The forming device interference

 

(57) Abstract:

The invention relates to the field of radio, namely, the technique of creating an artificial interference. The aim of the invention is to develop a device forming interference for creating targeted, intentional, misleading interference with specific communication protocols link layer. For this purpose, in the known device interference optionally enter the unit for determining the intensity of transmission and the set of time intervals, with which the measurement of the intensity of transmission frames in the suppressed channel, the formation of an adequate duration of the cycle radiation interference and the formation of the emitted misleading sequence of pulses. Using information about the intensity of transmission frames in the suppressed channel allows to achieve cost reduction time radio noise emissions to ensure a certain degree of disorganization of the suppressed data transmission channel. 1 S. and 2 C.p. f-crystals, 7 Il.

The invention relates to the field of radio, namely the technique of creating an artificial interference and, in particular, can be used as and is swesty device forming interference [1 and 2]. Scheme of construction of such devices include antennas, antenna switches, detection equipment and signal analysis, instrument noise, control equipment and transmitter interference. These devices can radiate interference continuously or in response to relatively long ( 2C) messages, which leads to unnecessary costs power, and time of radiation on the disorganization suppressed the radio.

The closest in technical essence to the application is a device for the formation of interference [2]. The device prototype includes an antenna system with antenna switch, detection equipment, consisting of a receiver and analyzer technical (spectral, structural) characteristics of the signal, the forming device interference, the control equipment, the transmitter interference. In this arrangement, the receiver (usually with automatic search of signals in frequency, space and time) is used to detect radio emissions, the selection signal amplification and processing. The analyzer is used for technical analysis of detected signals and selection patterns of interference. According to the results of signal analysis, the decision to create interference. The device to create elektronnih funds. Control equipment used for collection, processing information signals and their sources, display indicators together signal and interference, providing necessary guidance accuracy interference on the signal, and to activate the station interference. Transmitter interference emits continuous or pulse modulated high-frequency oscillations of the required power in a given frequency range. Control equipment depending on the parameters received signal selects the most efficient type of interference produces a voltage controlling operation of the transmitter, and adjust the transmitter frequency of the suppressed station. This ensures the formation of sighting frequency, time and space interference with one of the available location type of modulation. The known device is focused on creating interference in networks that implement the principles of switching channels.

However, the known device has disadvantages. Thus, the suppression of the modern digital radio networks, based on the principles of message switching, in such a device is found the following disadvantages: you cannot reply to interference due to the small duration (10-100 MS) messages and snoqiteh; control equipment does not react to the intensity of the transmission channel and features used in its protocols.

The aim of the invention is to develop a device forming interference, ensuring the creation of sighting intentional interference with specific communication protocols link layer.

This objective is achieved in that in the known device the formation of interference, including the antenna system with antenna switch, power control, detection and analysis, the formation of interference and transmitter interference, the output of which is connected through a first input of the antenna switch antenna system, and its first input is connected with the first output of the noise shaping unit, the first input of which is connected with the first output control unit, the second, third and fourth outputs, which are connected respectively to the second inputs of the transmitter interference, antenna switch and block detection and analysis, the first input of the latter via the antenna switch is connected with the antenna system introduced additional blocks for determining the intensity of transmission and generation time intervals. In the proposed device the first and second inputs of the unit definition management, and the first, second, third and fourth outputs of the unit for determining the intensity of transmission is related to the corresponding inputs of the processing unit time intervals, the output, and an additional fifth input of which is connected respectively to the second input and second output of the noise shaping unit.

The unit for determining the intensity of transmission consists of forming a device, comprising cascade connected amplifier-detector and amplifier-limiter element And the first, second, and third shift register, a storage register, a comparator, first and second adenovirally with the re-launch, the first and the second element "OR", the first and second trigger and clock. Entrance forming device connected to the output of the block detection and analysis, and the first output of the amplifier-detector connected to the output of the amplifier-limiter, the output of which is fed to the first input element And the second input of which is connected to the output of the second trigger and the first input of the second element "OR". The output element And is fed to the first input of the first shift register, a second input connected to the output of the first trigger and the second input of the second trigger. The output of the first shift register connected to the first input of the and, the inlet of which is connected to the fifth input of the storage register and the second output clock, the first output of which is applied to a second input of the second element, "OR", the output of which controls a second input of the first trigger. The generator input clock pulses connected to the first input of the second trigger and the output of the first cell OR the second input of which is controlled by the signal "SET ", coming from the fifth output control unit, and the first input element "OR" coupled to the output of the first one-shot, whose input is connected to the second output of the amplifier-detector. The first, second, third and fourth outputs of the second shift register are connected to respective inputs of the register storing the first, second, third and fourth outputs of which serves to corresponding inputs of a comparator, fifth, sixth, seventh and eighth inputs of which are connected respectively to the first, second, third and fourth outputs of the third shift register. First, second and third outputs of the comparator serves to corresponding inputs of a processing unit of time intervals, to the fourth input of which is connected to the third output clock pulse.

The shaping unit time intervals is of liveration, the first and second cell "OR" storage register, shift register, the first and second counter element "NOT" and shaper of a single pulse. The first inputs of the first, second and third element And connected respectively to the first, second and third outputs of the unit for determining the intensity of transmission, and their second inputs are connected together and connected to the second input of the fifth element "And", the second output of the noise shaping unit and the input of the shaper of a single pulse, the output of which is connected to the second inputs of the first and second counters and the output of the latter, the outputs of the first, second and third element And are fed to the inputs of the respective standby multivibrators whose outputs are connected to respective inputs of the first element, OR, the output of which is fed to the first input of the fifth element "And", the output of which is connected to a second input of the processing unit, interference, and the third input of the fifth element And connected to the first input of the second counter and the output of the second element, "OR", a second input connected to the output of the fourth element And the second input of the latter is connected to the output element "NOT", the input of which is connected to the tenth sign of the shift register and the output of the first counter, the first input catered and ninth input of the shift register, from the first to the eighth inclusive, the inputs of which are connected with the corresponding outputs of the storage register, the output of the shift register is fed to the first input of the second cell "OR".

Listed a new set of essential features provides by using the periodic determination of the intensity of transmission of the messages transmitted by the suppressed channel, formation of adequate intensity misleading disturbances radiation, bringing the total traffic channel to its theoretical limit. In practice, this will lead to the fact that the queue size, consisting of messages ready for transmission, and the waiting time them access to the channel will tend to infinity.

In Fig. 1 shows a General block diagram of the device forming interference; Fig. 2 and 3 is a structural block circuit diagram for determining the intensity of transmission, and Fig. 4 block diagram of the shaping unit time intervals; Fig. 5 is a structural block circuit diagram of the detection and analysis; Fig. 6 is a block diagram of the control unit of Fig. 7 is a structural block circuit diagram of the formation of interference.

Device for the formation of interference shown in Fig. 1 includes the antenna system (as) antenna switch (AK) the programs (BOMP) 6, generating time intervals (BPVI) 7 and the transmitter interference (PP) 4. Exit 113 speakers with AK 1 is connected with the output 121 BOA 2, and the output 111 AC AK 1 is connected with the output 143 PP 4. The outputs 131 - 135 BU 3 are connected respectively to the inputs of the FFT 152 5, 142 PP 4, 112 speakers with AK 1, 122 BOA 2 and 162 BOP 6. The output 123 BOA 2 is input 161 BOP 6, the outputs 163 and 166 which are connected respectively to the inputs 171 - 174 BPVI 7. Exit 176 BPVI 7 is connected with the output 153 FFT 5, the outputs 151 and 154 which are connected respectively to the input 141 PP 4 and input 175 BPVI 7.

The unit for determining the intensity of transmission, the scheme of which is shown in Fig. 2, consists of an amplifier-detector 601, amplifier-limiter 602, item 603 "And", shift registers 604, 605 and 611, register storage 606, the comparator 607, odnovorov 608 and 615, elements 609 and 614 "OR" triggers 610 and 613, clock pulses (GTI) 612.

