Generator of broadband frequency-modulated signal. RU patent 2342780.
 Tracing frequency with use of interior and exterior contours / 2342779Methods of tracing frequency with use of the interior/exterior contour, providing stability and demanded performances of convergence of contours are offered. One aspect of the invention concerns restrictions of participation of any interior contour as tracing of an exterior contour for prevention of domination of any builder of an accepted signal over an exterior contour. Other aspect of the invention concerns regulations of velocity of change of tracing of an exterior contour for maintenance of stability of interior and exterior contours. |
 System and method for transmission of pictorial data to system of half-duplex mode / 2342778Essence of the invention lies in the following: prestressly certain gang of graphic representations is maintained in the wireless device and when the user presses the button of a half-duplex mode on the wireless device, the wireless device maps the list of prestressly certain images to the user for a select. After the user will choose the image, the wireless device transmits an image code, associated with the chosen image, to a server for translation to each wireless device in communication group of a half-duplex mode. When the accepting wireless device accepts an image code, it takes the image corresponding to a code of the image, from prestressly certain gang and maps this image to the user of the wireless device. |
 Estimate of noise and channel with use of coefficients of expansion of small length / 2342777Invention concerns wireless communication, namely, to improvement of estimate of noise. Noise measurings are carried out during a part of one continuance of the longest figure of an orthogonal code. The processor (520) guidances identify an unoccupied code with small coefficient of expansion. The device (512) squeezings measures energy of a figure on the basis of an unoccupied code, and the device (516) estimates of noise shapes estimates of noise on the basis of the measured energies of figures. |
 Device of inhibition of noises in am signal using neutralisation method / 2342776Offered device concerns field of radio engineering and can be used in communication systems with narrow-band peak-modulated (AM) signals and broadband noises. Device of inhibition of noises neutralisation method contains three band-pass filters, two adders, two rectifiers, the shaper of COS function, subtractor, divider and two detectors in the peak-modulated signal. |
 Narrow-band radio set / 2342775Narrow-band radio intake contains the mixer, intermediate-frequency amplifier, heterodyne, n the identical parallelly joined chains, each of which contains the narrow-band filter, the peak detector, the integrator and an electronic key, the guidance block, (n + 1)th integrator and differential amplifier. |
 Method of transmission of telemechanical information from several control points on blanket physical communication channel / 2342774Invention concerns transmitting systems and can be used for transmission of the telemechanical information from several geographically remote control points on a blanket communication channel. The essence of the method lies in carrying out the frequency partitioning of all frequency band oozed for transmission into subchannels, spot necessary throughput capacity of each of subchannels in share relations, erect a rough transmission band of each subchannel taking into account a bandwidth of all channel and a share of each of subchannels, choose filters on the basis of prestressly erected given filters of the upper and inferior frequencies, most close approaching on frequency of an edge to the frequency spotted by the given mathematical expression then erect parametres of modulation/demodulation for each of subchannels, and data transmission carry out with use of the chosen parametres of filters and parametres of modulation/demodulation of a signal in the subchannel. |
 Method and device for selecting interval in given frequency spectrum for frequency division multiple access systems / 2341916Present invention pertains to a method and device for estimating power using a subscriber point in a frequency division multiple access system (FDMA) in the process of selecting an interval. That way the power of the signal, related to one interval, can lead to detection of power in an adjacent interval, even if there is actually no signal in the neighboring interval. |
 Improved method and device for transmitting beacond signals / 2341897User data are sent in parallel with information of the transmitter in many implementation versions In many cases the user data is allocated more than 20% of the maximum output power of the transmitter. A defined power value of tones is used. The tones are used for transmitting information from the transmitter, with simultaneous transmission of user data using more than 20% of the available transmission power. |
