CN202014370U - Electromagnetic environment emulation device of wireless station analog communication - Google Patents
Electromagnetic environment emulation device of wireless station analog communication Download PDFInfo
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- CN202014370U CN202014370U CN2011200949901U CN201120094990U CN202014370U CN 202014370 U CN202014370 U CN 202014370U CN 2011200949901 U CN2011200949901 U CN 2011200949901U CN 201120094990 U CN201120094990 U CN 201120094990U CN 202014370 U CN202014370 U CN 202014370U
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Abstract
An electromagnetic environment emulation device of wireless station analog communication comprises a noise and radiation simulation signal generating module, a signal synthesis module, a user input and display module and a control module. A simulation signal output end of the noise and radiation simulation signal generating module is connected with a simulation signal input end of the signal synthesis module. One output interface of the control module is in unilateral connection with a control signal input end of the noise and radiation simulation signal generating module, and another output interface is in unilateral connection with the control signal input end of the signal synthesis module. Another interface of the control module is in two way connection with the user input and display module. A speech signal input end of the signal synthesis module and a synthesis audio signal output end of the signal synthesis module are connected with an audio output end and an audio terminal of the real-equipment wireless station respectively. When transceiving signal state detecting terminal of the control module is connected with a transceiving signal control terminal of a real-equipment wireless station, speech signals output by the real-equipment wireless station are processed in emulation mode and then transmitted to the audio terminal.
Description
Technical field
The utility model relates to the emulation technology of radio analog communication communication effect, specifically a kind of radio station analog communication electromagnetic environment emulation device.
Background technology
Electromagnetic environment is most important to the influence of radio communication, and different electromagnetic environments not only has influence on the communication distance of radio station, also has influence on communication quality.And the formation of electromagnetic environment is very complicated, mainly includes: radiation propagation factor, natural electromagnetic radiation and people are electromagnetic radiation composite factors such as (electromagnetic radiation intentionally, electromagnetic radiation unintentionally).
Establish for the real structure of adorning radio station's electromagnetic environment, current mainly taking with high-power, professional wireless jammer, and realize in the electromagnetic mode of actual transmission.This mode mainly has the following disadvantages: the one, and be suitable for and cause electromagnetic pollution.Along with the progress of society, electromagnetic equipment increases gradually, and electromagnetic environment is abominable day by day, if the structure of taking the electromagnetic mode of actual transmission to carry out electromagnetic environment is established, then can further aggravate the deterioration of global electromagnetic environment.The 2nd, it is limited that the electromagnetic environment structure is established factor, mainly establishes nature electromagnetic radiation and people in order to structure usually and be electromagnetic radiation, be difficult to structure to establish the radiation propagation factor, such as under the different terrain conditions, different communication apart from the time communication efficiency etc.The 3rd, cost is too expensive.If satisfy with high-power, professional wireless jammer the structure of radio station's electromagnetic environment is established requirement, then must too high requirement be arranged, thereby improve equipment cost performance index such as the transmitting power of jammer, operating frequency, working methods.
Chinese patent discloses a kind of radio communication simulation analogue system, and this analogue system is also unresolved to real comprehensive structure rhetoric question topic of adorning radio station's electromagnetic environment.
The utility model content
The purpose of this utility model is to provide a kind of radio station analog communication electromagnetic environment emulation device, this simulator can be realized real dress radio station in effective communication distance in the analog communication, the communication efficiency of the real dress of emulation radio station between various propagation conditionss, natural electromagnetic radiation, people stop under for electromagnetic environments such as electromagnetic radiation, in the motion.
For achieving the above object, the utility model adopts following scheme: radio station's analog communication electromagnetic environment emulation device, this simulator has noise and radiation simulate signal generation module, signal synthesizing module, user's input and display module, control module, signal synthesizing module has the voice signal input, noise and radiation simulate signal input, signal input end and synthetic audio signal output, noise is connected with radiation simulate signal input with the noise of signal synthesizing module with radiation simulate signal output with the noise of radiation simulate signal generation module, exports noise and the radiation simulate signal that produces to signal synthesizing module; One road output interface of control module and signal input end unidirectional be connected of noise with radiation simulate signal generation module are with the noise that produced of control and the classification and the amplitude of radiation simulate signal; Another road output interface of control module is connected with the signal input end of signal synthesizing module is unidirectional, with synthesizing of control voice signal and noise and radiation simulate signal; Two-way user's input and the display module of being connected to of another road interface of control module, to realize the input of user to the electromagnetic environment emulation demand information, control module also realizes the output of control information and operating state display message simultaneously.
By such scheme as seen, the voice signal input of signal synthesizing module is connected in the real audio output of adorning radio station, the synthetic audio signal output of signal synthesizing module is connected in the real voice frequency terminal of adorning radio station, the transceiver state-detection end of control module is joined with the real transceiver control end of adorning radio station, can make the real voice signal of adorning radio station's output need after the simulation process of radio station's analog communication electromagnetic environment emulation device, transfer to voice frequency terminal again.
By such scheme as seen, during the utility model provides radio station analog communication electromagnetic environment emulation device busy, control module at first detects, judges the real transceiver operating state of adorning radio station, when real dress radio station is in when posting a letter state, then make noise and radiation simulate signal generation module not produce noise and radiation simulate signal, promptly the real voice signal (this signal is a sidetone signal) of adorning radio station's audio output output is not handled, and directly exported to voice frequency terminal; When dress radio station is in information receiving state in fact, the electromagnetic environment emulation information requirement that control module is then imported according to the user, and through sequential operation, then to noise and radiation simulate signal generation module output control command, the instruction that noise and radiation simulate signal generation module are then exported according to control module, produce corresponding noise and radiation simulate signal, this signal synthesizes at signal synthesizing module and the real voice signal of adorning radio station's receiver output, export voice frequency terminal then to, to realize the emulation of electromagnetic environment.
Simulated effect of the present utility model is good, and it has the electromagnetic pollution of not producing, the cost performance height, and the advantage of practicality and highly versatile, it is used for communication training, has the structure, performance and the function that do not change real dress radio station, outstanding feature such as simple and easy to do.
Description of drawings
Fig. 1 is the block diagram of the utility model one embodiment;
Fig. 2 is the composition block diagram of noise and radiation simulate signal generation module among Fig. 1;
Fig. 3 is the composition block diagram of signal synthesizing module among Fig. 1;
Fig. 4 is the utility model and the real annexation block diagram of adorning radio station.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing.
Referring to Fig. 1
Radio station's analog communication electromagnetic environment emulation device that the utility model provides has noise and radiation simulate signal generation module 1, signal synthesizing module 2, user import and display module 3, control module 4.Signal synthesizing module 2 has voice signal input, noise and radiation simulate signal input, signal input end and audio signal output end, noise is connected with radiation simulate signal input with the noise of signal synthesizing module 2 with radiation simulate signal output with the noise of radiation simulate signal generation module 1, exports noise and the radiation simulate signal that produces to signal synthesizing module; One road output interface of control module 4 and signal input end unidirectional be connected of noise with radiation simulate signal generation module 1 are with the noise that produced of control and the classification and the amplitude of radiation simulate signal; Another road output interface of control module 4 is connected with the signal input end of signal synthesizing module 2 is unidirectional, with synthesizing of control voice signal and noise and radiation simulate signal; Two-way user's input and the display module of being connected to of another road interface of control module 4, to realize the input of user to the electromagnetic environment emulation demand information, control module 4 also realizes the output of control information and operating state display message simultaneously.
