CN204614445U - A kind of subsonics identification compact system - Google Patents
A kind of subsonics identification compact system Download PDFInfo
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- CN204614445U CN204614445U CN201520237904.6U CN201520237904U CN204614445U CN 204614445 U CN204614445 U CN 204614445U CN 201520237904 U CN201520237904 U CN 201520237904U CN 204614445 U CN204614445 U CN 204614445U
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Abstract
The utility model proposes a kind of subsonics identification compact system, comprise terminal control center, monitoring receiver, subsonics identification module, base band sources, radio-frequency (RF) excited device, power amplifier and antenna.Subsonics identification module accessible site is in described terminal control center.Subsonics identification module comprises demodulation module, bandpass filtering modules block, digital subsonics identification module, simulation subsonics identification module, simulation subsonics identification module and digital subsonics identification module need to inquire about the standard subsonics frequency table stored in identifying, also according to embody rule, only simulation subsonics identification module or digital subsonics identification module can be selected.Avoid in radio monitoring work, the conventional compact system without subsonics recognition function effectively cannot be suppressed using the illegal signals with the device transmission of subsonics function, more adapts to and meets requirements of one's work.
Description
Technical field
The utility model relates to radio art, particularly a kind of subsonics identification compact system.
Background technology
At present, subsonics technology is widely used in intercom system.The infrasonic used in intercom system is divided into again simulation infrasonic and digital subsonics code two kinds.Subsonics is equivalent to a kind of cryptographic means, and launch party adds a kind of infrasonic frequency when transmission of audio, and take over party is by identifying whether the infrasonic frequency of launch party mates with the infrasonic frequency value of the machine setting, judges whether to receive the signal from transmit leg.If the infrasonic frequency that the infrasonic frequency of launch party is arranged with the machine mates, then open loudspeaker, receive the signal from transmit leg; If the infrasonic frequency that the infrasonic frequency of launch party is arranged with the machine does not mate, then can not receive the signal from transmit leg.
In radio monitoring work, conventional compact system does not have subsonics recognition function, if illegal signals uses the device transmission with subsonics function, then can not carry out effective compacting to illegal signals, thus can not meet completely and adapt to requirements of one's work.
Summary of the invention
The utility model proposes a kind of subsonics identification compact system for the problems referred to above, concrete technical scheme is as follows: a kind of subsonics identification compact system, comprises terminal control center, monitoring receiver, subsonics identification module, base band sources, radio-frequency (RF) excited device, power amplifier and antenna.
Terminal control center is connected with monitoring receiver, subsonics identification module, base band sources respectively; Monitoring receiver and subsonics identification module and the two-way communication of terminal control center, monitoring receiver transmitting terminal is connected with antenna; Terminal control center, base band sources, radio-frequency (RF) excited device, power amplifier are connected with antenna order; Terminal control center produces digital interference signal data, after outputting to base band sources process, the middle frequency interference signal of generating strap modulation, middle frequency interference signal is converted to required frequency range by radio-frequency (RF) excited device, after power amplifier amplifies, by aerial radiation to target jamming region.
Subsonics identification module accessible site is in described terminal control center.
Subsonics identification module comprises demodulation module, bandpass filtering modules block, digital subsonics identification module, simulation subsonics identification module; The subsonics information recognized is outputted to demodulation module by monitoring receiver, and demodulation module is connected with bandpass filtering modules block, and bandpass filtering modules block connects digital subsonics identification module and simulation subsonics identification module respectively.
Numeral subsonics identification module and simulation subsonics identification module have prestored digital subsonics code value and the simulation subsonics frequency of standard respectively.
Numeral subsonics identification module and simulation subsonics identification module support that user adds non-standard frequency.
Simulation subsonics identification module and digital subsonics identification module need to inquire about the standard subsonics frequency table stored in identifying.Also according to embody rule, only simulation subsonics identification module or digital subsonics identification module can be selected.Avoid in radio monitoring work, the conventional compact system without subsonics recognition function effectively cannot be suppressed using the illegal signals with the device transmission of subsonics function, more adapts to and meets requirements of one's work.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the intelligent compact system that subsonics identification module independently uses.
Fig. 2 is the structural drawing that subsonics identification module is integrated in the intelligent compact system at terminal control center.
Fig. 3 is subsonics identification module cut-away view.
Embodiment
Subsonics identification compact system is integrated with subsonics identification module, supports the encoding and decoding of standard/non-standard simulation infrasonic and standard digital subsonics code, can suppress fast and effectively, extend the function of compact system to the intercom system with subsonics function.Below in conjunction with accompanying drawing, application example is described in further detail.
As shown in Figure 1, subsonics identification compact system comprises terminal control center, monitoring receiver, subsonics identification module, base band sources, radio-frequency (RF) excited device, power amplifier and antenna.Wherein, terminal control center realizes the control to whole system, and monitoring receiver analyzes suspicious or illegal signals for detecting; Subsonics identification module realizes subsonics recognition function, subsonics identification compact system can manual presetting neutralizing target signal frequency parameter, also can target acquisition signal frequency parameter automatically, evaluating objects signal characteristic, automatically generates close signal and suppresses echo signal.
Terminal control center is connected with monitoring receiver, subsonics identification module, base band sources respectively; Subsonics identification module can be an independently functional module, by data-interface and terminal control center to center communications.Monitoring receiver and subsonics identification module and the two-way communication of terminal control center, monitoring receiver transmitting terminal is connected with antenna; Terminal control center, base band sources, radio-frequency (RF) excited device, power amplifier are connected with antenna order; Terminal control center produces digital interference signal data, after outputting to base band sources process, the middle frequency interference signal of generating strap modulation, middle frequency interference signal is converted to required frequency range by radio-frequency (RF) excited device, after power amplifier amplifies, by aerial radiation to target jamming region.
As shown in Figure 2, for subsonics identification module with the mode of functional module and terminal control center integrated.The two-way communication of terminal control center and monitoring receiver, monitoring receiver transmitting terminal is connected with antenna; Terminal control center, base band sources, radio-frequency (RF) excited source, power amplifier are connected with antenna order.
Subsonics identification compact system adopts radiotelegraphy, produces digital interference signal data, by interface, data are delivered to base band sources process by terminal control center, and the middle frequency interference signal of generating strap modulation exports.This intermediate-freuqncy signal is converted to required frequency range by radio-frequency (RF) excited device, after power amplifier amplifies, by the aerial radiation of high-gain to target jamming region.
As shown in Figure 3, be the cut-away view of subsonics identification module.Subsonics identification module is made up of demodulation module, bandpass filtering modules block, digital subsonics identification module, simulation subsonics identification module.The subsonics information recognized is outputted to demodulation module by monitoring receiver, and demodulation module is connected with bandpass filtering modules block, and bandpass filtering modules block connects digital subsonics identification module and simulation subsonics identification module respectively.Subsonics identification module has prestored the simulation infrasonic frequency of standard and digital subsonics code value, and supports that user adds non-standard frequency.Simulation subsonics identification module and digital subsonics identification module need to inquire about the standard subsonics frequency table stored in identifying.Also according to embody rule, only simulation subsonics identification module or digital subsonics identification module can be selected.The I/Q signal data being input as monitoring receiver collection of subsonics identification module, process in units of frame, export the subsonics information recognized.
Claims (5)
1. a subsonics identification compact system, is characterized in that: comprise terminal control center, monitoring receiver, subsonics identification module, base band sources, radio-frequency (RF) excited device, power amplifier and antenna;
Terminal control center is connected with monitoring receiver, subsonics identification module, base band sources respectively; Monitoring receiver and subsonics identification module and the two-way communication of terminal control center, monitoring receiver transmitting terminal is connected with antenna; Terminal control center, base band sources, radio-frequency (RF) excited device, power amplifier are connected with antenna order; Terminal control center produces digital interference signal data, after outputting to base band sources process, the middle frequency interference signal of generating strap modulation, middle frequency interference signal is converted to required frequency range by radio-frequency (RF) excited device, after power amplifier amplifies, by aerial radiation to target jamming region.
2. subsonics identification compact system according to claim 1, is characterized in that described subsonics identification module is integrated in described terminal control center.
3. subsonics identification compact system according to claim 1 and 2, is characterized in that, described subsonics identification module comprises demodulation module, bandpass filtering modules block, digital subsonics identification module, simulation subsonics identification module; The subsonics information recognized is outputted to demodulation module by monitoring receiver, and demodulation module is connected with bandpass filtering modules block, and bandpass filtering modules block connects digital subsonics identification module and simulation subsonics identification module respectively.
4. subsonics identification compact system according to claim 3, is characterized in that, described digital subsonics identification module and simulation subsonics identification module have prestored digital subsonics code value and the simulation subsonics frequency of standard respectively.
5. subsonics identification compact system according to claim 3, is characterized in that, described digital subsonics identification module and simulation subsonics identification module support that user adds non-standard frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520237904.6U CN204614445U (en) | 2015-04-20 | 2015-04-20 | A kind of subsonics identification compact system |
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| CN201520237904.6U CN204614445U (en) | 2015-04-20 | 2015-04-20 | A kind of subsonics identification compact system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795075A (en) * | 2015-04-20 | 2015-07-22 | 成都大公博创信息技术有限公司 | Subsonic recognizing and suppressing system and recognition method thereof |
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2015
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795075A (en) * | 2015-04-20 | 2015-07-22 | 成都大公博创信息技术有限公司 | Subsonic recognizing and suppressing system and recognition method thereof |
| CN104795075B (en) * | 2015-04-20 | 2018-10-23 | 成都大公博创信息技术有限公司 | A kind of subsonics identification compact system and its recognition methods |
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