 Use of frequency pseudo-randon sequencies for reducing interferrence from pico-networks in multi-layered networks for ultra-broadband communication / 2341895Device for a multiband communication system for ultra-broadband communication (UBC) comprises a transmitter subsystem, consisting of controller, configured with provision for dividing the ultra-broadband communication (UBC) channel into a pseudo-random sequence of N frequency subbands, modulator, configured with provision for generating a sequence of modulated pulses, transmitter, configured with provision for transmitting each modulated pulse in the above mentioned sequence, receiver subsystem, receiver, controller, configured with provision for combining, in the sequence of modulated signal pulses, received in accordance with the pseudo-random sequence of N frequency subbands and demodulator. In the method of transmitting data through ultra-broadband communication, the ultra-broadband communication channel is divided into a pseudo-random sequence of N frequency subbands. The signal is modulated in form of a pulse sequence. The modulated pulse is then transmitted in the given sequence using one of the above mentioned sequences of N frequency subbands. The ultra-broadband communication signal is received by a transmitter. The received N frequency subbands are combined. The ultra-broadband communication pulse sequence is demodulated from the combined N frequency subbands. |
 Button unit and mobile terminal with this unit / 2341032Button unit includes multiple switch buttons, lightguide sheet installed under at least one of multiple switch buttons, light radiator intended for generation of light at the edge of lightguide sheet, at that lightguide sheet directs light from light radiator in direction of at least one of multiple switch buttons, electronic circuit wafer generated under lightguide sheet, and multiple switches formed on substrate for electronic circuit, at that every of multiple switches corresponds to one of multiple switch buttons. Lightguide sheet is installed above the top section of every one of multiple switches. |
 Parametric generator of traveling wave of stochastic oscillations / 2341864Parametric generator of traveling wave of stochastic oscillations contains non-linear amplifier, inertial unit, 1, ..., nth units of non-linear elements, band-pass filter of the second order and pumping oscillator. |
 Generator of artificial traffic / 2339155Invention is related to radio engineering and communication, may be used in modeling and testing of telecommunication systems, in particular, local computer networks at the stage of design. Random sequences generated in this invention make it possible to imitate the load with property of self-similarity. In generator of random signals, which contains noise generator, the first device of selection and storage, generator of ramp voltage, the first comparison circuit, delay element and RS-trigger, the following components are introduced: additional generator of noise, the second device of selection and storage, the second comparison circuit, reconfigurable clock pulse generator and switch. Invention may be used for long-term prediction of self-similar load during synthesis of communication network control system in aspects of intranet organisation. |
 Method of generating pseudorandom signal chaotic sequence / 2335842Proposed method incorporates generating chaotic sequence of pseudorandom signals by numeric integration of a non-linear set of differential equations with the dynamic chaos and the variable step of time count directly proportional to the depth of modulation and the control effect time function. |
 Superhigh frequency wide band random signal generator / 2332780According to proposed design, SHF wide band random signal generator, represents series-connected SHF wide-band amplifier, directional coupler, load, and feedback circuit connected between the other output of directional coupler and input of SHF wide-band amplifier and containing nonlinear element. The latter is designed in the form of magnetic field regulated wide band nonlinear pass-band filter on magneto-static waves, having incident area of amplitude characteristic and simultaneously providing delay of signal travelling in feedback circuit. |
 Method of generation of wide-band shf chaotic signals and generator of wide-band shf chaotic signals / 2327278Invention relates to generation of the wide band SHF chaotic signals and may be used in communication, radars, instruments. The method allows reducing the irregularity of spectral characteristic and features a consecutive signal amplification by, at least, two amplification stages, the first operating in a minor amplification mode, while the other one, in a mode of nonlinear amplification. The signal is limited after amplification in the third amplification cascade which operates in a limiting mode. A part of the signal, after limitation, is branched off in the load, and the part of signals left after branching off is sent to the first amplification cascade. The generator incorporates the first and second amplification cascades, the limitation cascade made as the third amplification cascade, and a microband coupler. |
