CN204305018U - A kind of short wave communication adaptive frequency automatic acquisition and input system - Google Patents
A kind of short wave communication adaptive frequency automatic acquisition and input system Download PDFInfo
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- CN204305018U CN204305018U CN201420773301.3U CN201420773301U CN204305018U CN 204305018 U CN204305018 U CN 204305018U CN 201420773301 U CN201420773301 U CN 201420773301U CN 204305018 U CN204305018 U CN 204305018U
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Abstract
The utility model relates to a kind of short wave communication adaptive frequency automatic acquisition and input system, comprises the short-wave signal processing module for judging idle channel; For controlling the transmit-receive switch of radiofrequency signal on/off; For controlling the control circuit of transmit-receive switch short-wave signal process module state; For the power divider of power division.Also comprise the accessory of the necessity such as the feeder line for connecting each functional module.When the utility model can solve short-wave radio set adaptive communications, adaptive frequency selection blindly, incoming frequency process is loaded down with trivial details, causes the problem of the not good and manual operation complexity of communication efficiency.
Description
Technical field
The utility model relates to the hf adaptive communications field, particularly relates to a kind of short wave communication adaptive frequency automatic acquisition and input system.
Background technology
Short wave communication is a kind of means of communication being vulnerable to disturb, and round the clock, the change in season, the activity etc. of sunspot, all can impact ionosphere, thus causes the instability of signal transmission quality, produces interference and data transmission error etc.In order to select operating frequency that is best or near optimal to communicate in communication process, general employing frequency self-adaption technology.Frequency self-adaption technology is exactly the transmission quality of constantly monitoring short wave communication in communication process, selects frequency optimum traffic in real time or near real-time, short wave communication link is always remained on the good channel of transmission conditions.
Frequency for adaptive communications is by inserting radio station manually before short wave communication sets up link.This mode He Ne laser is random large, communication efficiency may be caused not good, even cannot successfully set up short wave communication link; And required frequency is counted many, operating personnel's intricate operation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of short wave communication adaptive frequency automatic acquisition and input system, to solve the deficiencies in the prior art.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of short wave communication adaptive frequency automatic acquisition and input system, comprise the PTT signal for receiving short-wave radio set, and export simultaneously be switched on or switched off transmit-receive switch control signal, control short-wave signal processing module and start or the control circuit of out-of-work control signal; Adjust with short-wave radio set RF mouth, short-wave radio set PTT and short-wave radio set sky and be connected, under controlling at control circuit, export the transmit-receive switch of short-wave signal to power divider; For receiving short-wave signal from transmit-receive switch, power division being carried out to it and exports the power divider of short-wave signal processing module to; Short-wave all-frequency band for exporting power divider carries out rapid scanning process and obtains idle channel, and result is exported to the short-wave signal processing module of short-wave radio set.
Described control circuit employing take LM317 as the integrated regulator of core.
Described short-wave signal processing module comprises the amplitude limit/filtering/amplifying circuit, analog-digital converter and the arm processor for carrying out filtering, amplitude measurement, restraint speckle process to signal that connect successively.
Described control circuit, transmit-receive switch, power divider, short-wave signal processing module are integrated in cabinet.
Compared with prior art, adopt the utility model of such scheme not only obtained more accurate for adaptive frequency, and self adaptation frequency can be inserted automatically, improve short wave communication link establishment speed, reduce the blindness of frequency selection and manually-operated triviality; The utility model structure is simple in addition, safe and reliable, without the need to changing broadcasting station structure, and strong adaptability.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model.
Fig. 2 is the structural representation of control circuit of the present utility model.
Fig. 3 is short-wave signal processing module structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See Fig. 1, the utility model provides a kind of short wave communication adaptive frequency automatic acquisition and input system, comprise the PTT signal for receiving short-wave radio set, and export simultaneously be switched on or switched off transmit-receive switch control signal, control short-wave signal processing module and start or the control circuit of out-of-work control signal; Adjust with short-wave radio set RF mouth, short-wave radio set PTT and short-wave radio set sky and be connected, under controlling at control circuit, export the transmit-receive switch of short-wave signal to power divider; For receiving short-wave signal from transmit-receive switch, power division being carried out to it and exports the power divider of short-wave signal processing module to; Short-wave all-frequency band for exporting power divider carries out rapid scanning process and obtains idle channel, and result is exported to the short-wave signal processing module of short-wave radio set; Also comprise the accessory of the necessity such as the feeder line for connecting each functional module.
Each functional module concrete function is as follows:
Control circuit, carries out electrical level match to input signal and output signal, realizes radio station PTT signal and controls transmit-receive switch and short-wave signal processing module duty object.See Fig. 2, control circuit is mainly the integrated regulator of core with LM317, can+5V the voltage of stable output.When radio station exports PTT high level signal
v pTT time, export+5V's
v out1 with
v out2 ,
v out1 control transmit-receive switch is connected,
v out2 control short-wave signal processing module to start working; When radio station exports PTT low level signal
v ' pTT time, export 0V's
v ' out1 with
v ' out2 ,
v ' out1 control transmit-receive switch disconnects,
v ' out2 control short-wave signal processor to quit work.
Transmit-receive switch, realizes disconnecting when radio station is launched being connected with the signal of power divider, for the protection of late-class circuit.It should have less insertion loss, such as, to reduce the impact on transmitting and receiving signal power, insertion loss≤0.5dB; Also should have larger power bearing ability, such as, bear power >=200W; Larger receive-transmit isolation should be had, such as receive-transmit isolation >=90dB simultaneously.
Power divider, by the signal adjusted from sky is divided into two-way, realizes power division, and does not affect the normal reception in radio station.
The signal processor that short-wave signal processing module is one is core with Digital Down Convert and ARM, mainly complete process and the output of short-wave signal, inner primary structure is see Fig. 3.Signal inputs from power divider, after amplitude limit/filtering/amplification, carries out analog-to-digital conversion.The A/D converter of 16, with 100Msps(sampling per second 1,000,000 times) to input signal sampling, then enter Digital Down Convert (DDC) and produce stable data flow.ARM carries out the process such as filtering, amplitude measurement, restraint speckle to data stream, obtains less, unappropriated 100 Frequency points of signal amplitude, is inputed in radio station by data port.
Above-mentioned each functional module can be integrated in a cabinet by integrated, build Portable integrated short wave communication adaptive frequency automatic acquisition and input system platform.
When the utility model can solve short-wave radio set adaptive communications, adaptive frequency selection blindly, incoming frequency process is loaded down with trivial details, causes the problem of the not good and manual operation complexity of communication efficiency.
Claims (4)
1. a short wave communication adaptive frequency automatic acquisition and input system, it is characterized in that: comprise the PTT signal for receiving short-wave radio set, and export simultaneously be switched on or switched off transmit-receive switch control signal, control short-wave signal processing module and start or the control circuit of out-of-work control signal; Adjust with short-wave radio set RF mouth, short-wave radio set PTT and short-wave radio set sky and be connected, under controlling at control circuit, export the transmit-receive switch of short-wave signal to power divider; For receiving short-wave signal from transmit-receive switch, power division being carried out to it and exports the power divider of short-wave signal processing module to; Short-wave all-frequency band for exporting power divider carries out rapid scanning process and obtains idle channel, and result is exported to the short-wave signal processing module of short-wave radio set.
2. short wave communication adaptive frequency automatic acquisition according to claim 1 and input system, is characterized in that: described control circuit employing take LM317 as the integrated regulator of core.
3. short wave communication adaptive frequency automatic acquisition according to claim 1 and input system, is characterized in that: described short-wave signal processing module comprises the amplitude limit/filtering/amplifying circuit, analog-digital converter and the arm processor for carrying out filtering, amplitude measurement, restraint speckle process to signal that connect successively.
4. short wave communication adaptive frequency automatic acquisition according to claim 1 and input system, is characterized in that: described control circuit, transmit-receive switch, power divider, short-wave signal processing module are integrated in cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773301.3U CN204305018U (en) | 2014-12-10 | 2014-12-10 | A kind of short wave communication adaptive frequency automatic acquisition and input system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773301.3U CN204305018U (en) | 2014-12-10 | 2014-12-10 | A kind of short wave communication adaptive frequency automatic acquisition and input system |
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| Publication Number | Publication Date |
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| CN204305018U true CN204305018U (en) | 2015-04-29 |
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| CN201420773301.3U Expired - Fee Related CN204305018U (en) | 2014-12-10 | 2014-12-10 | A kind of short wave communication adaptive frequency automatic acquisition and input system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104683004A (en) * | 2014-12-10 | 2015-06-03 | 中国人民解放军63888部队 | Short-wave communication adaptive frequency automatic acquisition and input method and system thereof |
| CN109243498A (en) * | 2018-11-20 | 2019-01-18 | 南京莱斯信息技术股份有限公司 | A kind of endpoint detection system and detection method based on FFT voice signal |
-
2014
- 2014-12-10 CN CN201420773301.3U patent/CN204305018U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104683004A (en) * | 2014-12-10 | 2015-06-03 | 中国人民解放军63888部队 | Short-wave communication adaptive frequency automatic acquisition and input method and system thereof |
| CN109243498A (en) * | 2018-11-20 | 2019-01-18 | 南京莱斯信息技术股份有限公司 | A kind of endpoint detection system and detection method based on FFT voice signal |
| CN109243498B (en) * | 2018-11-20 | 2023-03-14 | 南京莱斯信息技术股份有限公司 | End point detection system and method based on FFT (fast Fourier transform) voice signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |