CN108183766A - It is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device - Google Patents
It is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device Download PDFInfo
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- CN108183766A CN108183766A CN201810122465.2A CN201810122465A CN108183766A CN 108183766 A CN108183766 A CN 108183766A CN 201810122465 A CN201810122465 A CN 201810122465A CN 108183766 A CN108183766 A CN 108183766A
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- 238000004458 analytical method Methods 0.000 claims abstract description 60
- 238000012544 monitoring process Methods 0.000 claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 31
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 16
- 230000002452 interceptive effect Effects 0.000 claims abstract description 11
- 238000001228 spectrum Methods 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 26
- 230000003321 amplification Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 238000003491 array Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 238000010183 spectrum analysis Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 2
- 230000004069 differentiation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
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- 230000007246 mechanism Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/822—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by detecting the presence of a surveillance, interception or detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/827—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection using characteristics of target signal or of transmission, e.g. using direct sequence spread spectrum or fast frequency hopping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
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Abstract
The present invention relates to it is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device, including radiofrequency signal selecting unit, signal search module, signal analysis module sum aggregate control processing unit, the collection control processing unit includes sequentially connected signal discrimination module, signal control module and signal identification module；The signal search module connects the radiofrequency signal selecting unit, signal control module and signal discrimination module；The signal analysis module connects the radiofrequency signal selecting unit, signal control module and signal identification module；The signal control module connects interference signal generation module.The device can implement radio interference within the shortest time for finding illegal signals, prevent information unofficial biography in time, realize optimum jamming effect using monitoring and interfering Integrated Architecture.
Description
Technical field
The present invention relates to radio monitorings and electronic countermeasure field, and in particular to it is a kind of anti-monitor, it is counter take on the sly, anti-burst type
Transmiter device.
Background technology
According to《State Security Law of the People's Republic of China detailed rules for the implementation》(on May 10th, 1994 hair of State Council Decree the 157th
Cloth) Article 20 regulation, dedicated spy's equipment is broadly divided into four classes：The first kind is concealed type eavesdropping, equipment of photographing secretly；Second class
It is the transceiver of burst type, disposal password sheet and secret writes tool；Third class is the electronic eavesdropping and prison for collect intelligence
Listen equipment；4th class is other special spy's equipment.
In the important closed security zone of the departments such as various enemy spies, hostile element are a member of a political party, political affairs, army, foreign affairs, with artificial concealment carry or
Fixed hidden mounting means using eavesdropping, steal and spies' equipment such as clap, steal momentous conference, the language of talks, image information and again
Fileinfo is wanted, the radio emission function having using equipment is transferred to overseas people by its real-time Transmission or afterwards (when selecting)
Member；Or information is being sent using spies' equipment such as burst type transmiters afterwards, serious threat national security.
Since the frequency of such spy's radio component parts is not provided to set by National Radio administrative department, optional frequency range model
Non- constant width is enclosed, the parameters such as frequency, the modulation type of signal are self-defined, and the difficulty of detecting and identification is very big；Meanwhile this kind of signal
Amplitude it is very faint toward contact, the pulsewidth of particularly burst type transmiter is very short, and arteries and veins spacing very little, message can pass quickly, together
When tranmitting frequency (not by the telegram working frequency of radio control agencies dictate) also can be arbitrarily set, so with very high guarantor
Close property, it is difficult to find, intercept and capture and dispose, it must could be scouted, intercept and capture and analyzed and processed using special technology equipment.
It is existing application No. is 201510449418.5, a kind of entitled anti-China's application for monitoring anti-monitoring device of application is special
Profit, which disclose it to include：Central processing unit, controller, liquid crystal display, wireless signal acquisition device, electronic signal are done
Device, signal detection switch, signal interference switch and equipment master switch are disturbed, signal detection switch, signal interference switch and equipment are total
Switch is connect respectively with the input terminal of controller；Controller is bi-directionally connected with central processing unit；Wireless signal acquisition device and center
Processor is bi-directionally connected；The output terminal of disturbance of electronic signal device and central processing unit connects；Liquid crystal display and controller it is defeated
Outlet connects.The equipment can accomplish accurately to find out the position for monitoring supervision equipment, so as to effectively be extractd, it is ensured that required row
Look into the Environmental security of area of space；The monitoring supervision equipment that can not be extractd can be accomplished to interfere its work, make its recording record
As invalid, it is ensured that the safety of the height confidential session content such as enterprise, documentation etc..
