CN116776534A - Electronic countermeasure technology suitable for civil field - Google Patents
Electronic countermeasure technology suitable for civil field Download PDFInfo
- Publication number
- CN116776534A CN116776534A CN202310497479.3A CN202310497479A CN116776534A CN 116776534 A CN116776534 A CN 116776534A CN 202310497479 A CN202310497479 A CN 202310497479A CN 116776534 A CN116776534 A CN 116776534A
- Authority
- CN
- China
- Prior art keywords
- signal
- link
- channel
- countermeasure
- defending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 238000004088 simulation Methods 0.000 claims abstract description 49
- 238000004891 communication Methods 0.000 claims abstract description 25
- 238000013461 design Methods 0.000 claims abstract description 19
- 238000010009 beating Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000006870 function Effects 0.000 claims abstract description 7
- 230000007123 defense Effects 0.000 claims abstract description 6
- 230000010354 integration Effects 0.000 claims abstract description 3
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 230000003321 amplification Effects 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 238000004458 analytical method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000001228 spectrum Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 238000012805 post-processing Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000002860 competitive effect Effects 0.000 abstract description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention relates to the field of electronic countermeasure for civil use, in particular to an electronic countermeasure technology suitable for civil use. The invention provides an electronic countermeasure technology suitable for the civil field, which takes the tactical idea of 'taking the way of people and also treating the people' by taking the advanced idea in the competitive sport as a reference, and obtains better counterattack effect by adopting a 'simulation' signal mode, namely adopting a technical route imitating the characteristics of countermeasure target communication signals; the use of "defending counterattack+full attack full defense matrix" includes: in the defending link, the accurate working frequency and signal characteristics of the countermeasure target are obtained through detection. In the "back-click" link, targeted throttling is performed by means of "emulated" signals. The full attack and full guard are designed to be multi-channel, so that the combined working frequency of the opposite party can be fully covered in two links of defending and counterattack, so that a plurality of frequencies can be detected at the same time, and a plurality of frequencies can be suppressed at the same time; a hardware design with expandable frequency and a software architecture with upgradeable functions are adopted. The design of 'multi-channel scouting and beating integration' combines with 'simulation' signal mode, reduces own power consumption, improves pressing effect, is suitable for professional electronic countermeasure scene application in civil field, and typical scenes comprise: the countermeasure target is an unknown communication system, the countermeasure target is a multiple working frequency, and the like.
Description
Technical Field
The invention relates to the field of electronic countermeasure for civil use, in particular to an electronic countermeasure technology suitable for civil use.
Background
Electronic countermeasure in a broad sense refers to "gaming" performed by both parties in the electromagnetic spectrum, etc., and can be classified into military electronic countermeasure and civil electronic countermeasure. Military electronic countermeasure, i.e. electronic countermeasure in the traditional sense, refers to electronic measures and actions taken by the enemy parties in the military field to weaken, destroy the use efficiency of the electronic equipment of the other party, etc.
Civil electronic countermeasure is accompanied by rapid development and application of scientific products, and the parties involved in the countermeasure develop 'fights' around electromagnetic spectrum and the like, weaken 'friend and foe' concepts and more present the conversion of 'attack and defense' situation, for example, in order to prevent information disclosure, for the situations of eavesdropping, steal, computer information leakage and the like, an 'countermeasures' are carried out by configuring an interference device or a protector by 'defender' and the like; or "proactive" technical measures taken by the "management" in order to maintain the airwave order, for illicit violations with radio equipment or in accordance with relevant legal regulations, etc.
Civil electronic countermeasure is more like "free fight" sports with "frequency" as "arena", players with "strength" often become the main of the fight "by overwhelming power advantage" submerging the other party ", for example, some mobile phone signal disruptors transmit large signals higher than the signal intensity of the base station to block mobile phone communication, etc.; the 'skill' player is generally not too 'tall and big', can not be 'hard steel', is better in 'confusing camouflage', such as some decoy type anti-unmanned aerial vehicle equipment, is not high in self power level, transmits a 'reformed' GNSS (global satellite navigation system) signal, enters a navigation receiving channel of the unmanned aerial vehicle, and breaks the normal positioning process of the unmanned aerial vehicle through 'wrong' coordinate information, so that the purpose of restricting the unmanned aerial vehicle is further achieved. Just like athletic sports, too single mode often has larger limitation in the process of competing for initiative in the civil electronic countermeasure field, and if the jammer depends on decisive power output, high consumption is brought about, and similarly, "skill" means higher technical threshold and the like.
The conventional civil electronic countermeasure can be roughly divided into two aspects of detection and defense from the technical action, wherein the detection refers to searching and analyzing electromagnetic radiation signals of electronic equipment of the opposite party so as to judge whether the electromagnetic radiation signals exist or not, acquire technical parameters of the electromagnetic radiation signals, and the like, and belongs to passive reception; the content of the defense aspect comprises: "defensive" measures, such as the use of signal secrecy to prevent eavesdropping; by "offensive" means, it is meant that the opposite process or purpose is destroyed, disturbed by actively transmitting a signal, e.g. the opposite is suppressed using a jammer or a shield, etc.
Disclosure of Invention
The invention provides an electronic countermeasure technology suitable for the civil field, which takes the tactical idea of 'taking the way of people and also treating the people' by taking the advanced idea in the competitive sport as a reference, and obtains better counterattack effect by adopting a 'simulation' signal mode, namely adopting a technical route imitating the characteristics of countermeasure target communication signals; the use of "defending counterattack+full attack full defense matrix" includes: in the defending link, the accurate working frequency and signal characteristics of the countermeasure target are obtained through detection. In the "back-click" link, targeted throttling is performed by means of "emulated" signals. The full attack and full guard are designed to be multi-channel, so that the combined working frequency of the opposite party can be fully covered in two links of defending and counterattack, so that a plurality of frequencies can be detected at the same time, and a plurality of frequencies can be suppressed at the same time; the design of 'multi-channel scouting and beating integration' combines with 'simulation' signal mode, reduces own power consumption, improves pressing effect, is suitable for professional electronic countermeasure scene application in civil field, and typical scenes comprise: the countermeasure target is an unknown communication system, the countermeasure target is a multiple working frequency, and the like.
The technical scheme for solving the technical problems is as follows: the electronic countermeasure technology mainly comprises a countermeasure against integrated machine, civil electronic countermeasure software, an active transmitting antenna, a broadband common antenna, a standby broadband power amplifier and the like, wherein a simulation signal mode is adopted, and the simulation signal mode is adopted, namely communication signal characteristic parameters of a countermeasure target are firstly obtained through detection, including a frequency spectrum structure, a time domain waveform, modulation parameters and the like, and then the characteristics of the signals are simulated and similar signals are transmitted for countermeasure; the design adopts a 'covered' working mechanism, namely, the working frequency of the countermeasure target in the field is accurately and comprehensively detected, and further, the countermeasure target is comprehensively and simultaneously pressed; a hardware design with expandable frequency and a software architecture with upgradeable functions are adopted. The working frequency range of the all-in-one machine is based on the actual requirements of the civil field, and the all-in-one machine mainly comprises a defending link, an impact link and the like. The defending link adopts a broadband parallel multi-physical channel design, the channel mainly comprises devices or functional modules such as filtering, signal amplification, down-conversion, ADC (analog-to-digital converter), FPGA (field programmable gate array) or DSP (digital signal processing), and the like, is used for receiving communication signals of an countermeasure target and output signals of the counterattack link, adopts an orthogonal intermediate frequency sampling down-conversion mode to output IQ data, and supports two receiving modes of low noise and large signal through channel gain control; the reaction link adopts a broadband independent multi-physical channel design, and the channel mainly comprises devices or functional modules such as FPGA (field programmable gate array) or DSP (digital-to-analog converter), DAC (digital-to-analog converter), up-conversion, signal amplification and the like, and radio frequency low-power signals are further generated through complex data; the civil electronic countermeasure software is communicated with the observing and beating integrated machine through a network port or a USB (universal serial bus) interface and mainly comprises a defending unit, a simulation signal library, an impact unit and the like. The defending unit is used for controlling