 Generator of chaotic oscillations / 2321155Generator of chaotic oscillations contains resistor, capacitor, two inductive elements and nonlinear impedance transformer. |
 Device and method for generation of chaotic signal with constant amplitude / 2307451Constant amplitude chaotic signal device contains an array of triangular shape signal generators, composed of n individual triangular shape signal generators, where n is more than one, adder of signals, controller of amplitude of total signal, regulator of average value of signal, ensuring possible control over average frequency, sinusoidal generator, controlled by voltage. Method for producing chaotic signal with constant amplitude is characterized by following operations: a set of triangular shape signals is generated with symmetric frontal and back fronts; aforementioned set of signals is totalized to form a single composite signal, consisting of sections with linear alternation of voltage; required amplitude of composite signal is set by application of controlling voltage; average composite signal frequency value is set by applying controlling voltage; by means of resulting composite signal, chaotic change of frequency of sinusoidal voltage-controlled generator is performed. |
 Random-wave oscillator / 2305891Proposed random-wave oscillator has inductive component, capacitor, resistor, negative-resistance unit, and nonlinear capacitive component. |
 Device and method for generation of chaotic signal / 2298281The device has a group of independent pulse generators, OR gates, a group of independent sinusoidal oscillators and an adder. A binary signal with a pseudorandom phase manipulation is formed in the method, this signal is used for switching-on and switching-off of the sinusoidal oscillators, the signals of the sinusoidal oscillators are summed up in the adder with formation of a chaotic signal at its output. |
 Noise generator / 2292110Proposed noise generator has DC supply connected to electric current conductor made in the form of insulated wire many times folded up at angles of 180 deg. so that all bends are disposed on same plane in tight contact to one another; this electric current conductor is placed in cryostat. |
 Poisson pulse stream generator / 2246174Proposed Poisson pulse stream generator has k + 1 memory devices, comparison unit, k digital-to-analog converters, control circuit, register, counter, selector, k bell-shaped pulse generators, adder, voltage-to-current converter, and clock generator. |
FIELD: physics, radio.
SUBSTANCE: invention concerns radio engineering and application as shapers of noises in transmitters of noises of different function, and also in radio communication resorts can find. Generator of the broadband frequency-modulated signal contains the shaper modulating oscillations and the self-oscillator, the generator of a signal with a continuous spectrum, the multiplication block, a loading, thus the shaper modulating oscillations are contained by the shaper of the normalised noise, the shaper of sawtooth impulses, the shaper of a white noise and the adder, and the self-oscillator contains the tunable shaper of a constant voltage and the generator controllabled a voltage.
EFFECT: expansion of instantaneous spectrum of signal, decrease in level of autocorrelation noises.
3 dwg
The device relates to electrical engineering and can be used as shapers signal jammer for various purposes, as well as the means of radio communication.
Known generators of noise A.S. 1817634, NV 5/12, Pat. RF 2042260, NV 5/12, their disadvantage is the narrow bandwidth of the radiated signal. Known noise generator according to U.S. Pat. RF 25251, NV 29/00, the generator of chaotic oscillations in U.S. Pat. RF 2058660, NV 29/00, which disadvantage is the limited bandwidth and the inability to control this parameter, as the spectral density of the noise.
Also known system connected generators in the presence of inertia, described in the article kalyanova EV, Lebedev PHYSICS. "Stochastic oscillations in the system connected generators in the presence of inertia", published in the journal "technology and electronics". Volume XXX, VIP, August 1985, str, its disadvantage is the considerable unevenness of the spectral density of the generated noise and the inability to control the parameters of the stochastic fluctuations.
The closest in technical essence to the present invention is a noise generator with the restructuring of the spectral parameters on the patent for utility model RF 54277, NV 29/00 adopted for the prototype.
Figure 1 shows the functional diagram of the device of the prototype, where indicated:
1 - oscillator-based generator, voltage-controlled (VCO);
1.1 - a voltage controlled oscillator (VCO);
1.2 - tunable driver constant voltage;
2 - shaper relaxation oscillations;
2.1 - shaper normalized noise;
2.2 - shaper sequence sawtooth pulses;
2.3 - adder;
4 - load.
The device prototype contains connected in series shaper modulating relaxation oscillations 2, the oscillator-based VCO 1 and the load 4. This shaper modulating relaxation oscillations 2 contains connected in series shaper normalized noise 2.1, shaper sequence sawtooth pulses 2.2 and the adder 2.3, the output of which is the output of the shaper modulating relaxation oscillations 2. In addition, the second output of the shaper normalized noise 2.1 is connected with the second input of the adder 2.3. Oscillator 1 has connected in series tunable driver constant voltage 1.2 and VCO 1.1, the input of which is the input of the oscillator 1. The output of the VCO 1.1 is the output of the oscillator 1. Entrance tunable driver constant voltage 1.2 is input to the control voltage.
The device prototype works as follows. When the power supply is the formation constant voltage 1.2 and modulating relaxation oscillations in unit 2, which are fed to the input of VCO 1.1. The amplitude of the DC voltage sets the frequency of the harmonic oscillations ω 0 VCO 1.1, which is the average frequency spectrum of the noise signal. The amplitude of the DC voltage can be changed under the influence of U panel , applied to the input of block 1.2. The frequency generator of the prototype is determined by the amplitude modulating relaxation oscillations. Modulating the relaxation oscillation is an additive mixture of normalized noise and modulated by the same noise sequence sawtooth pulses. The pulses in the sequence differ in duration, and hence the steepness of the "saw" and "normalize" the relaxation oscillation at the input of VCO 1.1. The average duration of the sawtooth pulse is selected such that at a certain ratio with reaction time GONG 1.1 on the disturbance occurs expanding the range of noise fluctuations. Under the influence of the changing amplitudes of the DC voltage and the relaxation oscillations in the load 4 is formed a noise signal with the given parameters.
The drawback of the prototype is that the sequence of sawtooth pulses is modulated normalized noise, this leads to the formation of correlations between components of the interference and, consequently, reduces the effect of such interference. Another disadvantage of the generator of the prototype is that instant the noise spectrum is a narrow band frequency-modulated noise interference, the frequency of which varies in accordance with change of the modulating voltage. When the range of change of frequency interference exceeds the bandwidth of the receiver, the interference becomes impulsive nature.
To compensate for such interference developed a large number of effective schemes of protection from interference, such as schema broadband amplification, limiting, gain (SHOW), broadband amplification, interrupts, gain (silos) and so on (see, for example: M.V. Maximov, Bonev BTW, Krivitsky KAPYSHEV and other "Protection from interference", ed. "Owls. radio", 1976, str...400).
To address these shortcomings in the generator broadband frequency-modulated signal containing serially connected driver control of oscillations and the oscillator and the load, and the driver of the modulating oscillations contains connected in series shaper normalized noise shaper sequence sawtooth pulses and the adder, the output of the adder is the output of the shaper modulating oscillation, the oscillator consists of series-connected tunable driver constant voltage and generator voltage-controlled (VCO)whose output is the output of the oscillator and the input of the oscillator input of the VCO, a second input of the tunable driver constant voltage is input to a control voltage according to the invention is introduced to the signal generator and block multiplication, the output of which is connected to the input of the load, its first input connected to the output of the oscillator and the second input to the output of the signal generator and shaper white noise, the output of which is connected with the second input of the adder.
Structural diagram of the inventive device shown in figure 2, where indicated:
1 - oscillator-based generator, voltage-controlled (VCO);
1.1 - a voltage controlled oscillator (VCO);
1.2 - tunable driver constant voltage;
2 - shaper modulating oscillations;
2.1 - shaper normalized noise;
2.2 - shaper sequence sawtooth pulses;
2.3 - adder;
2.4 - white noise shaper;
3 is a block multiplication;
4 - load;
5 - signal generator.
The proposed device has connected in series shaper modulating oscillations 2, the oscillator-based VCO 1, block multiplication 3 and the load 4, and the signal generator 5, the output of which is connected with the second input of the multiplication 3.
This shaper modulating oscillations 2 contains connected in series shaper normalized noise 2.1, shaper sequence sawtooth pulses 2.2 and the adder 2.3, the output of which is the output of the shaper modulating oscillations 2 and white noise shaper 2.4, the output of which is connected with the second input of the adder 2.3.
The oscillator 1 is composed of series-connected tunable driver constant voltage 1.2 and VCO 1.1, the output of the VCO 1.1 is the output of the oscillator 1 and the input of the VCO 1.1 input of the oscillator 1. Entrance tunable driver constant voltage 1.2 is input to the control voltage.
The proposed device operates as follows.
Modulating the oscillation is an additive mixture of white noise and modulated normalized noise sequence sawtooth pulses. The frequency-modulated oscillation from the output of the oscillator 1 is fed to the first input of the multiplication 3, to the second input of which is applied the output signal from the signal generator 5. At the output of the signal generator 5, a signal is generated with a continuous spectrum in a particular frequency band.
The output of block multiplication 3 are formed differential and total combinational components between the frequency-modulated noise fluctuation coming from the output of the oscillator 1, and the signal from the output of the signal generator 5. The spectrum of the signal at the output of block multiplication 3 is continuous, and the signal is frequency-modulated.
For example, one of the frequency components of the resulting signal (total component) can be written in the form
where U is the amplitude of the resulting signal;
ω g ϕ g - frequency and phase one of the components of the signal generator 5,
ω W , ϕ W (t) - frequency and phase of the frequency-modulated noise vibration coming from the output of the oscillator 1.
As the signal generator 5 can be used, for example, the driver of the white noise or the signal generator with a continuous spectrum, according to the scheme in figure 3.
Block diagram of the signal generator with a continuous spectrum is shown in figure 3, where indicated:
5.1.1-5.1.n - from the first to the n-th spectral shapers DC voltage;
5.2.1-5.2.n - from the first to the n-th oscillators, voltage controlled (VCO);
5.3 nonlinear element;
5.4, 5.5 first and second bandpass filters.
The signal generator with a continuous spectrum 5 contains n tunable shapers DC voltage 5.1.1-5-1 .n whose outputs are connected to inputs of respective n VCO 5.2.1-5.2.n whose outputs are combined and connected to the input of the nonlinear element 5.3, the output of which through the first band-pass filter 5.4 is connected to the input of the second bandpass filter 5.5, the output of which is an output device. In addition, the output of the first bandpass filter 5.4 is connected to the input of the nonlinear element 5.3. Thus the inputs tunable shapers DC voltage 5.1.1-5.1.n are inputs for control voltages U panel .
In the operation of the signal generator 5, due to the formation of combinational components between signals VCO 5.1.1-5.1.n, and the signal from the output of the first bandpass filter 5.4, the output of the second bandpass filter 5.5 signal is formed with the spectrum band which is determined by the bandwidth of the second bandpass filter 5.5. The distance between the spectral components is regulated by selecting the amplitude of the control voltage U panel , determining frequencies of harmonic oscillations at the outputs of VCO 5.1.1-5.1.n. Under certain ratios between the frequencies of harmonic oscillations, for example, when the difference between them tends to an irrational number, the spectrum of the generated signal tends to a continuous spectrum. As a non-linear element 5.3 can be used, for example, nonlinear dvukhpolosnykh type diode bridge, and used the diodes have a quadratic characteristic.
Thus, in comparison with the prototype, the proposed device provides for the formation of load-frequency modulated noise signal with instant broadband spectrum, which leads to increased time of exposure to noise and thus increases the efficiency effects of interference, using a number of schemes amplitude-frequency selection, such as the diagram SHOWS, silos, etc. in Addition, the proposed device provides a reduced level of autocorrelation in the noise.
Generator broadband frequency-modulated signal containing serially connected driver control of oscillations and the oscillator and the load, and the driver of the modulating oscillations contains connected in series shaper normalized noise shaper sequence sawtooth pulses and the adder, the output of the adder is the output of the shaper modulating oscillation, the oscillator consists of series-connected tunable driver constant voltage and generator voltage-controlled (VCO)whose output is the output of the oscillator and the input of the oscillator input of the VCO, the input of the tunable driver constant voltage is input to the control voltage, characterized in that the input signal generator with a continuous spectrum and block multiplication, the output of which is connected to the input of the load, its first input connected to the output of the oscillator and the second input to the output of the signal generator and shaper white noise, the output of which is connected with the second input of the adder.