This is counter to monitor anti-monitoring device and is although provided simultaneously with monitoring and interference function, but there are still the serious of following several respects
Defect：
(1) equipment does not have trigger-type linkage interference function, this is so that it can not automatic within hundreds of ms times, timely
Ground interference block it has been found that short-term burst signal (such as the file of compression, the photograph of stealing spies' equipment such as bat, burst type transmiter
Sheet data) transmitting transmission (transmission time is most only 2~3 seconds short)；
(2) equipment is using white Gaussian noise signal interference voice, picture signal, and modern more advanced spy's equipment one
As all using digital modulation modes such as ASK, FSK, PSK and OFDM come the voice of modulation transmissions, image data, signal it is anti-interference
Very capable, white Gaussian noise is extremely difficult to expected interference effect；
(3) equipment is not to be designed by real-time monitor with the framework of managing and control system and function, is not implemented and maintains secrecy to emphasis
Region uninterrupted, automation the detecting and management and control of 7 × 24 hours.
Invention content
The technical problems to be solved by the invention be to provide it is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device, this
Device can implement radio interference, in time using monitoring and interfering Integrated Architecture within the shortest time for finding illegal signals
Information unofficial biography are prevented, realize optimum jamming effect.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
It is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device, including radiofrequency signal selecting unit, signal search mould
Group, signal analysis module sum aggregate control processing unit, the collection control processing unit include sequentially connected signal discrimination module, signal
Control module and signal identification module；The signal search module connects the radiofrequency signal selecting unit, signal control module
With signal discrimination module；The signal analysis module connects the radiofrequency signal selecting unit, signal control module and signal and knows
Other module；The signal control module connects interference signal generation module；
The radiofrequency signal selecting unit, for being selected according to the geographical location information and Radio Signal Frequency that need to be detected
Corresponding radio frequency input channel, and it is output to signal search module and signal analysis module simultaneously after work(point；
The signal control module, for the signal search received work order to be sent to signal search module；
The signal search module, for the signal search work order that is sent out according to signal control module to described wireless
Electric signal carries out being down-converted to analog intermediate frequency signal, and handle analog intermediate frequency signal, obtain frequency domain data and be output to
Signal discrimination module；
The signal discrimination module, for carrying out spectrum analysis and signal extraction to frequency domain data, and by the signal of extraction
It is compared with default legal signal, judges whether questionable signal, when there are during questionable signal, by the questionable signal information
It is sent to signal control module；
The signal control module is additionally operable to generate analysis work order according to the questionable signal information of reception, and send
Give signal analysis module；
The signal analysis module, for putting frequency according to the analysis work order of reception, and to the frequency-fixed signal of acquisition
It carries out being down-converted to analog intermediate frequency signal, and handle analog intermediate frequency signal, obtains the zero intermediate frequency frequency domain of the frequency-fixed signal
Data are simultaneously output to signal identification module；
The signal identification module is analyzed for the zero intermediate frequency frequency domain data to the frequency-fixed signal, is identified and non-
Method signal is judged, and obtains the parameter information of illegal signals, and exports the parameter informations of the illegal signals to signal control module；
The signal control module is additionally operable to generate interference work order according to the parameter information of the illegal signals of reception,
And it is sent to interference signal generation module；
The interference signal generation module, for identical with illegal signals parameter information according to interference work order generation
Interference signal interferes illegal signals.
The beneficial effects of the invention are as follows：
(1) there is powerful signal search and analysis ability：For transmitting signal in " burst, when short, low transmitting power,
The features such as strong antijamming capability ", the present invention devise dual channel system framework, realize high speed, low noise, big bandwidth and Larger Dynamic
Signal search discovery feature and signal analysis and identification function serial/parallel row working mechanism, i.e., by signal search module and signal
Discrimination module carries out full band scan monitoring and the search of illegal signals is found, will be further after doubtful illegal signals are found
Signal analysis and identification task give by signal analysis module and signal identification module completion, signal analysis module by signal to being searched
The doubtful signal that rope module finds and specifies is analyzed, is identified, demodulating and decoding and record；At the same time, signal search module
Continue spectrum monitoring and signal search work, prevent from missing other illegal signals, it is continual so as to have system
Illegal signals monitor ability of discovery and disposing capacity.This serial/parallel row cooperative mechanism is greatly improved to illegal signals
Discovery, identification and disposal efficiency, improve to the intercept probabilities of illegal signals and disposition timeliness, effectively reduce leakage and cut a rate.