a signal path for a receiving channel from an antenna to a digital baseband and performing post-processing on the received signal to finish the processes of capturing a target signal, analyzing the target characteristics, monitoring a pressing process and the like; the simulation signal library is mainly used for field generation of various 'simulation' signal data files, call processing of existing signal data files and the like, and comprises two signal data file generation modes of 'field acquisition' and 'simulation template', wherein the 'field acquisition' mode is as follows: the guard link finishes Digital Down Conversion (DDC) of the received countermeasure target communication signal and outputs IQ data, the simulation signal library further inverts the IQ data to generate a simulation signal data file, and the simulation signal data file is loaded, processed and finally transmitted by the counterattack link to finish a receiving and transmitting loop-back process; the mode of the simulation template is as follows: the method is characterized in that typical mode signals, including basic modulation signal types, common communication system signals and the like, are generated and stored in the 'on-site acquisition' mode in advance by the simulation signal library, and in actual application, characteristic parameters of the 'seed signals' are adjusted according to target characteristic analysis results output by the defending unit so as to imitate countermeasure target communication signals, and the characteristic parameters are stored and set so as to generate new 'simulation' signal data files; the back-impact unit is used for controlling a transmission channel from a digital baseband to antenna radiation in a signal path, and relates to selection of 'simulation' signal data files, channel configuration of the back-impact link and channel setting of the active transmission antenna; the active transmitting antenna has a working frequency range smaller than that of the observing and beating integrated machine, a multichannel design is adopted, the working frequency ranges of all channels are different, each channel consists of a power amplification module with the same working frequency and the transmitting antenna, and the power amplification module and the transmitting antenna are compactly connected to reduce the path loss of final-stage power; the broadband shared antenna has the same working frequency range as that of the inspection and beating integrated machine, is a dual-purpose ultra-wideband antenna for receiving and transmitting, is internally provided with a low-noise amplification module, selects two channels for direct connection and amplification through a switch, is used for detecting and keeping good isolation with the active transmitting antenna under the conventional condition, and can be connected with the standby broadband power amplifier for standby pressing when necessary, wherein the standby pressing comprises reinforcement pressing within the working frequency range of the active transmitting antenna and supplementary pressing outside the working frequency range of the active transmitting antenna.
Furthermore, the defending link and the counterattack link contained in the inspecting and beating integrated machine adopt a broadband multichannel design, namely, the inspecting and beating integrated machine has a wider radio frequency range and an intermediate frequency bandwidth. The defending link, the radio frequency front end adopts a high-linearity device, a plurality of different frequency bands can be analyzed simultaneously through parallel processing, and a variable gain amplifier is adopted to realize the control of channel gain so as to respectively cope with the smaller and larger situations of the received signal; and the counterattack link loads a complex format signal data file which is processed by the civil electronic countermeasure software, generates and outputs a radio frequency low-power signal, and can output a plurality of signals with different frequencies at the same time in different channels. In link design, the counterattack link adds backup tunnels to drive backup throttling, each tunnel adding a monitoring port to synchronize output signals to the defending link.
Further, the civil electronic countermeasure software completes control of a receiving channel through the defending unit, and relates to channel selection of the broadband common antenna, channel configuration of the defending link and the like. The defending unit captures the countermeasure target communication signal through frequency band scanning, further completes target feature analysis through steps of carrier frequency estimation, frequency spectrum distribution statistics, bandwidth measurement, time domain analysis and the like, and outputs a target feature result. When the guard unit executes the monitoring process of the pressing process, the guard unit counts the time domain distribution of the countermeasures communication signals and the counterattack link output signals through high-speed scanning processing in the intermediate frequency bandwidth for a plurality of times, distinguishes the signals with the same frequency and different rules by different colors, completes the comparison of the two signals based on the same-frequency analysis mechanism, and outputs the comparison result so as to adjust the parameters of the in-use 'simulation' signal data file, wherein the purpose of adjusting the parameters is to realize the high 'simulation'; the civil electronic countermeasure software generates a required 'simulation' signal data file through the simulation signal library according to the target feature analysis result completed by the defending unit, and further completes the control of a transmitting channel through the counterattack unit, including the selection of the signal data file, the configuration of the number of channels, the setting of pressing frequency, the setting of gain and output power, the control of a transmitting switch and the like, and finally completes the transmission to realize the application of a 'simulation' signal mode.
Further, the active transmitting antenna is connected with a corresponding channel of the counterattack link, and the input radio frequency low-power signal is subjected to power amplification and radiated by the transmitting antenna to perform target suppression; the broadband common antenna is connected with the corresponding channel of the defending link when in detection application, the amplifying channel corresponds to the low-noise mode of the defending link, and the direct channel corresponds to the large-signal mode of the defending link. The broadband common antenna is connected with the standby broadband power amplifier in the pressing application and uses a through channel of the broadband common antenna; and the standby broadband power amplifier is connected with the standby channel of the impact link during standby pressing.
Drawings
Fig. 1 is a schematic diagram of an electronic countermeasure technical scheme suitable for the civil field.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the invention.
Detailed Description
The examples given below are only intended to illustrate the invention and are not intended to limit the scope thereof.
Further description is provided below in connection with fig. 1 and the specific embodiment.
The scheme of the invention shown in fig. 1 is a schematic diagram, which comprises the main components of an electronic countermeasure technology suitable for civil field, in practical application, the civil electronic countermeasure software completes the control of a receiving channel comprising the broadband common antenna and the defending link through the defending unit, captures countermeasure target communication signals through scanning in a preset frequency band, completes target feature analysis through steps of carrier frequency estimation, frequency spectrum distribution statistics, bandwidth measurement, time domain analysis and the like, and outputs target feature results; the civil electronic countermeasure software completes the processing work of the digital baseband part of the transmitting channel through the simulation signal library, namely generates a simulation signal data file in two modes of 'field acquisition' and 'simulation template'; and the civil electronic countermeasure software completes the selection of the 'simulation' signal data file and the setting of the radio frequency part of the transmitting channel through the counterattack unit. In the two links of receiving and transmitting, the detection and suppression of the 'emulation' signal mode plus the 'coverage' are realized by the 'emulation' signal processing of the digital baseband part and the simultaneous operation of multiple channels of the radio frequency part, so that the electronic countermeasure technology of the invention can be more flexibly applied to various civil fields.
The all-in-one machine for inspection and printing of the embodiment adopts an SoC (system on chip) chip to reduce cost, volume and the like, and specifically includes: the fully programmable SoC capable of providing functions of FPGA, DSP, processor, memory, flash memory and the like is adopted, the radio frequency transceiver SoC capable of providing transmitting functions of DAC, up-conversion, signal amplification and the like and receiving functions of filtering, signal amplification, down-conversion, ADC and the like is adopted, the working frequency is 70MHz-6GHz, the intermediate frequency bandwidth is 20MHz, and the multi-SoC is configured to adapt to multi-channel design. The inspection and beating integrated machine is functionally divided into a defending link, a counterattack link and the like, wherein the defending link is connected with the broadband shared antenna to receive communication signals of a counterattack target, IQ data is output through a DDC, meanwhile, a common port of a combining device is connected with a monitoring port of the counterattack link, and the number of channels is M (M is a natural number more than or equal to 2); and each channel of the reaction link is provided with an output main port and a monitoring port, the main port is connected with the active transmitting antenna, and the monitoring port is connected with the input port of the defending link through a combining device. The channel combination of the reaction link comprises: n channels corresponding to the band 1-band N numbers and i standby channels, wherein the total number of the channels is N+i (N is a natural number more than or equal to 2, and i is a natural number more than or equal to 1). The band represents the practical application working frequency range of a certain transmitting channel, one band covers one or more working frequency bands of a countermeasure target, taking typical mobile phone countermeasure application as an example, counting the frequency bands which are already divided into mobile communication, the actual in-use frequency bands of all large operators and the corresponding modes, the frequency bands to be used in the future of all large operators and the corresponding modes, classifying the similar statistical frequency bands into one band according to the practical requirement and combining the realization condition of the active transmitting antenna, for example, classifying 5G (fifth generation mobile communication technology) downlink frequency bands 758-798MHz which are divided into China broadcast and television and FDD (frequency division duplex) downlink frequency bands 870-885MHz which are used in China and frequency division duplex) downlink frequency bands 870-885MHz which are sequentially classified into band N, so as to cover the target frequencies, wherein the band 1-band N corresponds to the counterlinks and the channels 1-channel N of the active transmitting antenna one by one.
In order to improve application experience, the civil electronic countermeasure software of the embodiment not only embodies basic modules such as a defending unit, a simulation signal library, a counterattack unit and the like, but also adds shortcut keys such as a receiving and transmitting loop and a countermeasure template and the like on an operation interface. The defending unit is presented in a graphical form of a module and a link shown in fig. 1 on an interface, for example, a triangle represents a variable gain amplifier and symbolizes a signal amplifying function, clicking a triangle icon can set gain, all M channels are presented and numbered, and each receiving channel can be controlled respectively, and the defending unit comprises: the broadband common antenna is directly connected with the pull-down menu type selection of the amplifying channel, the gain setting of the signal amplifying module, the radio frequency setting of the down-conversion module, the sampling rate setting of the ADC module and the like; the simulation signal library presents a field acquisition icon and a simulation template icon on an interface, clicks the field acquisition icon, and selects IQ inversion or IQ through in a pull-down menu mode; clicking a simulation template icon, selecting one of a list of seed signals in a form of a drop-down menu, and setting parameters such as signal bandwidth and the like on the selected seed signal, wherein the seed signal comprises modulation types such as FM (frequency modulation), FSK (frequency shift keying), PSK (phase shift keying), QAM (quadrature amplitude modulation), OFDM (orthogonal frequency division multiplexing) and the like; the counterattack unit presents the n+i channels in a graphical form of a module and a link shown in fig. 1 on an interface, and numbers all the n+i channels, and can control each emission channel respectively, including: sampling rate setting of the DAC module, radio frequency setting of the up-conversion module, gain setting of the signal amplification module, switching control of the active transmitting antenna and the like; the receiving and transmitting loop shortcut key completes the whole processes of signal receiving processing, IQ data inversion and signal transmitting processing by one key after the receiving and transmitting frequency is set; the countermeasure templates are mainly aimed at some working frequency bands and types disclosed by communication systems, such as mobile phone countermeasure templates, and the receiving and transmitting channels are presented on an interface in a default configuration mode, and can work normally only by locally adjusting parameters or using default parameters.
The active transmitting antenna of the embodiment has the working frequency band distributed in the frequency range of 70MHz-6GHz in a 'discrete' form, and classified according to the frequency band distribution characteristics of typical civil radio communication service and corresponding to specific models, and comprises: an active transmitting antenna-Phone, which is oriented to mobile Phone countermeasure application; active transmitting antenna-ISM, an antagonistic application to ISM (open for industrial, scientific and medical institutional use) frequency bands; the active transmitting antenna-other, facing other typical types of countermeasure applications, taking typical mobile phone countermeasure applications as an example, according to the current distribution situation of the main commercial frequency band, the working bandwidth of a single channel is designed to be 200MHz, for example, band 1 covering 758-885MHz is realized by channel 1 in the same working frequency range, band N covering 4800-4900MHz is realized by channel N in the same working frequency range; under the automotive application scene, a better pressing effect is realized based on limited capacity, and then the passive part of the active transmitting antenna-Phone adopts a compact plate-shaped directional antenna array form, a sector coverage mechanism and a rotatable lifting design, the transmitting antenna of each channel is formed by arranging a plurality of array elements, the radiation is enhanced by using a metal reflecting plate, the horizontal beam width is about 120 degrees, the azimuth 360-degree coverage is realized by 3 sectors, and the power amplification modules of each channel and the corresponding transmitting antenna adopt a hard connection mode.