The input 3 of the amplifier-detector 601 is connected to the output 123 BOA 2 and input 1 is connected to the input 1 of the amplifier-limiter 602, output 2 is connected to the input 1 of the element 603 "And". Input 2 element 603 And is connected to the output 3 trigger 613 and entry 1 of the element 614 "OR" exit 2 which is connected to the output 1 of the GTI 612 . Output 3 item 603 "And" is supplied to the input 1 of the shift register 604, the input 2 is connected to output 3 trigger 610 and 2 which is connected with the output 3 of the element 614 "OR". The output 2 of the shift register 605 is connected to the output 4 of the one-shot 615, input 3 which is connected to the input 5 of the storage register 606 and output 2 GTI 612. Outputs 3-6 shift register 605 serves respectively to the inputs 1-4 register storage 606, and outputs 7-10 which are connected respectively to the inputs 8-11 comparator 607. Inputs 4-7 comparator 607 is connected respectively to the outputs 1-4 of the shift register 611. Outputs 1-3 of the comparator 607 is connected respectively to the inputs 171-173, BFVI 7. Output 2 amplifier-detector 601 is input to 3 the one-shot 608, the output 4 of which with input 1 item 609 "OR" exit 3 which is connected to the input 1 trigger 613 and input 4 GTI 612, exit 3 which is applied to the input 174 of BPVI 7. Input 2 item 609 "OR" coupled to the output 135 BU 3.

The set of time intervals, the scheme of which is shown in Fig. 3, consists of elements 701-703, 708 and 713 And waiting multivibrators 704-706, elements 707 and 714 "OR" storage register 709, the shift register 710, counters, 711, 715, item 712 "NOT" and shaper of a single pulse 716. Inputs 1 elements 701-703 And connected respectively to the outputs 163-165 BOP 6, and outputs 2 elements 701-703 are interconnected and are connected to the input 2 of the elements 708 And output 154 FFT 5 and input 1 driver 716. Outputs 3 the inputs 1-3 element 707 "OR", output 4 which is connected to the input 1 item 708, "And". The input 9 of the shift register 710 is connected to the input 1 item 713 "And" exit 166 BOP 6 and the input 1 of the counter 711, exit 3 which is connected to the input 1 of element 712 "NOT" and the input 10 of the shift register 710. Output 2 item 712 "NOT" connected to the input 2 of item 713 "And" exit 3 which is fed to input 2 of the element 714 "OR". Outputs 1-8 register 709 are connected respectively to inputs 1-8 of the shift register 710, exit 11 which is connected to the output 1 of the element 714 "OR". Output 3 item 714 "OR" connected to the input 3 of the element 708 And the input 1 of the counter 715, exit 3 which is connected to its second input, input 2 counter 711 and output 2 driver 716. Output 4 item 708 And is input to 153 FFT 5.

The elements described blocks are known and can be implemented on commercially available chips series: 133, 523 and 555. As constituent parts of the block detection and analysis 2 shown in Fig. 4, can be used commercially available device poiska-direction-finding (UPP) R-UP and analyzer R-T. As output 123 BOA 2 can be used the standard output SCP. Included in the device control units 3 and forming interference 5 are provided corresponding the radio series P-330.

The proposed device operates as follows. The control unit 3 organizes the work of the entire device for multiple repetitive cycles.

In the cycle of exploration BU 3 translates BOA 2 in the automatic search. Upon detection of the SCP source of radio emission (IRI) BOA 2 defines the value of the carrier frequency and code this value comes in BU 3 analysis in a storage device (storage). If the code is this frequency that is recorded in one of the ZU, BU 3 gives the SCP command "RESET" and the search for new Iran resumes. When it detects a new IRI code its frequency after a similar test is recorded in the memory BU 3, the search stops, the SCP stores the setting, and the operator can control and analysis of the received signal using the analyzer (Fig. 4). The decision to suppress this IRI is taken by the operator according to the results of the analysis, Then the operator's command codes this frequency and type of transfer is recorded in the block storage devices, the suppressed frequencies (BSUP) (Fig. 5). After the end of the cycle exploration BU 3 puts the device in a control mode.