(2) it by interference signal generation module, can be generated within the shortest time for finding illegal signals and illegal signals frequency
The interference signal of the match parameters such as rate, bandwidth, modulating mode implements radio interference, realizes optimum jamming effect, hinders in time
Only information unofficial biography.
(3) the monitoring sweep speed of the present apparatus reaches 50GHz/s (high speed detection pattern) or 20GHz/s (fine monitoring moulds
Formula) more than, analysis time about 300ms, monitoring+analysis time is less than 420ms (high speed detection pattern) or 600ms (fine monitorings
Pattern), the disturbance response time (from interference instruction is sent out to the total time for launching interference signal) less than 400ms, so can be
Eavesdropping is prevented in 820ms (high speed detection pattern) or longest 1s (fine monitoring pattern), steals the non-musical instruments used in a Buddhist or Taoist mass such as bat, burst type transmiter
The wireless data transmission of material, 1 pictures, the data transmission of 1 file are general using most fast data transmission equipment, burst type telegraph
Also it needs 2~3 seconds or more, so the discovery of the present apparatus+blocking aging performance can meet application requirement.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the radiofrequency signal selecting unit is one electronic switch of multiselect and one-to-two power splitter being connected；
Further, the signal search module includes the search down-converter unit being connected and search signal processing unit；
Described search down-converter unit includes sequentially connected preamplifier, bandpass filter, frequency mixer, low-pass filtering
Device, intermediate frequency amplifier and intermediate-frequency filter；
The preamplifier, for carrying out low noise amplification to the radio signal；
The bandpass filter, for filtering by the out of band signal outside preposition amplified required frequency range；
The frequency mixer for being mixed to the radio signal after filtered, obtains analog intermediate frequency signal；
The low-pass filter, for the analog intermediate frequency signal carry out low-pass filtering, filter intermediate frequency maximum frequency with
On signal；
The intermediate frequency amplifier, for being amplified to filtered analog intermediate frequency signal；
The intermediate-frequency filter for carrying out intermediate frequency filtering to the analog intermediate frequency signal, is filtered in addition to intermediate-frequency bandwidth
Other signals；
Described search signal processing unit includes sequentially connected A/D converter, FPGA processor and digital down converter；
The A/D converter, for the amplified analog intermediate frequency signal to be converted to digital intermediate frequency signal；
The FPGA processor for carrying out FFT transform to the digital intermediate frequency signal, realizes signal from time domain to frequency domain
Conversion, obtain intermediate frequency spectrum data；
The digital down converter for carrying out down coversion operation to the intermediate frequency spectrum data for specifying signal, obtains signal
Zero intermediate frequency frequency spectrum data.
Further, the signal analysis module includes the analysis down-converter unit being connected and signal Analysis processing unit；
The analysis down-converter unit includes sequentially connected preamplifier, bandpass filter, frequency mixer, low-pass filtering
Device, intermediate frequency amplifier and intermediate-frequency filter；
The preamplifier, for carrying out low noise amplification to the radio signal；
The bandpass filter, for filtering by the out of band signal outside preposition amplified required frequency range；
The frequency mixer for being mixed to the radio signal after filtered, obtains analog intermediate frequency signal；
The low-pass filter, for the analog intermediate frequency signal carry out low-pass filtering, filter intermediate frequency maximum frequency with
On signal；
The intermediate frequency amplifier, for being amplified to filtered analog intermediate frequency signal；
The intermediate-frequency filter for carrying out intermediate frequency filtering to the analog intermediate frequency signal, is filtered in addition to intermediate-frequency bandwidth
Other signals；
The signal Analysis processing unit includes sequentially connected A/D converter, FPGA processor and digital down converter；
The A/D converter, for the amplified analog intermediate frequency signal to be converted to digital intermediate frequency signal；
The FPGA processor for carrying out FFT transform to the digital intermediate frequency signal, realizes signal from time domain to frequency domain
Conversion, obtain intermediate frequency spectrum data；
The digital down converter for carrying out down coversion operation to the intermediate frequency spectrum data for specifying signal, obtains signal
Zero intermediate frequency frequency spectrum data.
Further, the parameter information of the illegal signals includes I TU parameters, modulating mode, demodulating and decoding data and IQ numbers
According to.
Further, the interference signal generation module includes digital frequency synthesizer, upconverter, power amplifier and band
Bandpass filter；
The digital frequency synthesizer for generating the baseband signal identical with illegal signals parameter information, and is transferred to
Upconverter；
The upconverter for baseband signal to be converted to the frequency point identical with illegal signals, obtains and illegal signals
Parameter has the random interfering signal of correlation and is transferred to power amplifier；
The power amplifier for carrying out power amplification to the random interfering signal from upconverter, and is transferred to
Bandpass filter；
The bandpass filter, for filtering the other signals except the random interfering signal from power amplifier, and
Transmitting antenna is output to, illegal signals are interfered.
Further, communication unit is further included, the communication unit connection collection controls processing unit and host computer.
Further, the storage unit connected with the collection control processing unit is further included, for storing default legal signal number
According to, the frequency spectrum of legal signal spectrum mask, illegal signals, I TU parameters, I/Q data and demodulating and decoding information, convenient for ex-post analysis
And verification.
Further, distributed monitoring antenna array and distributed interferometric antenna arrays, the distributed monitoring antenna array are further included
Connect radiofrequency signal selecting unit；The distribution interferometric antenna arrays connection interference signal generation module.
Further, hand-held direction-finder antenna, the hand-held direction-finder antenna connection radiofrequency signal selecting unit are further included.
Advantageous effect using above-mentioned further scheme is：With certain direction finding, positioning and search capacity：Due to using
Distributed monitoring antenna array is disposed in monitored protection zone multiple spot, and when detecting finds doubtful signal, skill is positioned using field strength
Art can substantially measure orientation where signal, then using hand-held direction-finder antenna, can carry out amplitude-comprised direction-finding to illegal equipment signal source
It is searched with approaching.
Description of the drawings
Fig. 1 is principle of the invention block diagram；
Fig. 2 is radiofrequency signal selecting unit functional block diagram of the present invention；
Fig. 3 is present invention search down-converter unit and analysis down-converter unit functional block diagram；
Fig. 4 handles unit functional block diagram for present invention search signal processing unit and signal Analysis；
Fig. 5 is interference signal generation module functional block diagram of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As shown in Figures 1 to 5, the present invention in order to monitor and interfere be a member of a political party, political affairs, army, the important security areas of departments such as foreign affairs
The illegal equipment that confidential information (including sound, image, video, file etc.) is obtained with hidden, automated manner (including eavesdropping, is stolen
Bat, burst type transmiter etc.) radio transit signal (including real-time Transmission or subsequent transmission mode), provide a kind of anti-prison
Listen, it is counter take on the sly, anti-burst type transmiter device, including radiofrequency signal selecting unit, signal search module, signal analysis module and
Collection control processing unit, the collection control processing unit, which includes sequentially connected signal discrimination module, signal control module and signal, to be known
Other module；The signal search module connects the radiofrequency signal selecting unit, signal control module and signal discrimination module；Institute
It states signal analysis module and connects the radiofrequency signal selecting unit, signal control module and signal identification module；The signal control
Molding block connects interference signal generation module；
The radiofrequency signal selecting unit includes one electronic switch of multiselect being connected and one-to-two power splitter, for basis
The geographical location that need to be detected and Radio Signal Frequency select corresponding radio frequency input channel and after work(point while are output to
Search for down-converter unit and analysis down-converter unit；
The signal control module, for the signal search received work order to be sent to signal search module；
The signal search module is used for according to the signal search work order that signal control module is sent out to described wireless
Electric signal carries out being down-converted to analog intermediate frequency signal, and handle analog intermediate frequency signal, obtain frequency domain data and be output to
Signal discrimination module；It includes the search down-converter unit being connected and search signal processing unit；
Described search down-converter unit includes sequentially connected preamplifier, bandpass filter, frequency mixer, low-pass filtering
Device, intermediate frequency amplifier and intermediate-frequency filter；
The preamplifier, for carrying out low noise amplification to the radio signal；
The bandpass filter, for filtering by the out of band signal outside preposition amplified required frequency range；
The frequency mixer for being mixed to the radio signal after filtered, obtains analog intermediate frequency signal；
The low-pass filter, for the analog intermediate frequency signal carry out low-pass filtering, filter intermediate frequency maximum frequency with
On signal；
The intermediate frequency amplifier, for being amplified to filtered analog intermediate frequency signal；
The intermediate-frequency filter for carrying out intermediate frequency filtering to the analog intermediate frequency signal, is filtered in addition to intermediate-frequency bandwidth
Other signals；
Described search signal processing unit includes sequentially connected A/D converter, FPGA processor and digital down converter；
The A/D converter, for the amplified analog intermediate frequency signal to be converted to digital intermediate frequency signal；
The FPGA processor for carrying out FFT transform to the digital intermediate frequency signal, realizes signal from time domain to frequency domain
Conversion, obtain intermediate frequency spectrum data；
The digital down converter for carrying out down coversion operation to the intermediate frequency spectrum data for specifying signal, obtains signal
Zero intermediate frequency frequency spectrum data.
