inputs myCitadel, the output of which is connected to the input of the decision making unit whose output is the output of the receiving part of the system.

Transmission system the Quaternary-coded radio signals prototype uses to transmit the Quaternary-coded sequence twice the frequency manipulation with frequency hopping, where the odd-numbered elements of the Quaternary-coded consistent is Telenesti transmitted at frequencies f 3+fPoftor f4+fPoftand even elements in the Quaternary-coded sequence is transmitted at frequencies f1+ fPoftor f2+fPofti.e. the nominal frequency determines the number of additional sequences in the Quaternary-coded radio signal.

The disadvantages of the prototype is a low immunity when exposed to intentional interference in the radio channel fading and random signal parameters (phase, amplitude and polarization) meter and decameter of wavelengths, which limits the area of application of this system, because the system transmits one Quaternary-coded sequence, the amplitude of which at the point of admission is subject to fading.

The objective of the invention is to develop a transmission system Quaternary-coded radio signals, ensuring the achievement of the technical result consists in the expansion of the scope through the use of receive diversity on the code structure orthogonal Quaternary-coded sequences with frequency hopping without extension of frequency resources, improve the noise immunity and reliability when exposed to intentional interference in the communication channels with fading and random parameters of the signal (the phase is, amplitude and polarization) meter and decameter range of waves for systems with code multiplexing of signals and systems with multiple access.

To achieve a technical result in the known transmission system Quaternary-coded radio signal containing the transmission of the clock pulses, the output of which is connected to the input of the first driver D-codes, to the clock inputs of the frequency synthesizer and the pseudo-random number generator. The first driver signal twice the frequency of manipulation, quantum and information inputs which are respectively connected to the outputs of the clock pulses and the first driver D-code, n-control output pseudo-random number generator, where n≥2 - an integer that is connected to the corresponding n control inputs of the frequency synthesizer, the output of which is connected to the modulation input of the modulator. The output of the modulator is the output of the transmitting part of the system and is connected through tract distribution to the input of the receiving part of the system. Receiving portion of the system includes a demodulator, an information input which is the input receiving part of the system, and the output of the demodulator is connected to the input selector signals. Clock generator pulses, the output of which is connected to the clock inputs of the frequency synthesizer and generator pseudolocal the different numbers, n-control output which is connected to the corresponding n control inputs of the frequency synthesizer, the output of which is connected to the modulating input of the demodulator. The first, second, third and fourth information outputs of the selector signals respectively connected to the first, second, third and fourth information input unit allocation of additional sequences, the deciding unit whose output is the output of the receiving part of the system. Additionally, in the transmitting part of the system entered the second shaper D-codes, the second driver signals of two frequency-shift keying and the adder, the output of the generator of clock pulses connected to the input of the second driver D-codes, the second driver signals of two frequency-shift keying, clock and information inputs which are respectively connected to the outputs of the clock pulses and the second shaper D-codes, the output of the first and second driver signals of two frequency-shift keying respectively connected to the first and second information inputs of the adder, the output of which is connected to the information input of the modulator. The receiving part of the system additionally introduced block convolution of additional sequences, the first and second information output unit allocating more recent is valnontey respectively connected to the first and second information inputs of block convolution additional sequences, the output of which is connected to the input of the decision making unit.

Block convolution additional sequence consists of the first and second channel matched filter, the first and second vicites and adder. The first information input of the first dual channel matched filter connected to the first information input of the second dual channel matched filter and is the first information input unit additional convolution of sequences. The second information input of the first dual channel matched filter connected to the second information input of the second dual channel matched filter and is the second information input unit additional convolution of sequences. The first and second information outputs of the first dual channel matched filter respectively connected to the first and second information inputs of the first myCitadel. The first and second information outputs of the second dual channel matched filter respectively connected to the first and second information inputs of the second myCitadel. The outputs of the first and second vicites respectively connected to the first and second information inputs of the adder, the output of which is the output of the block verification additional sequences.