In the cycle control with BU 3 input 122 BOA 2 a code frequency recorded in BSUP and at the same time command gives BU 3 signal the presence of radiation. At the same time, the if signal output 123 BOA 2 is fed to the input 161 BOP 6 and further forming unit (FU). FU converts the input voltage into pulses with steep edges, the amplitude and the shape of which does not depend on the shape and amplitude of the input signal. The sequence formed FU pulse output 2 amplifier-limiter 602 is input 1 item 603 "And". On the other input 2 output 3 countable trigger 613 signal authorizing the operation mode of counting pulses. The latter is controlled by signal "SET" (every time I move to another frequency in the control mode) which is supplied with output 135 BU 3 input 162 BOP 6 and further to the input 2 of item 609 "OR". Output 3 item 609 this command is received at the input 1 trigger 613, setting its status to "I". On the same team for the entire period of account is locked entrance 4 GTI 612 and begins the formation of the reference interval (output 2 GTI 612), which is a pulse of negative polarity. Upon receipt of the enabling signal "I" to the input 2 of the element 603 with its release 3 analyze the sequence of pulses applied to the input 1 bit of the register 604. In the proposed version of the device, the decision about the transmission frame in cannegieter 604 is fed to the input 1 of the register 605 and input 1 trigger 610, which has a status of "I" and its output signal resets the register 604 and the trigger 613 in the state "O", thereby prohibiting the counting continued the remaining pulses of the current frame. After that, the cutting edge of the nearest pulse received from the output 1 of the GTI 612 meander through the element 614 "OR" trigger 610 is transmitted to the status of "O" that ensures the preparation of the register 604 to the next account. Counting pulses of the next frame begins with the appearance of the front of the frame supplied from the output 2 of the amplifier-detector 601 to the input 3 of the one-shot 608 to re-start, output 4 forms a single short pulse. This momentum through the element 609 "OR" switches the trigger 613 in state "I", which provides the resolution of the next stage of the bill. At the end of the reception of the current frame of the one-shot 608 does not respond to reverse the differential voltage at the output 2 of the amplifier-detector 601 and stores the zero state at its output 4 until the next frame. Thus, the output 3 of the shift register 604 signal consisting of a sequence of single pulses with random time intervals between them, which is equivalent to the number transmitted in the control channel CA is th signal of the reference interval, generated at the output 2 of the GTI 612 and which is as already mentioned a pulse of negative polarity is produced such that it fits within the duration of the period during which the SCP stores the setting to a controlled frequency. At the end of the measurement interval the intensity of transmission in the channel, the rear edge of the pulse of the reference interval (positive polarity) is supplied to the input 5 of the register 606 as the command to write to the register 606 information from the outputs of register 605. In addition, the same front, input 3, starts the one-shot 615, which at its output 4 generates a short pulse of negative polarity is required for the detection of register 605. Information recorded in the register 606 storing it until the end of the next interval of measuring the intensity of transmission in the channel. Further it is used for the operation of the comparator, which allows you to make a decision about the required duration of the interval of the radiation jamming sequence. The comparator collected on the storage registers 606, 611, and the comparator 607. In the storage register 611 in binary form recorded the number, the value of which may be permanent or removable. At the end of the interval account and Zap the use of the comparator 607 numbers stored in registers 606 and 611 are compared, resulting immediately after the interval account on one of the outputs 1-3 comparator 607 a signal "I" denoting the following intensity of transmission in the channel: if output 1 is the intensity of transmission is greater than the specified; if output 2 is the measured intensity of transmission is equal to the set; if output 3 is the intensity of transmission in the channel is less than the specified values.