Referring to Fig. 2
Noise and radiation simulate signal generation module 1 are that electromagnetic radiation simulate signal generation unit 1c and signal combining amplifier 1d form by noise Simulation signal generation unit 1a, natural electromagnetic radiation simulate signal generation unit 1b, people, and noise Simulation signal generation unit 1a, natural electromagnetic radiation simulate signal generation unit 1b, people are that the output of electromagnetic radiation simulate signal generation unit 1c and the input of signal combining amplifier 1d join.The output of signal combining amplifier 1d is the noise and the radiation simulate signal output of noise and radiation simulate signal generation module 1.
In the present embodiment, noise Simulation signal generation unit 1a adopts the 2N2907 triode, and takes emitter junction reversal connection mode (promptly working in cut-off state), utilizes Zener breakdown to produce shot noise, to realize the generation of noise Simulation signal.Nature electromagnetic radiation simulate signal generation unit 1b adopts the NE555 time-base integrated circuit to constitute multi-resonant oscillating circuit, under the control of control module 4, produces the audio signal of characteristic frequency, realizes the generation of nature electromagnetic radiation simulate signal.The people adopts the decoding chip PNX0101 of PHILIPS company for electromagnetic radiation simulate signal generation unit 1c, realizes realizing the generation of people for the electromagnetic radiation simulate signal to being prestored into the broadcast of voice signal.The signal input end of noise and radiation simulate signal generation module 1 is connected to noise Simulation signal generation unit 1a, natural electromagnetic radiation simulate signal generation unit 1b respectively, the people is the control end of electromagnetic radiation simulate signal generation unit 1c, to realize the control to each cell operation state.Signal combining amplifier 1d adopts the NE5532 double operational low noise operational amplifier chip of U.S. Xi Genidike company (SIC), realizes the synthetic of noise and radiation simulate signal and amplifies.The signal input end of noise and radiation simulate signal generation module 1 also is connected to the control end of signal combining amplifier 1d, to realize the control to signal combining amplifier 1d operating state.
Referring to Fig. 3
Signal synthesizing module 2 is made up of two groups of controlled amplifier 2a, 2b and one group of audio-frequency power amplifier 2c, the output of two groups of controlled amplifier 2a, 2b and the input of audio-frequency power amplifier 2c join, the input of one group of controlled amplifier 2a is the voice signal input, another input of organizing controlled amplifier 2b is noise and radiation simulate signal input, the output of audio-frequency power amplifier 2c is the synthetic audio signal output of signal synthesizing module 2, also is the synthetic audio signal output of whole radio station analog communication electromagnetic environment emulation device.The signal input end of above-mentioned signal synthesizing module 2 is connected to the control end of controlled amplifier 2a, 2b respectively.One group of controlled amplifier 2a is controlled the control of the control signal of module 4 outputs, and decision is used to amplify the real amplification quantity of adorning the voice signal amplifier of radio station's receiver output, and then changes the amplitude of output signal; Another organizes the control that controlled amplifier 2b is controlled the control signal of module 4 outputs, and decision is used to amplify noise and the noise of radiation simulate signal generation module 1 output and the amplification quantity of radiation simulate signal amplifier, and then changes the amplitude of output signal; By the 2b amplification quantity of controlled amplifier 2a and controlled amplifier, with the signal to noise ratio of decision composite signal.
In the present embodiment, controlled amplifier 2a, 2b all adopt the VCA822 linear variable gain amplifier chip of TI company to realize, audio-frequency power amplifier 2c adopts the TDA2030 audio frequency power amplifier integrated chip of RCA Corp. to realize.
In addition, among present embodiment Fig. 1, control module 4 is for being the microcomputer system that core constitutes by microprocessor chip.User's input is made up of importation and display part with display module 3, and the thin film switch of 15 key secondary multiplexings is adopted in its importation, and with the unidirectional serial line interface that connects microcomputer that is connected to of the mode of serial communication, to realize the input of user profile.The SMG12232LCM model LCD lattice module of Changsha Sunman Electronics Co., Ltd. is adopted in its display part, realizes the demonstration of control information and work state information.
Referring to Fig. 4
Radio station's analog communication electromagnetic environment emulation device that the utility model provides is installed between the audio output and its voice frequency terminal 5a (being loud speaker) of adorning radio station 5 in fact in use.The voice signal input that is about to signal synthesizing module is connected in the real audio output of adorning radio station, the synthetic audio signal output of signal synthesizing module is connected in the real voice frequency terminal of adorning radio station, the transceiver state-detection end of control module 4 is joined with the real transceiver control end of adorning radio station, can make the real voice signal of adorning radio station's output need after the simulation process of radio station's analog communication electromagnetic environment emulation device, transfer to voice frequency terminal again
In conjunction with Fig. 1, Fig. 2, Fig. 3
Noise and radiation simulate signal generation module 1 are mainly finished the generation of needed noise and radiation simulate signal in the electromagnetic environment emulation.The signal that noise and radiation simulate signal generation module 1 produce is divided into two classes, i.e. noise Simulation signal and radiation simulate signal.Noise Simulation signal in described noise and the radiation simulate signal is mainly used in emulation radiation propagation factor, realizes by noise Simulation signal generation unit 1a; Radiation simulate signal in described noise and the radiation simulate signal is mainly used in the simulation of natural electromagnetic radiation and the people is electromagnetic radiation, realizes for electromagnetic radiation simulate signal generation unit 1c by natural electromagnetic radiation simulate signal generation unit 1b and people; The signal that each noise and radiation simulate signal generation unit are exported amplifies through signal combining amplifier 1d again, last output noise and radiation simulate signal.Unidirectional noise and the radiation simulate signal input that is connected in signal synthesizing module 2 of the noise of noise and radiation simulate signal generation module 1 and radiation simulate signal output; The unidirectional road output interface that is connected in control module of the signal input end of noise and radiation simulate signal generation module 1 makes kind, the signal amplitude of its output signal be controlled the control of module 4.
Signal synthesizing module 2 is mainly finished voice signal and noise and the noise of radiation simulate signal generation module 1 output and the synthesizing of radiation simulate signal of adorning radio station's 5 receivers output to real, signal to noise ratio by control voice signal and noise and radiation simulate signal, with the communication efficiency under the different electromagnetic environments of emulation, and export audio output to.Voice signal and noise and radiation simulate signal amplify by controlled amplifier respectively, to change the signal amplitude of being exported, realize the amplification, synthetic of voice signal and noise and radiation simulate signal at last by audio-frequency power amplifier, and export.
User's input and display module 3, the demand information of mainly finishing electromagnetic environment emulation flows to control module 4, and realizes the control information of radio station's analog communication electromagnetic environment emulation device and the demonstration of work state information.User's input and display module 3 two-way road interfaces that are connected in control module 4.In (training) process of use, by user's input and display module 3, can import, change the demand information of electromagnetic environment emulation at any time, to satisfy the requirement of training under the complex electromagnetic environment.
Control module 4 is mainly finished and is adorned radio station's transceiver status detection to real, and according to the emulation demand of user to different electromagnetic environments, exports control signal to noise and radiation simulate signal generation module 1 and signal synthesizing module 2.Control module 4 adopts microprocessor and interface circuit to realize.Two-way user's input and the display module 3 of being connected to of one road interface of control module 4 realized the input of user to the electromagnetic environment emulation demand information, realizes the demonstration output of control information and work state information simultaneously; The transceiver state-detection end of control module 4 is in order to the unidirectional transceiver control end of dress radio station in fact that is connected to, to detect the real transceiver state of adorning radio station; Control module 4 is by unidirectional noise and radiation simulate signal generation mould 1, control noise and the operating state of radiation simulate signal generation module 1 each simulate signal generation unit and the amplitude of output signal of being connected to of interface; Control module 4 is by the unidirectional signal synthesizing module 2 that is connected to of interface, and synthesizing of control voice signal and noise and radiation simulate signal realizes the emulation of electromagnetic environment.
In the utility model, voice signal is considered as useful signal, noise and radiation simulate signal are considered as noise signal, control the amplitude of voice signal and noise and radiation simulate signal output signal respectively by controlled amplifier, with the ratio of change voice signal and noise and radiation simulate signal, and then realize the real change of adorning the signal to noise ratio of radio station's receiver output voice signal; Simultaneously, by the real variation of adorning the signal to noise ratio of radio station's receiver output voice signal, realize in the dress radio station analog communication in fact, the comprehensive simulation of electromagnetic environment.
Claims (5)
1. radio station's analog communication electromagnetic environment emulation device, it is characterized in that: this simulator has noise and radiation simulate signal generation module, signal synthesizing module, user's input and display module, control module, signal synthesizing module has the voice signal input, noise and radiation simulate signal input, signal input end and synthetic audio signal output, noise is connected with radiation simulate signal input with the noise of signal synthesizing module with radiation simulate signal output with the noise of radiation simulate signal generation module, exports noise and the radiation simulate signal that produces to signal synthesizing module; One road output interface of control module and signal input end unidirectional be connected of noise with radiation simulate signal generation module are with the noise that produced of control and the classification and the amplitude of radiation simulate signal; Another road output interface of control module is connected with the signal input end of signal synthesizing module is unidirectional, with synthesizing of control voice signal and noise and radiation simulate signal; Two-way user's input and the display module of being connected to of another road interface of control module, to realize the input of user to the electromagnetic environment emulation demand information, control module also realizes the output of control information and operating state display message simultaneously.
2. radio station according to claim 1 analog communication electromagnetic environment emulation device, it is characterized in that: noise and radiation simulate signal generation module are by noise Simulation signal generation unit, nature electromagnetic radiation simulate signal generation unit, the people is electromagnetic radiation simulate signal generation unit and signal combining amplifier composition, noise Simulation signal generation unit, nature electromagnetic radiation simulate signal generation unit, the people is that the output of electromagnetic radiation simulate signal generation unit and the input of signal combining amplifier join, and the output of signal combining amplifier is the noise and the radiation simulate signal output of noise and radiation simulate signal generation module.
3. radio station according to claim 1 analog communication electromagnetic environment emulation device, it is characterized in that: signal synthesizing module is made up of two groups of controlled amplifiers and one group of audio-frequency power amplifier, the output of two groups of controlled amplifiers and the input of audio-frequency power amplifier join, one group of controlled amplifier input terminal is the voice signal input, another organizes controlled amplifier input terminal is noise and radiation simulate signal input, and the output of audio-frequency power amplifier is the synthetic audio signal output of signal synthesizing module.
4. radio station according to claim 1 analog communication electromagnetic environment emulation device is characterized in that: control module is for being the microcomputer system that core constitutes by microprocessor chip.
5. radio station according to claim 1 analog communication electromagnetic environment emulation device, it is characterized in that: user's input is made up of importation and display part with display module, the thin film switch of 15 key secondary multiplexings is adopted in its importation, and its display part is the LCD lattice module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200949901U CN202014370U (en) | 2011-04-02 | 2011-04-02 | Electromagnetic environment emulation device of wireless station analog communication |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200949901U CN202014370U (en) | 2011-04-02 | 2011-04-02 | Electromagnetic environment emulation device of wireless station analog communication |
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| CN202014370U true CN202014370U (en) | 2011-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995192A (en) * | 2014-04-29 | 2014-08-20 | 中国人民解放军装备学院 | Method and equipment for testing and evaluating electromagnetic environment adaptability of electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995192A (en) * | 2014-04-29 | 2014-08-20 | 中国人民解放军装备学院 | Method and equipment for testing and evaluating electromagnetic environment adaptability of electronic equipment |
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Granted publication date: 20111019 Termination date: 20140402 |