Thanks to the new GSS is upnote essential features due to the introduction of the second shaper D-codes, the second driver signals of two frequency-shift keying, adder and block convolution additional sequences allows the use of receive diversity on the code structure orthogonal Quaternary-coded sequences with frequency hopping without expanding the allocated frequency resource. This provides the opportunity to expand the scope of the claimed system, in particular to improve the noise immunity and reliability when exposed to intentional interference in the communication channels with fading and random signal parameters (phase, amplitude and polarization) meter and decameter range of waves for systems with code multiplexing of signals and systems with multiple access.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical information sources, and identify sources that contain information about the equivalents of the claimed invention, has allowed to establish that the applicant had not discovered similar, characterized by signs, identical with all the essential features of the claimed invention. Select from a list of identified unique prototype, as the most similar in essential features analogue, has identified a set of essential towards perceived by the applicant technical the WMD result of the distinctive features in the claimed device, set forth in the claims. Therefore, the claimed invention meets the criterion of "novelty".

To check compliance with the claimed invention, the criterion of "inventive step", the applicant conducted an additional search of the known solutions to identify signs that match the distinctive features of the prototype of the characteristics of the claimed device. The search results showed that the claimed invention not apparent to the expert in the obvious way from the prior art, as defined by the applicant. Not identified the impact of changes under the essential features of the claimed invention, to achieve a technical result. In particular, the claimed invention does not provide the following transformations: addition of known means of any known part attached to it according to certain rules, to achieve a technical result, in respect of which it is the effect of such additions; the replacement of any part of the other known means known part to achieve a technical result, in respect of which it is the effect of such a change; the exclusion of any part of the funds while the exclusion of its functions and the achievement of a result of such exclusion; Uwe is ikenie identical elements to enhance the technical result due to the presence in the vehicle is of such elements; the execution of a known drug or part of a known material to achieve a technical result due to the known properties of the material; the creation of tools, consisting of well-known parts, the choice of which and the relationship between them is carried out on the basis of known rules, recommendations and achievable technical result is due only to the known properties of the parts of this object and the relationships between them; change quantitative attributes or relations of signs, if known fact of the influence of each on the technical result and the new values of the signs or their relationship could be obtained from the known dependencies. Therefore, the claimed invention meets the criterion of "inventive step".

The invention is illustrated graphic materials showing: 1 - structural diagram of the transmission system the Quaternary-coded radio signals; figure 2 is a plot illustrating the principle of the formation of the Quaternary-coded radio signals; figure 3 is a plot illustrating the principle of generating additional sequences; 4 is a structural diagram of block convolution additional sequences; 5 is a plot illustrating the principle of convolution additional sequences.

The intelligence is, confirming the ability of the invention to provide the above technical result are as follows.

Transmission system the Quaternary-coded radio signals presented in figure 1, consists of a transmitting part and the receiving part. The transmitting part comprises a generator of clock pulses 1, the first and second shaper D-code 21-22first and second driver signals of two frequency-shift keying 31-32the adder 4, a modulator 5, the frequency synthesizer 6, the pseudo-random number generator 7. Output clock 1 is connected to the inputs of the first and second shaper D codes 21-22to the clock inputs of the first and second driver signals of two frequency-shift keying 31-32. The outputs of the first and second shaper D codes 21-22respectively connected to information inputs of the first and second driver signals of two frequency-shift keying 31-32the outputs are respectively connected to the first and second information inputs of the adder 4. The output of the adder 4 is connected to the information input of the modulator 5. The output of clock 1 is connected to the clock inputs of the frequency synthesizer 6 and the pseudo-random number generator 7, the n-control output which g is e n≥ 2 is a whole number that is connected to the corresponding n control inputs of the frequency synthesizer 6. The output of the frequency synthesizer 6 is connected to the modulation input of the modulator 5, the output of which is the output of the transmitting part. The output of the transmitting part through tract distribution 8 connected to the input of the receiving part. The reception part includes a demodulator 9, the frequency synthesizer 10, the pseudo-random number generator 11, the selector signals 12, clock 13, the block allocation of additional sequences 14, block convolution additional sequences 15, the deciding unit 16. The information input of the demodulator 9 is the entrance of the receiving part, and the output of the demodulator is connected to the input of the selector signals 12. The generator output clock pulses 13 is connected to the clock inputs of the frequency synthesizer 10 and the pseudo-random number generator 11, the n-control output which is connected to the corresponding n control inputs of the frequency synthesizer 10. The output of the frequency synthesizer 10 is connected to the modulating input of the demodulator 9. The first, second, third and fourth information outputs of the selector signals 12 are respectively connected to the first, second, third and fourth information input unit allocation of additional sequences 14, the first and second information outputs of which are respectively connected to pen the WMD and second information inputs of block convolution additional sequences 15. The output of block convolution additional sequences 15 is connected to the input of the decision making unit 16 whose output is the output of the receiving part of the system.