After the end of the cycle control BU 3 through the output 131 sends the command settings of the pathogen entering FFT 5 input 152. After its execution begins the cycle of radiation. Depending on the intensity of transmission frames in the channel, that is, when the signal "I" on one of the outputs 163-165 BOP 6 connected respectively to the inputs 171-173, BFVI 7, the shaping unit time intervals provides the choice of an appropriate time-out radiation. This choice and the formation of the jamming pulse is carried out as follows. The signal "I" supplied to the input 1 of one of the elements 701-703 AND BPVI 7 provides the choice of an appropriate multivibrator 704-706, and the formation of this multivibrator desired time interval radiation begins with the appearance of the x, with the signal "I" at its input 1, and runs the appropriate multivibrator. Additionally, the command "send" their front front provides run driver 716, the leading edge of a single pulse which resets to zero state of the counter 711 and 715, which provides the initial formation of the desired sequence of pulses. When input 2 element 708 "And" command "send" allows pass is formed at the output 3 of the element 714 "OR" pulse sequence, which, when input 3 item 708 And passes its output 4 only during the time interval specified by the running multivibrator. The required pulse sequence is formed as follows. To the input 174 of BPVI 7 output 166 BOP 6 from the GTI 612 enters the meander, which sets the transmission speed. The pulses of the square wave is fed to the input 1 of the element 713 And the input 9 of the shift register 710 and the input 1 of the counter 711 64. Until the signal "I" at the output 3 of the counter 711, element 712 "NO" allows pass meander through the element 713 "And" input 2 element 714 "OR". After account 64 pulses at the output 3 of the counter 711 a signal "I", which provides simultaneous stop skip meander through the element 713 and run (input 10 regm with parallel input and serial output. Conclusion the combination of pulses that mimic the flag, is controlled by, that is, with the speed of the waveform at the input 9 of the register 710. Thus, the pulse sequence flag is input 1 item 714 immediately after the account to 64 that leads to the exit 3 element 714 "OR" the 65-th pulse, because the flag is a binary combination of 01111110. Output 3 element 714 is formed in the manner described, the signal at the input 1 of the counter 715 65. With the advent of "I" at its output 3, counter 711 and 715 are reset to the zero state, providing the beginning of the formation of the next similar in its structure the sequence of pulses.

The set of pulses from the output 3 of the element 714 is fed to the input 3 of the element 708. If there are two other permissive signals at the inputs 1 and 2, this sequence takes place at the output 176 BFVI, and then through the entrance 153 FFT 5 in the device of the modulating signal (Fig. 6), which provides the modulation of the pathogen received signal. After the end of the cycle suppression BU 3 interrupts the transmission mode, after which FFT 5 removes the command "send" input 175 BPVI 7. Further cycles of operation of the device forming interference again. the control detection and analysis, the formation of interference and transmitter interference, the output of which is connected to the first input of the antenna system with antenna switch and its first input connected to the first output node of formation of the interference, the first input of which is connected to the first output control node, the second, third and fourth outputs of which are connected respectively to the second inputs of the transmitter interference, the antenna system with antenna switch and node detection and analysis, the first input of which is connected to the output of the antenna system with antenna switch and the fifth output node detection and analysis connected to the first input of the control unit, characterized in that the fifth output control unit connected to the third input node of the detection and analysis, the first, second, third and fourth outputs of which are connected to appropriate inputs of the node forming interference, consisting of n agents, n > 2, block baseband signals, a control unit transmission, switching and processing unit time intervals, the first input of which is connected to the first output transmission control block, and the second input is combined with the second input of the modulating signal, the second input of the transmission control block and the PE the eye formation time intervals are additional inputs of the node forming interference, the output of the shaping unit time intervals connected to the first input of the modulating signal, the first output transmission control block connected to the first input of the switch, the output of which is combined with the second output transmission control block and is the first output node of the formation of interference, and the i-th output block of the baseband signal, where i = 1, 2, ..., N, is connected to the second input of the i-th agent, the output of which is connected to the input of the switch, the node detection and analysis consists of postoperatoria device, the first and second inputs of which are respectively the first and the second input node of the detection and analysis, and its second and first outputs connected respectively to the analyzer input and the first input of the block determination unit for determining the intensity of transmission, the second input of which is the third input node of the detection and analysis, and its first, second, third and fourth outputs are the corresponding outputs of the node detection and analysis, the output of the analyzer is the fifth output node detection and analysis, and connected to the first input node of the control.

2. The device according to p. 1, wherein the unit for determining the intensity of transmission is executed trojstvo, the inlet of which is connected to the output node detection and analysis and is the first input unit for determining the intensity of transmission, and the output of the amplifier-limiter connected to the first input element And the second input is connected to the output of the second trigger and the first input of the second element OR the output element And is connected to the first input of the first shift register, a second input connected to the output of the first trigger and the second input of the second trigger, the output of the first shift register connected to the first input of the first flip-flop and the first input of the second shift register, the second input of the latter is connected to the output of the second one-shot, the first input of which is connected to the fifth input of the storage register and the second output clock, the first output of which is connected to the second input of the second element OR the output of which is connected to the second input of the first trigger, the generator input clock pulses connected to the first input of the second trigger and the output of the first element OR the second input is a second input unit for determining the intensity of transmission, and the first input of the first element OR is connected to the output of the first one-shot, whose input is connected to the second output will increase the input of storage register, the first, second, third and fourth outputs of which are connected to respective inputs of the comparator, fifth, sixth, seventh and eighth inputs of which are connected respectively to the first, second, third and fourth outputs of the third shift register, the first, second and third outputs of the comparator and the third output clock pulses are respectively the first, second, third and fourth outputs of the block detection and analysis.

3. The device under item 1, characterized in that the shaping unit time intervals is performed in parallel to the first, second and third elements, And the first inputs of which are respectively first, second and third additional input node of the formation of interference, and their second inputs are connected, is connected to the second input of the fifth element And the first input of the shaper of a single pulse and the first input of the shaping unit time intervals, the outputs of the first, second and third elements And are connected to the inputs of the respective standby multivibrators whose outputs are connected to respective inputs of the first element OR the output of which is fed to the first input of the fifth element And whose output assetmanage counter and the output of the second element OR a second input connected to the output of the fourth element And the second input of the latter is connected to the output element, the input of which is connected to the tenth sign of the shift register and the output of the first counter, the first input of which is connected to the first input of the fourth element And the tenth sign of the shift register and is the fourth auxiliary input node of formation of the interference from the first to the eighth inclusive inputs of the shift register connected to respective outputs of the storage register, and the output of the shift register connected to the first input of the second element OR the output of a single pulse shaper connected to the second inputs of the first and second counters and the output of the second counter.

 

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Passive radar veil // 2044251

FIELD: technologies for preventing interception of data.

SUBSTANCE: transferred signal is concealed via adding noises to communication line in speech frequency range with linear addition of speech data signal with noise signal of higher level. Concealment is removed via adaptive filtration of received signal with compensation of noise component and separation of data component. Addition of noises to communication line is performed from the side of sensor. Noise signal during addition of noises and adaptive filtration is formed of a sum of counts of several noise series with nonevent sizes via their random querying. At the beginning of each communication session a signal is sent to side of receiver, characterizing order of querying of series, and starting signal, providing for synchronism of noises addition and filtering processes. All operations are performed by means of microprocessors, mounted on both sides of communication line, dependently of loaded software providing for change of direction of transmission and protection of speech data signal. Invention allows to simplify protection while providing for absolute confidentiality of transmitted data.

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FIELD: radio engineering; secret intelligence protected radio communication systems.

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2 dwg

FIELD: radio engineering, namely, equipment for generating artificial interference, possible use for protecting information from leaking along vibro-acoustic channel from a room.

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FIELD: engineering of equipment for counteracting commercial and industrial espionage.

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