The broadband common antenna of the embodiment has the working frequency range of the passive part of 70MHz-6GHz, the working frequency of the built-in low noise amplifier avoids the working frequency band of mobile communication, and the gain is 30dB; the standby broadband power amplifier of the embodiment aims at the working frequency range of 700MHz-3GHz when the typical mobile phone corresponds to the power amplifier. In addition, in this embodiment, for a typical mobile phone and an application, a test mobile phone is additionally configured, and in combination with an APP (application) that is mature, effect verification is performed in a pressed area.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The electronic countermeasure technology suitable for civil field is characterized by that it adopts "simulation" signal mode, i.e. adopts the technological route imitating the characteristics of countermeasure target communication signal to obtain better counterattack effect; the use of "defending counterattack+full attack full defense matrix" includes: in the defending link, the accurate working frequency and signal characteristics of the countermeasure target are obtained through detection. In the "back-click" link, targeted throttling is performed by means of "emulated" signals. The full attack and full guard are designed to be multi-channel, so that the combined working frequency of the opposite party can be fully covered in two links of defending and counterattack, so that a plurality of frequencies can be detected at the same time, and a plurality of frequencies can be suppressed at the same time; the design of 'multi-channel scouting and beating integration' mainly faces to professional electronic countermeasure scene application in civil field, and comprises the following steps: the countermeasure target is an unknown communication system, the countermeasure target is a multiple working frequency, and the like.
2. The electronic countermeasure technology in the civil field according to claim 1, which is characterized by mainly comprising components such as a countermeasure against all-in-one machine, civil electronic countermeasure software, an active transmitting antenna, a broadband common antenna, a standby broadband power amplifier and the like, wherein a 'simulation' signal mode is adopted, and the simulation is adopted, namely, communication signal characteristic parameters of a countermeasure target are acquired through detection firstly, including a frequency spectrum structure, a time domain waveform, a modulation parameter and the like, and then the signal characteristics are simulated and similar signals are transmitted for countermeasure; the design adopts a 'covered' working mechanism, namely, the working frequency of the countermeasure target in the field is accurately and comprehensively detected, and further, the countermeasure target is comprehensively and simultaneously pressed; a hardware design with expandable frequency and a software architecture with upgradeable functions are adopted. The working frequency range of the all-in-one machine is based on the actual requirements of the civil field, and the all-in-one machine mainly comprises a defending link, an impact link and the like. The defending link adopts a broadband parallel multi-physical channel design, the channel mainly comprises devices or functional modules such as filtering, signal amplification, down-conversion, ADC (analog-to-digital converter), FPGA (field programmable gate array) or DSP (digital signal processing), and the like, is used for receiving communication signals of an countermeasure target and output signals of the counterattack link, adopts an orthogonal intermediate frequency sampling down-conversion mode to output IQ data, and supports two receiving modes of low noise and large signal through channel gain control; the reaction link adopts a broadband independent multi-physical channel design, and the channel mainly comprises devices or functional modules such as FPGA (field programmable gate array) or DSP (digital-to-analog converter), DAC (digital-to-analog converter), up-conversion, signal amplification and the like, and radio frequency low-power signals are further generated through complex data; the civil electronic countermeasure software is communicated with the observing and beating integrated machine through a network port or a USB (universal serial bus) interface and mainly comprises a defending unit, a simulation signal library, an impact unit and the like. The defending unit is used for controlling a signal path for a receiving channel from an antenna to a digital baseband and performing post-processing on the received signal to finish the processes of capturing a target signal, analyzing the target characteristics, monitoring a pressing process and the like; the simulation signal library is mainly used for field generation of various 'simulation' signal data files, call processing of existing signal data files and the like, and comprises two signal data file generation modes of 'field acquisition' and 'simulation template', wherein the 'field acquisition' mode is as follows: the guard link finishes Digital Down Conversion (DDC) of the received countermeasure target communication signal and outputs IQ data, the simulation signal library further inverts the IQ data to generate a simulation signal data file, and the simulation signal data file is loaded, processed and finally transmitted by the counterattack link to finish a receiving and transmitting loop-back process; the mode of the simulation template is as follows: the method is characterized in that typical mode signals, including basic modulation signal types, common communication system signals and the like, are generated and stored in the 'on-site acquisition' mode in advance by the simulation signal library, and in actual application, characteristic parameters of the 'seed signals' are adjusted according to target characteristic analysis results output by the defending unit so as to imitate countermeasure target communication signals, and the characteristic parameters are stored and set so as to generate new 'simulation' signal data files; the back-impact unit is used for controlling a transmission channel from a digital baseband to antenna radiation in a signal path, and relates to selection of 'simulation' signal data files, channel configuration of the back-impact link and channel setting of the active transmission antenna; the active transmitting antenna has a working frequency range smaller than that of the observing and beating integrated machine, a multichannel design is adopted, the working frequency ranges of all channels are different, each channel consists of a power amplification module with the same working frequency and the transmitting antenna, and the power amplification module and the transmitting antenna are compactly connected to reduce the path loss of final-stage power; the broadband shared antenna has the same working frequency range as that of the inspection and beating integrated machine, is a dual-purpose ultra-wideband antenna for receiving and transmitting, is internally provided with a low-noise amplification module, selects two channels for direct connection and amplification through a switch, is used for detecting and keeping good isolation with the active transmitting antenna under the conventional condition, and can be connected with the standby broadband power amplifier for standby pressing when necessary, wherein the standby pressing comprises reinforcement pressing within the working frequency range of the active transmitting antenna and supplementary pressing outside the working frequency range of the active transmitting antenna.
3. An electronic countermeasure technology suitable for civil use according to claim 1 and claim 2, wherein the defending link and the countering link included in the all-in-one machine are designed in a broadband multichannel manner, i.e. have a wider radio frequency range and an intermediate frequency bandwidth. The defending link, the radio frequency front end adopts a high-linearity device, a plurality of different frequency bands can be analyzed simultaneously through parallel processing, and a variable gain amplifier is adopted to realize the control of channel gain so as to respectively cope with the smaller and larger situations of the received signal; and the counterattack link loads a complex format signal data file which is processed by the civil electronic countermeasure software, generates and outputs a radio frequency low-power signal, and can output a plurality of signals with different frequencies at the same time in different channels. In link design, the counterattack link adds backup tunnels to drive backup throttling, each tunnel adding a monitoring port to synchronize output signals to the defending link.
4. An electronic countermeasure technology suitable for civil fields according to claim 1 and claim 2, characterized in that the civil electronic countermeasure software performs control of a reception channel by the defending unit, and involves channel selection of the broadband common antenna, channel configuration of the defending link, and the like. The defending unit captures the countermeasure target communication signal through frequency band scanning, further completes target feature analysis through steps of carrier frequency estimation, frequency spectrum distribution statistics, bandwidth measurement, time domain analysis and the like, and outputs a target feature result. When the guard unit executes the monitoring process of the pressing process, the guard unit counts the time domain distribution of the countermeasures communication signals and the counterattack link output signals through high-speed scanning processing in the intermediate frequency bandwidth for a plurality of times, distinguishes the signals with the same frequency and different rules by different colors, completes the comparison of the two signals based on the same-frequency analysis mechanism, and outputs the comparison result so as to adjust the parameters of the in-use 'simulation' signal data file, wherein the purpose of adjusting the parameters is to realize the high 'simulation'; the civil electronic countermeasure software generates a required 'simulation' signal data file through the simulation signal library according to the target feature analysis result completed by the defending unit, and further completes the control of a transmitting channel through the counterattack unit, including the selection of the signal data file, the configuration of the number of channels, the setting of pressing frequency, the setting of gain and output power, the control of a transmitting switch and the like, and finally completes the transmission to realize the application of a 'simulation' signal mode.