Clocks 1 in the transmitting part and 13 receiving parts are identical and are designed to generate pulses of a certain duration with the required frequency fTg=In, where In is the transmission rate of a sequence of elements of D code (cruising speed). They can be implemented, as described in the book Limportance, Utils, Scholae "Digital devices on integrated circuits in communication technology" (M.: Communication, 1979, p.72-76, RIS).

Shapers D codes 21-22intended for forming a code sequence (D-code) with period N=2kwhere k≥2 is an integer. They can be implemented, as described in A.S. No. 1177910 the USSR, IPC6H 03 M 5/00, Appl. 18.04.84, publ. 07.09.85, A.S. No. 1805550 the USSR, IPC6H 04 L 14/00, Appl. 07.02.91, publ. 30.03.93 or article Roland Wilson and John Richter "Generation and Performance of Quadraphase Welti Codes for Radar and Synchronization of Coherent and Differentially Coherent PSK" (IEEE Transactions on Communications, vol. COM-27, NO.9, September 1979, p.1296-1301, figure 1).

Shapers signals of two frequency-shift keying 31-32are used to form the Quaternary-coded signal. They can be implemented, as described in the book Nelepov, Engelen, Opink non-linear electronic device. Part 1 (Moscow: Voenizdat, 1982, s-344, RIS).

The adder 4 is designed to unite the Quaternary-coded radio signals. It can be implemented as described in the book Utica, Klenk "Semiconductor circuit" (M.: Mir, 1982, p.137, RIS).

The modulator 5 is designed for pseudo-random adjustment of the operating frequency within the allocated frequency resource Δf=fmax-fminfmax- the maximum value of the selected frequency range; fmin- the minimum value of the selected frequency range. It can be implemented as described in the book Nelepov, Engelen, Opink "non-linear electronic device. Part 1 (Moscow: Voenizdat, 1982, s-137, RIS).

Frequency synthesizers 6 in the transmitting part and 10 receiving parts are identical and are used to form the pseudo-random harmonic oscillations with a nominal frequency ΔfPoft=4lfTgwhere l=1, 2, ..., L, L=2n-1 is the maximum value of the pseudo-random number in decimal, n≥2 - number of managed inputs of the frequency synthesizer. They can be implemented, as described in the patent of Russian Federation №2208915, IPC7N 04 To 3/00, Appl. 04.11.02, publ. 20.07.03, bull. No. 20.

The pseudo-random number generator 7 in the transmitter part and 11 receiving parts are identical and are used to form the pseudo-random numbers l=1, 2, ..., L in docn the m-calculus, where the maximum pseudo-random number L depends on the allocated frequency resource Δf and is defined in decimal form by the following expressionwhere ΔFc=4V - effective width of the spectrum of the Quaternary-coded signal;- smaller integer. They can be implemented, as described in the book Utica, Klenk "Semiconductor circuit" (M.: Mir, 1982, s-359, RIS).

Tract distribution 8 is designed to distribute the Quaternary-coded signal. The basis of tract distribution is one or the other environment in which the signal propagates, for example, electrical connection is cable or waveguide, in communications systems - an area of space in which propagated electromagnetic wave.

The demodulator 9 is designed to eliminate pseudo-random adjustment of the operating frequency within the allocated frequency resource. It can be implemented as described in the book Niltepec, Engelen, Opink "non-linear electronic device. Part 1" (M: Voenizdat, 1982, s-137, RIS).

The selector signal 12 is intended for breeding Quaternary-coded signal. It can be implemented as described in the patent of Russian Federation №2188516, IPC7H 04 L 27/26, Appl. 21.05.01, publ. 27.08.02, bull. No. 24.

The block is adelene additional sequences 14 is designed to highlight the first additional sequence of the odd elements of the quadruple-encoded sequence (highlighting elements α that βand allocating the second additional sequence of even-numbered elements of the quadruple-encoded sequence (highlighting elements γ, δ). It can be implemented as described in the patent of Russian Federation №2188516, IPC7H 04 L 27/26, Appl. 21.05.01, publ. 27.08.02, bull. No. 24.

Block convolution additional sequences 15, scheme is presented in figure 4, is designed for verification of additional sequences to the duration of one element of the Quaternary-coded sequence and summing them, it consists of the first and second channel matched filter 15.11-15.12the first and second vicites 15.21-15.22and adder 15.3. The first information input of the first dual channel matched filter 15.11connected to the first information input of the second dual channel matched filter 15.12and is the first information input unit convolution additional sequences 15. The second information input of the first dual channel matched filter 15.11connected to the second information input of the second dual channel matched filter 15.12and is the second information input unit convolution additional sequences 15. The first and second information outputs of the first two channel according to the cell filter 15.1 1respectively connected to the first and second information inputs of the first vicites 15.21. The first and second information outputs of the second dual channel matched filter 15.12respectively connected to the first and second information inputs of the second vicites 15.22. The outputs of the first and second vicites 15.21-15.22respectively connected to the first and second information inputs of the adder 15.3 whose output is the output of unit verification additional sequences 15.

Dual agreed filters 15.11-15.12intended for additional convolution of the sequences to the duration of one element of the Quaternary-coded sequence. They can be implemented, as described in A.S. No. 1721837 the USSR, IPC6H 04 L 27/26, Appl. 08.01.90, publ. 23.03.92.

MyCitadel 15.21-15.22designed for subtracting negative pulse voltage applied to its second input of the positive voltage pulse received at its first input. They can be implemented, as described in the book Utica, Klenk "Semiconductor circuit" (M.: Mir, 1982, p.137-138, RIS).

The adder 15.3 designed for combining two folded Quaternary-coded sequences. It can be implemented as described in the Nigerian Utica, Klenk "Semiconductor circuit" (M.: Mir, 1982, p.137, RIS).

Crucial unit 16 is designed for a decision about the transmitted summed orthogonal Quaternary-coded sequences. It can be implemented on the basis of the comparator, as described in the book Utica, Klenk "Semiconductor circuit" (M.: Mir, 1982, p.76-77, RIS).

Transmission system the Quaternary-coded radio signals presented in figure 1, works as follows.

When the system is switched on in the transmit side clock 1 frequency fTggenerates a sequence of clock pulses with a duty cycle equal to two presented on the plots figa. Each element of this sequence with a high level of "1" will be considered odd, and with a low level "0" is even. The sequence of clock pulses (figa) with clock pulses 1 are simultaneously fed to the clock inputs of the first and second driver signals of two frequency-shift keying 31-32, frequency synthesizer 6 and the pseudo-random number generator 7 and to the input of the first and second shaper D codes 21-22.

In the first and second shaper D codes 21-22to clock pulses (figa) is formed and driven by the implementation of appropriate source chetverik what about the encoded sequence with period N=2 k(where N is the number of elements in the Quaternary-coded sequence; k≥2 integer), without lateral emissions in the aperiodic autocorrelation function (ACF), for example, D-code, code Welty or E-code. In addition, in the first and second shaper D codes 21-22must be orthogonal Quaternary-coded sequences that do not have lateral emission of intercorrelation functions (MCFs):

where- time analysis MCFs; i - number of the Quaternary-coded sequence (D-code), which is formed in the first driver D-codes 21, i=1, 2, ..., K; j is the number of Quaternary-coded sequence (D-code) generated in the second shaper D codes 22, j=1, 2, ..., K; K - number of the Quaternary-coded sequences (D-codes) K=N.

For example, if K=S, the total number of Quaternary-coded sequences (D-codes) are presented in the form of a matrix

The room i first Quaternary-coded sequence generated in the first shaper D codes 21associated with the number j of the second Quaternary-coded sequence generated by the second imaging unit D codes 22the following relationship:

As a note the RA plots figb shows the implementation of the first cycle i=1 Quaternary-coded sequence α γαδαγβγformed in the first driver D-codes 21and on plots figv shown driven by the implementation of the second j=5 Quaternary-coded sequence αγαδβδαδformed in the second shaper D codes 22when the number of elements N=8. Formed in the Quaternary-coded sequences have the following elements: α, β, γ, δwhere α, β transmit odd elements D-code, and γ, δ - even the elements of the D-code.

From the output of the first driver D-codes 21formed (figb) Quaternary-encoded sequence is supplied to the information input of the first driver signal twice the frequency manipulation 31and with the output of the second shaper D codes 22formed (pigv) Quaternary-encoded sequence is supplied to the information input of the second driver signal twice the frequency manipulation 32. To the clock input of the first and second driver signals of two frequency-shift keying 31-32receive a sequence of clock pulses (figa) with frequency fTgfrom the output of the clock 1.

In the first and second driver signals of two frequency-shift keying 31-32suitable is I (figb, C) the Quaternary-encoded sequence is converted into the Quaternary-coded signal. The change of high-frequency oscillations of the Quaternary-coded radio signals generated in the first and second driver signals twice manipulation 31-32can be described, as shown in the table

The elements of the Quaternary-coded sequenceThe clock input unit 31(32) (with unit 1)The information input unit 31(32) (block 21(22))The frequency of the Quaternary-coded signal
δ00f1
γ01f2
β10f3
α11f4

where

f1<f2<f3<f4or f1>f2>f3>f4;

Δf1=|f1-f2|, Δf2=|f2-f3|, Δf3=|f3-f4| frequency shift between adjacent frequencies;

Δf1=xB, Δf1=mB Δf1=zB;

x=1, 2, ... is an integer the number;

m=1, 2, ... is an integer;

z=1, 2, ... is an integer.

Plot formed by the first and second Quaternary-coded radio signals presented on Figg, d, respectively.

The Quaternary-coded signal generated in the first shaper double frequency-shift keying 31(high) is supplied to the first information input of the adder 4, and the Quaternary-coded signal generated in the second shaper double frequency-shift keying 32(pigd) is supplied to the second information input of the adder 4.

In the adder 4 is the Association of the Quaternary-coded radio signals. United Quaternary-coded signal from the output of the adder 4 is supplied to the information input of the modulator 5.

To the clock input of the pseudo-random number generator 7 receives a sequence of clock pulses (figa) with frequency fTgwith the clock 1. In the pseudo-random number generator 7, the sequence of clock pulses (figa) is converted to a pseudo-random sequence, which is supplied to the n-control outputs pseudo-random number generator 6 with a time shift of one clock cycle at each output of the pseudo-random number generator 7 in binary form. The pseudo-random number generator 7 has a width L=2n-1 according to the t-allocated frequency resource Δ f.

A pseudo-random sequence in binary form with n control outputs, where n≥2 - number of outputs of the pseudorandom number generator 7, respectively supplied to the n-control input of the frequency synthesizer 7, where n≥2 - the number of inputs of the frequency synthesizer 6. To the clock input of the synthesizer often 6 receives a sequence of clock pulses (figa) with frequency fTgfrom the output of the clock 1.

The generated pseudo-random harmonic oscillation with a par ΔfPoftis supplied to the modulating input of the modulator 5, which is the output of the transmitting part of the system. At the output of the modulator 5 when x=m=z=1 and Δf1=Δf2=Δf3formed United Quaternary-coded signal with frequency hopping within the allocated frequency resource Δf according to the following rule:

where fn=fmin- frequency carrier wave signal; Uwiththe amplitude of the signal.

United Quaternary-coded signal generated on the transmit side, enter the path of propagation 8, elements α, β, γ, δ United Quaternary-coded signal fulfil the orthogonality condition on the frequency.

Through tract distribution 8, United Quaternary-coding for the cell signal is supplied to the information input of the demodulator 9, which is the entrance of the receiving part of the system.

Clock 13, the pseudo-random number generator 11 and the frequency synthesizer 10 of the receiving part of the system work and form a pseudo-random harmonic oscillation with a par ΔfPoftsimilarly, the transmission part of the system. Consequently, at the output of the frequency synthesizer 10 is formed pseudo-random harmonic oscillation with a par ΔfPoftcoming to the modulating input of the demodulator 9.

In the demodulator 9 due to the frequency synthesizer 10 is controlled by pseudo-random number generator 11 races of the operating frequency are eliminated ΔfPoftin the information symbols of the United Quaternary-coded signal are transferred to the initial selected frequency.

Adopted in the receiving part of the unified Quaternary-coded signal to the input of the selector signal 12, which performs frequency selection strictly defined high-frequency component of the combined Quaternary-coded signal. On the first, second, third and fourth information outputs of the selector signals 12, respectively, are formed first, second, third and fourth high-frequency radio signals with the following values:

Plot set up shop data the bathrooms first, second, third and fourth high-frequency radio signals presented on figa, b, C, d respectively. The first, second, third and fourth high-frequency radio signals (figa, b, C, d) with appropriate information outputs of the selector signals 12 respectively receive the first, second, third and fourth information unit allocation of additional sequences 14.

In the block allocation of additional sequences 14 is the separation of the envelope from the first, second, third and fourth high frequency signals (figa, b, C, d) and the elimination of load-bearing high-frequency oscillations. On the first and second information output unit allocation of additional sequences 14 respectively are formed first and second additional sequence. Plot formed by the first and second complementary sequences presented on Figg, W respectively. The first additional sequence (pigd) is formed from the odd-numbered elements of the quadruple-encoded sequence (highlighting elements α, β), and the second additional sequence (figs) is formed from the even-numbered elements of the quadruple-encoded sequence (highlighting elements γ, δ). Formed first and second additional consequences of the successive (figd, W) with appropriate information output unit allocation of additional sequences 14 respectively receive the first and second information input unit verification additional sequences 15.

Block verification additional 15 sequences are presented in figure 4 operates as follows. The first additional sequence (pigd) is supplied to the first information input of the first and second channel matched filter 15.11-15.12the second additional sequence (figs) is supplied to the second information input of the first and second channel matched filter 15.11-15.12. The first two-channel coherent filter 15.11configured on αγαδαγβγ Quaternary-coded sequence, the second two-channel coherent filter 15.12configured αγαδβδαδ Quaternary-coded sequence.

In the first dual consistent filter 15.11the first and second additional sequence (figd, W) collapses to the duration of one element of the Quaternary-coded sequence, and the voltage becomes larger in the 2k-1time element Quaternary-coded sequence. The plot collapsed the x first and second complementary sequences presented on figa, b, respectively. Folded first and second additional sequence (figa, b) with appropriate information outputs of the first channel matched filter 15.11respectively received in the first and second information inputs of the first vicites 15.21.

In the first myCitadel 15.21is subtracting a negative pulse (figb) voltage 2k-1from the second information input of the positive pulse (figa) voltage 2k-1arriving at his first entrance. Therefore, the output of the first vicites 15.21to generate a first pulse (i=1) folded Quaternary-coded sequence voltage in the 2ktimes the amplitude element of the Quaternary-coded sequence. The plot collapsed first (i=1) Quaternary-coded sequence presented on figv.

In the second dual a consistent filter 15.12in the second myCitadel 15.22convolution of the first and second complementary sequences (figd, W) and pulse shaping of the collapsed second (j=5) Quaternary-coded sequence is similar. The plot collapsed the second (j=5) Quaternary-coded sequence presented on Figg

As a result, implementation through the Xia independent convolution of two (the first (i=1) and the second (j=5)) Quaternary-coded sequences (codes Welty or E-codes), characterized in that they have no side emissions in aperiodic ACF and MCFs.

The first folded Quaternary-encoded sequence (pigv) with the release of their first vicites 15.21goes to the first information input of the adder 15.3, and the second folded Quaternary-encoded sequence (high) from the output of the second vicites 15.22supplied to the second information input of the adder 15.3. In the adder is the sum of two (the first (i=1) and the second (j=5)) minimized the Quaternary-coded sequences (FIGU, g). At the output of the adder 15.3 to generate a pulse with a voltage of 2k+1times the amplitude element of the Quaternary-coded sequence. Plot the summed value of the first (i=1) and the second (j=5) minimized the Quaternary-coded sequences presented on Figg. The generated pulse (figd) from the output of the adder 15.3 fed to the input of the decision making unit 16.

In the final unit 16 decides transferred summed (first (i=1) and the second (j=5)) orthogonal Quaternary-coded sequence. Thus, the proposed transmission system Quaternary-coded radio signals provides a wider scope in that it increases the noise immunity and reliability when exposed to intentional interference channels with the ides fading and random signal parameters (phase, amplitude and polarization) meter and decameter of wavelengths through the use of receive diversity on the code structure orthogonal Quaternary-coded sequences with frequency hopping without expanding the allocated frequency resource for systems with code multiplexing of signals and systems with multiple access.

The above data confirm that the implementation of the use of the claimed device the following cumulative conditions:

the tool embodying the claimed device in its implementation, is intended for use in synchronous and asynchronous communication systems as a system of discrete information transmission;

for the claimed device, as it is characterized in the claims, confirmed the possibility of its implementation using the steps described in the application or known before the priority date tools and methods;

the tool embodying the claimed invention in its implementation, is able to achieve perceived by the applicant of the technical result.

Thus, the claimed invention meets the criterion of "industrial applicability".

1. Transmission system the Quaternary-coded radio signal containing the transmission of the clock pulses, the output of which is connected to a first input which the user D-codes, to the clock inputs of the frequency synthesizer and the pseudo-random number generator, the first driver signal twice the frequency of manipulation, quantum and information inputs which are respectively connected to the outputs of the clock pulses and the first driver D-code, n-control output pseudo-random number generator, where n≥2 - an integer that is connected to the corresponding n control inputs of the frequency synthesizer, the output of which is connected to the modulation input of the modulator, the modulator output is the output of the transmitting part of the system and is connected through tract distribution to the input of the receiving part of the system, the receiving portion of the system includes a demodulator, an information input an input receiving part of the system, and the output of the demodulator is connected to the input of the selector signal, the clock generator pulses, the output of which is connected to the clock inputs of the frequency synthesizer and the pseudo-random number generator, n-control output which is connected to the corresponding n control inputs of the frequency synthesizer, the output of which is connected to the modulating input of the demodulator, the first, second, third and fourth information outputs of the selector signals respectively connected to the first, second, third and fourth information input unit allocation of additional sequence is of linota, crucial unit whose output is the output of the receiving part of the system, characterized in that the transmitting part of the system additionally introduced the second shaper D-codes, the second driver signals of two frequency-shift keying and the adder, the output of the generator of clock pulses connected to the input of the second driver D-codes, the second driver signals of two frequency-shift keying, clock and information inputs which are respectively connected to the outputs of the clock pulses and the second shaper D-codes, the outputs of the first and second driver signals of two frequency-shift keying respectively connected to the first and second information inputs of the adder, the output of which is connected to the information input modulator, the receiving part of the system additionally introduced block convolution of additional sequences, the first and second information outputs of the block allocation of additional sequences respectively connected to the first and second information inputs of block convolution of additional sequences, the output of which is connected to the input of the decision making unit.

2. The system according to claim 1, characterized in that the block convolution additional sequence consists of the first and second dual channel matched filter, the first and Vtorov is vicites and adder, the first information input of the first dual channel matched filter connected to the first information input of the second dual channel matched filter and is the first information input unit convolution additional sequences, and the second information input of the first dual channel matched filter connected to the second information input of the second dual channel matched filter and is the second information input unit convolution of additional sequences, the first and second information outputs of the first dual channel matched filter respectively connected to the first and second information inputs of the first myCitadel, and the first and second information outputs of the second dual channel matched filter respectively connected to the first and second information inputs of the second myCitadel, the outputs of the first and second respectively vicites connected to the first and second information inputs of the adder, the output of which is the output of the block verification additional sequences.



 

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