The signal discrimination module, for carrying out spectrum analysis and signal extraction to frequency domain data, and by the signal of extraction
It is compared with default legal signal, judges whether questionable signal, when there are during questionable signal, by the questionable signal information
It is sent to signal control module；
The signal control module is additionally operable to generate analysis work order according to the questionable signal information of reception, and send
Give signal analysis module；
The signal analysis module, for putting frequency according to the analysis work order of reception, and to the frequency-fixed signal of acquisition
It carries out being down-converted to analog intermediate frequency signal, and handle analog intermediate frequency signal, obtains the zero intermediate frequency frequency domain of the frequency-fixed signal
Data are simultaneously output to signal identification module；The signal analysis module includes the analysis down-converter unit and signal Analysis that are connected
Processing unit；
The analysis down-converter unit includes sequentially connected preamplifier, bandpass filter, frequency mixer, low-pass filtering
Device, intermediate frequency amplifier and intermediate-frequency filter；
The preamplifier, for carrying out low noise amplification to the radio signal；
The bandpass filter, for filtering by the out of band signal outside preposition amplified required frequency range；
The frequency mixer for being mixed to the radio signal after filtered, obtains analog intermediate frequency signal；
The low-pass filter, for the analog intermediate frequency signal carry out low-pass filtering, filter intermediate frequency maximum frequency with
On signal；
The intermediate frequency amplifier, for being amplified to filtered analog intermediate frequency signal；
The intermediate-frequency filter for carrying out intermediate frequency filtering to the analog intermediate frequency signal, is filtered in addition to intermediate-frequency bandwidth
Other signals；
The signal Analysis processing unit includes sequentially connected A/D converter, FPGA processor and digital down converter；
The A/D converter, for the amplified analog intermediate frequency signal to be converted to digital intermediate frequency signal；
The FPGA processor for carrying out FFT transform to the digital intermediate frequency signal, realizes signal from time domain to frequency domain
Conversion, obtain intermediate frequency spectrum data；
The digital down converter for carrying out down coversion operation to the intermediate frequency spectrum data for specifying signal, obtains signal
Zero intermediate frequency frequency spectrum data.
The signal identification module is analyzed for the zero intermediate frequency frequency domain data to the frequency-fixed signal, is identified and non-
Method signal is judged, and obtains the parameter information of illegal signals, and the parameter information includes I TU parameters, modulating mode, demodulating and decoding
Data and I/Q data, and the parameter informations of the illegal signals is exported to signal control module；
The signal control module is additionally operable to generate interference work order according to the parameter information of the illegal signals of reception,
And it is sent to interference signal generation module；
The interference signal generation module, for generating the interference signal identical with illegal signals parameter information, to illegal
Signal is interfered.The interference signal generation module includes digital frequency synthesizer, upconverter, power amplifier and band logical
Wave filter；
The digital frequency synthesizer for generating the baseband signal identical with illegal signals parameter information, and is transferred to
Upconverter；
The upconverter for baseband signal to be converted to the frequency point identical with illegal signals, obtains and illegal signals
Parameter has the random interfering signal of correlation and is transferred to power amplifier；
The power amplifier for carrying out power amplification to the random interfering signal from upconverter, and is transferred to
Bandpass filter；
The bandpass filter, for filtering the other signals except the random interfering signal from power amplifier, and
Transmitting antenna is output to, illegal signals are interfered.
Communication unit is further included, the communication unit connection collection controls processing unit and host computer.Host computer is intelligence
Terminal, laptop, desktop computer or I PAD, the communication unit are wireless communication unit and/or Landline communication unit.
It, can be to by the existing monitoring management platform push monitoring in real time of protection unit by communication unit and corresponding IT policy
Frequency spectrum, signal analysis result, alarm, interference block the information such as result, realize uninterrupted to 7 × 24 hours of emphasis security areas
Detecting real-time and management and control.
In order to make the present apparatus that there is the automatic registering capacity of signal：Can record automatically the spectrogram of doubtful signal, I TU parameters,
Demodulating and decoding result and I/Q data support the relevant personnel to be further analyzed and judge afterwards, further include and the collection control
The storage unit of processing unit connection.
Further include distributed monitoring antenna array, distributed interferometric antenna arrays and hand-held direction-finder antenna, the distributed monitoring
Antenna array and hand-held direction-finder antenna are all connected with radiofrequency signal selecting unit；The distribution interferometric antenna arrays connection bandpass filtering
Device.The present invention is by deployment distributed monitoring, interferometric antenna arrays and host computer in by guard plot, and " spy's equipment is wireless for foundation
Electric signal tracks down system automatically in real time "；System is fully automatic working pattern, without human intervention, system is made to realize to being prevented
Region is protected in time domain, spatial domain and the seamless detecting real-time of frequency domain and protection.Due to being monitored using distributed monitoring antenna array
Protection zone multiple spot deployment, when detecting finds doubtful signal, signal place side can be substantially measured using field strength location technology
Position, then using hand-held direction-finder antenna, amplitude-comprised direction-finding can be carried out to illegal equipment signal source and approaches lookup.
To sum up, the major function that the present invention realizes：
(1) monitoring function
The electromagnetic environment of protected area is monitored and counted, and combines known registration station signal message generation and closes
Method signal spectrum template；High-velocity scanning detecting finds and detects doubtful spy's equipment radio signal；
Signal I TU parameter measurements, signal type Identification, demodulating and decoding judge illegal signals；
It automatically controls interference module device and disturbance suppression is carried out to illegal signals；
Field strength positioning is carried out, and carry out direction finding with handheld device and approach lookup to signal emitting-source；
Frequency spectrum, I TU parameters, demodulating and decoding result and I/Q data to signal record, and convenient for ex-post analysis and look into
Card；
The data managements such as common spy's equipment radio, registration station signal.
(2) interference function
According to the modulation type and parameter of disturbed signal, the interference base band sources of tool correlation are automatically generated；
Base band sources are interfered by up-conversion, power amplification, by potato masher antenna radiant output；
Jamming pattern diversification：Can broadband take place frequently and penetrate surely, also can narrow-band frequency-sweeping transmitting, adapt to different application demand；
Visualization interference transmitting can be carried out, finds to be disturbed interference signal when signal stops transmitting and also stops emitting；
The peak power output of each interference signal is 100W (multi-gear adjustable), can cover large and medium-sized work institute area's area；
Jamming equipment has automatic protection functions, prevents equipment equipment caused by improper use or environmental condition are unfavorable from damaging
It is bad.Therefore, the present invention realizes broadband signal high-velocity scanning, detecting, analysis and trigger-type interference block function.It is dry by monitoring
Disturb integrated technique framework so as to eavesdropping, steal the scanning of the radio signal that spies' equipment such as bats, burst type transmiter emits
Monitoring, analysis and identification and interference block etc. functions by collection control processing unit centralized management, scanning monitoring and analysis and identification function simultaneously
Row is carried out, and the jamming equipments such as signal source, frequency converter, power amplifier can be controlled to implement interference immediately after illegal transmitting signal is identified,
This just eliminates communication connection between the multisystem of separation, information exchange, equipment prepare to consume when processes generate, maximum limit
Improve to degree the working efficiency and timeliness of system.In order to improve to the intercept probability of illegal signals and disposition timeliness,
It effectively reduces leakage and cuts rate, the present invention devises dual channel system framework, realizes the letter of high speed, low noise, big bandwidth and Larger Dynamic
The serial/parallel row working mechanism of number search discovery feature and signal analysis and identification function, i.e., differentiated by signal search module and signal
Module carries out full band scan monitoring and the search of illegal signals is found, will further believe after doubtful illegal signals are found
Number analysis and identification task is given by signal analysis module and the completion of signal identification module, and signal analysis module is to by signal search mould
Group is found and the doubtful signal specified is analyzed, identified, demodulating and decoding and record；At the same time, signal search module continues
Spectrum monitoring and signal search work are carried out, prevents from missing other illegal signals, it is continual illegal so as to have system
Signal monitoring ability of discovery and disposing capacity.This serial/parallel row cooperative mechanism greatly improves the hair to illegal signals
Existing, identification and disposal efficiency are improved to the intercept probability of illegal signals and disposition timeliness, are effectively reduced leakage and are cut rate.And
The frequency synthesis time of search down-converter unit is less than 300 μ s, and scanning stepping bandwidth reaches 40MH, operand and time-consuming larger letter
The calculation process such as number FFT transform are completed in FPGA so that the search sweep speed of signal reaches 50GHz/s (high speed detection pattern)
Or more than 20GHz/s (fine monitoring pattern), analysis time about 300ms, monitoring+analysis time are less than 420ms (high speed detection moulds
Formula) or 600ms (fine monitoring pattern), the disturbance response time (from interference instruction is sent out to the total time for launching interference signal)
Less than 400ms, so eavesdropping can be prevented in 820ms (high speed detection pattern) or longest 1s (fine monitoring pattern), stolen and clapped, is prominent
The wireless data transmission of the illegal equipment such as hairdo transmiter, 1 pictures, the number biography that the data transmission use of 1 file is most fast are set
Standby, burst type telegraph generally also needs 2~3 seconds or more, is wanted so the discovery of the present apparatus+blocking aging performance can meet to apply
It asks.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. it is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that including radiofrequency signal selecting unit, believe
Number search module, signal analysis module sum aggregate control processing unit, it is described collection control processing unit include sequentially connected signal differentiation
Module, signal control module and signal identification module；The signal search module connects the radiofrequency signal selecting unit, signal
Control module and signal discrimination module；The signal analysis module connects the radiofrequency signal selecting unit, signal control module
With signal identification module；The signal control module connects interference signal generation module；
The radiofrequency signal selecting unit is corresponding for being selected according to the geographical location information and Radio Signal Frequency that need to be detected
Radio frequency input channel, and be output to signal search module and signal analysis module simultaneously after work(point；
The signal control module, for the signal search received work order to be sent to signal search module；
The signal search module, for the signal search work order that is sent out according to signal control module to the aerogram
It number carries out being down-converted to analog intermediate frequency signal, and handle analog intermediate frequency signal, obtains frequency domain data and be output to signal
Discrimination module；
The signal discrimination module, for carrying out spectrum analysis and signal extraction to frequency domain data, and by the signal of extraction and in advance
If legal signal is compared, questionable signal is judged whether, when there are during questionable signal, which is sent
Give signal control module；
The signal control module is additionally operable to generate analysis work order according to the questionable signal information of reception, and be sent to letter
Number analysis module；
The signal analysis module for putting frequency according to the analysis work order of reception, and carries out the frequency-fixed signal of acquisition
Analog intermediate frequency signal is down-converted to, and analog intermediate frequency signal is handled, obtains the zero intermediate frequency frequency domain data of the frequency-fixed signal
And it is output to signal identification module；
The signal identification module is analyzed, identified and is illegally believed for the zero intermediate frequency frequency domain data to the frequency-fixed signal
It number judges, obtains the parameter information of illegal signals, and export the parameter informations of the illegal signals to signal control module；
The signal control module is additionally operable to generate interference work order according to the parameter information of the illegal signals of reception, concurrently
Give interference signal generation module；
The interference signal generation module, for according to the interference work order generation interference identical with illegal signals parameter information
Signal interferes illegal signals.
2. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that the radio frequency
Signal behavior unit is one electronic switch of multiselect and one-to-two power splitter being connected.
3. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that the signal
Search module includes the search down-converter unit being connected and search signal processing unit；
Described search down-converter unit include sequentially connected preamplifier, bandpass filter, frequency mixer, low-pass filter,
Intermediate frequency amplifier and intermediate-frequency filter；
The preamplifier, for carrying out low noise amplification to the radio signal；
The bandpass filter, for filtering by the out of band signal outside preposition amplified required frequency range；
The frequency mixer for being mixed to the radio signal after filtered, obtains analog intermediate frequency signal；
The low-pass filter for carrying out low-pass filtering to the analog intermediate frequency signal, filters more than intermediate frequency maximum frequency
Signal；
The intermediate frequency amplifier, for being amplified to filtered analog intermediate frequency signal；
The intermediate-frequency filter for carrying out intermediate frequency filtering to the analog intermediate frequency signal, filters its in addition to intermediate-frequency bandwidth
Its signal；
Described search signal processing unit includes sequentially connected A/D converter, FPGA processor and digital down converter；
The A/D converter, for the amplified analog intermediate frequency signal to be converted to digital intermediate frequency signal；
The FPGA processor for carrying out FFT transform to the digital intermediate frequency signal, realizes that signal turns from time domain to frequency domain
It changes, obtains intermediate frequency spectrum data；
The digital down converter for carrying out down coversion operation to the intermediate frequency spectrum data for specifying signal, obtains the zero of signal
Intermediate frequency spectrum data.
4. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that the signal
Analysis module includes the analysis down-converter unit being connected and signal Analysis processing unit；
It is described analysis down-converter unit include sequentially connected preamplifier, bandpass filter, frequency mixer, low-pass filter,
Intermediate frequency amplifier and intermediate-frequency filter；
The preamplifier, for carrying out low noise amplification to the radio signal；
The bandpass filter, for filtering by the out of band signal outside preposition amplified required frequency range；
The frequency mixer for being mixed to the radio signal after filtered, obtains analog intermediate frequency signal；
The low-pass filter for carrying out low-pass filtering to the analog intermediate frequency signal, filters more than intermediate frequency maximum frequency
Signal；
The intermediate frequency amplifier, for being amplified to filtered analog intermediate frequency signal；
The intermediate-frequency filter for carrying out intermediate frequency filtering to the analog intermediate frequency signal, filters its in addition to intermediate-frequency bandwidth
Its signal；
The signal Analysis processing unit includes sequentially connected A/D converter, FPGA processor and digital down converter；
The A/D converter, for the amplified analog intermediate frequency signal to be converted to digital intermediate frequency signal；
The FPGA processor for carrying out FFT transform to the digital intermediate frequency signal, realizes that signal turns from time domain to frequency domain
It changes, obtains intermediate frequency spectrum data；
The digital down converter for carrying out down coversion operation to the intermediate frequency spectrum data for specifying signal, obtains the zero of signal
Intermediate frequency spectrum data.
5. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that it is described illegally
The parameter information of signal includes ITU parameters, modulating mode, demodulating and decoding data and I/Q data.
6. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that the interference
Signal generator module includes digital frequency synthesizer, upconverter, power amplifier and bandpass filter；
The digital frequency synthesizer for generating the baseband signal identical with illegal signals parameter information, and is transferred to change
Frequency device；
The upconverter for baseband signal to be converted to the frequency point identical with illegal signals, obtains and illegal signals parameter
Random interfering signal with correlation is simultaneously transferred to power amplifier；
The power amplifier for carrying out power amplification to the random interfering signal from upconverter, and is transferred to band logical
Wave filter；
The bandpass filter for filtering the other signals except the random interfering signal from power amplifier, and exports
To transmitting antenna, illegal signals are interfered.
7. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that further include logical
Believe unit, the communication unit connection collection controls processing unit and host computer.
8. it is according to claim 1 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that further include with
The storage unit of the collection control processing unit connection, for storing default legal signal data, legal signal spectrum mask, illegal
Frequency spectrum, ITU parameters, I/Q data and the demodulating and decoding information of signal, convenient for ex-post analysis and verification.
9. it is according to any one of claim 1 to 8 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, feature exists
In further including distributed monitoring antenna array and distributed interferometric antenna arrays, the distributed monitoring antenna array connects radiofrequency signal
Selecting unit；The distribution interferometric antenna arrays connection interference signal generation module.
10. it is according to claim 9 it is anti-monitor, it is counter take on the sly, anti-burst type transmiter device, which is characterized in that further include
Hand-held direction-finder antenna, the hand-held direction-finder antenna connection radiofrequency signal selecting unit.
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