5. An electronic countermeasure technique for civil use according to claim 1 and claim 2, wherein the active transmitting antenna is connected to a corresponding channel of the counterattack link, and the input radio frequency low-power signal is power-amplified and radiated by the transmitting antenna to perform target suppression; the broadband common antenna is connected with the corresponding channel of the defending link when in detection application, the amplifying channel corresponds to the low-noise mode of the defending link, and the direct channel corresponds to the large-signal mode of the defending link. The broadband common antenna is connected with the standby broadband power amplifier in the pressing application and uses a through channel of the broadband common antenna; and the standby broadband power amplifier is connected with the standby channel of the impact link during standby pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310497479.3A CN116776534A (en) | 2023-05-05 | 2023-05-05 | Electronic countermeasure technology suitable for civil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310497479.3A CN116776534A (en) | 2023-05-05 | 2023-05-05 | Electronic countermeasure technology suitable for civil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116776534A true CN116776534A (en) | 2023-09-19 |
Family
ID=87991912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310497479.3A Pending CN116776534A (en) | 2023-05-05 | 2023-05-05 | Electronic countermeasure technology suitable for civil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116776534A (en) |
-
2023
- 2023-05-05 CN CN202310497479.3A patent/CN116776534A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10256940B2 (en) | Systems and methods for radio frequency hopping communications jamming utilizing software defined radio platforms | |
| Cheng et al. | Wsn07-1: Adjacent channel interference in dual-radio 802.11 a nodes and its impact on multi-hop networking | |
| US8509838B2 (en) | User equipment apparatus for simultaneously transmitting signals via a plurality of wireless communication chips to which different wireless communication schemes are applied and method for controlling transmission power thereof | |
| US20120058729A1 (en) | Apparatus and Method of Generating Quiet Zone by Cancellation-Through-Injection Techniques | |
| CN110554618B (en) | Communication system simulation method based on radar darkroom | |
| Riihonen et al. | Tactical communication link under joint jamming and interception by same-frequency simultaneous transmit and receive radio | |
| CN1236528A (en) | Cellular communications firewall | |
| Valenta et al. | Towards cognitive radio networks: Spectrum utilization measurements in suburb environment | |
| CN106487417B (en) | The white frequency spectrum jamproof system of TV based on WiFi chip | |
| CN114726384A (en) | Switching circuit of antenna and electronic equipment | |
| Rebato et al. | Stochastic geometric coverage analysis in mmWave cellular networks with a realistic channel model | |
| CN105891799A (en) | Active jamming reconnaissance method suitable for mechanical scanning radars | |
| CN107359958B (en) | Frequency agility intelligence jammer | |
| CN113640765A (en) | Radar detection method based on communication base station, object positioning method and base station | |
| KR102295191B1 (en) | HILS(Hardware In Loop Simulation) system for Radar deception apparatus and simulation method thereof | |
| CN116776534A (en) | Electronic countermeasure technology suitable for civil field | |
| CN112367142A (en) | Interference signal generating device | |
| CN114755638B (en) | Target protection system and method with angle deception function | |
| CN112769451B (en) | Information transmission/reception control method, information transmission/reception control device, electronic apparatus, and storage medium | |
| CN112910486B (en) | Information transmission/reception control method, information transmission/reception control device, electronic apparatus, and storage medium | |
| Ping et al. | Simulation analysis on co-site interference of vehicular digital communication system based on IM prediction method by BER | |
| KR102541471B1 (en) | Simulation Apparatus and Method of Frequency Hopping Radio Communication System reflecting Hop SNR | |
| CN114629511B (en) | Signal processing method of phased array antenna integrating same-frequency receiving and transmitting | |
| Marin | Full-Duplex Transceiver Inspired by Frequency-Modulated Continuous-Wave Radar | |
| KR20180092569A (en) | Apparatus for measuring multi-band pimd |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |