CN101668303A - Field united testing communication simulation method and platform of dual-band broadband radio - Google Patents

Field united testing communication simulation method and platform of dual-band broadband radio Download PDF

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CN101668303A
CN101668303A CN200910272202A CN200910272202A CN101668303A CN 101668303 A CN101668303 A CN 101668303A CN 200910272202 A CN200910272202 A CN 200910272202A CN 200910272202 A CN200910272202 A CN 200910272202A CN 101668303 A CN101668303 A CN 101668303A
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signal
control
platform
finish
interface
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CN101668303B (en
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范喜全
严忠
何明利
张建军
黄宏刚
马一松
王昌平
魏鑫
熊忠良
陶瑾
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Wuhan Zhongyuan Electronic Information Co., Ltd.
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Wuhan Zhongyuan Mobilcom Engineering Co Ltd
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Abstract

The invention discloses a field united testing communication simulation method and a platform of a dual-band broadband radio. The method comprises the following steps of: based on the overall top-downdesign idea of a software control technology, adopting an embedded operating system, carrying out a modularized circuit structure design, specifying an interface standard, interpolating an expansionsignal processing technology, taking a simple mechanical structure and a constructed hardware platform as the support, placing emphasis on replacing the hardware with the software, setting a processing method for a signal transmission channel and a signal receiving channel and providing a simulation platform, the loading of a variety of systems is realized on the same platform, the automatic switching of various functions such as the radio receiving and transmission, the working mode, and the like, is controlled in a radio propagation form in the field with a terminal PC or a network control INC equipment through an RS232 or an RS422 or a K mouth or an E1 interface, and the work of the radio is achieved by replacing the current various different frequency bands and different functions withthe same one platform. The field united testing communication simulation method and the platform of the dual-band broadband radio are characterized by friendly man-machine interface, flexible and fast access, reasonable whole structure, convenient and reliable operation, and the like.

Description

Dual-band broadband radio field united testing communication simulation method and platform
Technical field
The present invention relates to a kind of radio station field united testing communication method and platform, particularly a kind of dual-band broadband radio field united testing communication simulation method and platform.
Background technology
Nowadays, vehicle radio station, shipborne radio station and airborne station are extensive use of by people.With the vehicle radio station is example, in existing vehicle-mounted system, in order to adapt to the demand of different frequency range communication, the radio station of two different frequency ranges, different channels, difference in functionality often is housed on a car, in original just very limited space, it is more crowded just to seem, both has been not easy to operation like this, be difficult to guarantee communication quality again, have a strong impact on the real time communication effect.
Equally, along with the rapid opening of telecommunication market and the fast development of command, control, communications, and information industrial technology, the development trend of the wireless access wide band technology of various two-forties also very rapidly.Because wireless access is the effective support to wired access, additional and extension, be to realize important channel quick, the flexible communications service.
Therefore, how to guarantee and existing vehicle radio station, shipborne radio station and airborne station have favorable compatibility, on the adoptive basis, utilize software extensibility control technology, adorn the communication mode in radio station by same radio station to simulate reality, at different frequency range, different bandwidth, under the situation of difference in functionality, simulate words, continuous wave, the secure digital words, private data stream, private data newspaper etc., and incorporate the multiple technologies means, realize modulation, error correction coding, procotol is so that unify to finish every testing authentication work in the united testing communication in the open air, for the user provides field data service and liaison, and satisfy the every requirement and the upgrade service requirement of field united testing communication, and realize reliable efficient communication, this is insider's important topic anxious to be solved.
Summary of the invention
Purpose of the present invention is exactly in order to overcome the deficiency of prior art, provide a kind of reasonable in design, insert effectively, reliable operation, fast dual-band broadband radio field united testing communication simulation method and platform flexibly.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of dual-band broadband radio field united testing communication simulation method and platform, its emulation mode sends signal path processing method and received signal passage processing method for being provided with.
Described transmission signal path processing method, be divided into 2 paths, finish by 13 steps altogether, be that step 201 to step 203 is a speech path, step 204 to step 205 is a data path, step 206 to step 213 is finished the control of MAC layer, error correction coding, frequency hopping control successively, is encrypted control, channel control, modulation, up-conversion and Channel Processing, realizes wireless transmission with radiofrequency signal at last.
Described received signal passage processing method is finished by 14 steps altogether.Step 401 to step 409 is finished the mixing work of radiofrequency signal to intermediate-freuqncy signal successively, and the control of the filtering of signal and AGC level makes Channel Processing work such as intermediate-freuqncy signal is in the down-conversion dynamic range; Then enter the sampling of analog if signal, and the frequency spectrum digital of finishing sampling back signal is moved, obtain the baseband I Q signal, realize the AGC level control of numerical portion, finish the frame synchronization work of received signal on this basis, and change accepting state over to through correlator according to the correlation peak that the data that receive and the Wash function side correlation ratio of self obtain; And then the useful signal after will being correlated with is finished correcting frequency deviation through the demodulation part, the demodulation control of Data Detection and CPM+TCM, FM modulation system; Finish channel control, frequency hopping control, error correction coding, decryption work simultaneously respectively, realize the control of MAC layer, realize TDMA, the time slot control of CSMA;
Step 410 and step 411 are finished the framing of data-signal for receiving data signal path, and routing algorithm safeguards and the re-transmission affirmation work of data, and the data message that receives is passed through asynchronous serial port, or Ethernet interface or K mouth or E1 interface are given the user;
Step 412 to step 414 is reception voice signal path, with speech CVSD coding or other codings that receive, finish PCM decoding work, the DA digital-to-analogue that further realizes voice channel is shaped, with the amplification of the analogue voice signal that obtains, deliver to earphone after filtering and the level control and restore sound through front panel.
A kind of two-way broadband radio field united testing communication simulation method and platform, its emulation platform comprises: integrated service element circuit module, the first frequency range channel circuit module, the second frequency range channel circuit module, the frequency synthesizer circuit module, power amplification circuit module, front panel, back shroud, housing, antenna multicoupler module and power supply and NIM.It is characterized in that:
Described integrated service element circuit module is a modular construction, described integrated service element circuit module is a modular construction, include 2 ARM embedded microprocessors (D1 and D25), 2 extensive programmable gate arrays of FPGA (D37 and D17), 2 IFDSP (D36 and D16), 2 audio frequency DSP (D15 and D42), 1 audio frequency ad/da converter, 1 K interface, 1 Ethernet interface, 1 panel communication serial port, 1 universal asynchronous serial, 1 E1 interface, 1 RS422 interface, 1 PRAM, 1 real-time clock, 1 FLASH, 1 SDRAM, the whole integrated service element circuit module and the first frequency range channel circuit module, the second frequency range channel circuit module, the frequency synthesizer circuit module, the power amplification circuit module, the antenna multicoupler module, power supply and NIM are installed in the housing successively, with each interface on front panel and the back shroud through plug, socket is plug-in and connects, and combines to constitute an integral body.
It is more easier than HardwareUpgring to the present invention is based on software upgrading, generally can not cause simultaneously the top-down global design thought of hardware physical damage on stream with software debugging, adopt embedded OS, carry out the modularized circuit structural design, clear and definite interface standard, interpolation spread signal treatment technology, is support with simple and clear mechanical structure with setting up hardware platform, stress with software replace hardware, specifically be that channel device adopts modular construction, accomplish that the dual-band broadband radio transceiver is integrated, and on its communication function, utilize software can expand control technology, by sending signal path processing method and received signal passage processing method, can be under the prerequisite of not opening radio station hardware, injection mode is changed all functions software in the system by setup program, demonstrating fully software and radio technique provides powerful support for hardware platform and combines, carry out generalization, seriation and the design of knockdown height optimization, have and real dress radio station compatibility, on identical platform, realize loading multiple system, and with terminal PC or network control INC equipment, by the automatic switchover of multiple functions such as radio transmission control radio station transmitting-receiving and mode of operation, replace the radio station work of the real dress of existing multiple different frequency range difference in functionality by RS232 or RS422 or K mouth or E1 interface by identical platform.Also have the man-machine interface close friend simultaneously, insert flexibly and fast reasonable integral structure, characteristics such as convenient and reliable operation.
Description of drawings
Fig. 1 connects working state schematic representation for field united testing communication of the present invention is whole
Fig. 2 sends signal path process method step flow chart for the present invention
Fig. 3 sends signal path electricity theory diagram for the present invention
Fig. 4 is a received signal passage processing method flow chart of steps of the present invention
Fig. 5 is received signal path electricity theory diagram of the present invention
Fig. 6 is an overall structure schematic diagram of the present invention
Fig. 7 is the whole electric theory diagram of the present invention
Fig. 8 is integrated service element circuit module electricity theory diagram of the present invention
Fig. 9 is an integrated service element circuit module pcb board layout of the present invention
Figure 10 is a rear cover plate structure schematic diagram of the present invention
Symbol description among the figure:
1 is integrated service element circuit module, 2 is the first frequency range channel circuit module, 3 is the second frequency range channel circuit module, 4 is the frequency synthesizer circuit module, 5 is that power amplification circuit module, 6 is that front panel, 7 is that back shroud, 8 is that housing, 9 is the antenna multicoupler module, and 10 is power supply and NIM.
1.1 be arm processor S3C2410;
1.1.1 be audio frequency DSP (C5416);
1.1.1.1 be audio frequency ad/da converter (TLV320AC14); 1.1.1.2 be the K interface.
1.1.2 be Ethernet;
1.1.3 be and the panel communication serial port;
1.1.4 be universal asynchronous serial;
1.1.5 be the E1 mouth;
1.1.6 be the RS422 interface;
1.1.7 be PRAM;
1.1.8 be real-time clock (RTC);
1.1.9 be FLASH;
1.1.10 be SDRAM.
1.2 be the first frequency range FPGA (XC3S1200E);
1.2.1 be IFADC; 1.2.2 be IFDAC; 1.2.3 for field intensity detects ADC; 1.2.4 be the DAC of AGC;
1.3 be the first frequency range IFDSP (C5510);
1.3.1 be the control of maintaining secrecy; 1.3.2 be frequency hopping control;
1.4 be the second frequency range FPGA (XC3S1600E);
1.4.1 be IFADC; 1.4.2 be IFDAC; 1.4.3 for field intensity detects ADC; 1.4.4 be the DAC of AGC;
1.5 be the second frequency range IFDSP (C6416);
1.5.1 be the control of maintaining secrecy; 1.5.2 be frequency hopping control;
6.1 be control switch; 6.2 be display; 6.3 be keyboard; 6.4 be the I/O interface;
7.1 be power interface; 7.2 be the E1 mouth; 7.3 be RS232/422, K mouth and debugging interface; 7.4 be the IF interface;
8.1 be thermal window.
Embodiment
See also Fig. 1 to shown in Figure 10, be the specific embodiment of the invention.
As can be seen from Figure 1: the present invention in the open air in the united testing communication the whole operating state that connects be: two radio station all with terminal PC or network control equipment after RS232 or RS422 or E1 interface are connected, control the automatic switchover of multiple functions such as radio station transmitting-receiving and mode of operation in the radio transmission mode, replace the radio station work of the real dress of existing multiple different frequency range difference in functionality by identical platform.Realization can be expanded control technology with software radio, provides powerful support for the modular construction platform and combines, and carries out the field united testing communication simulation method and the platform of generalization, seriation and the design of knockdown height optimization.
From Fig. 2 to Fig. 5 as can be seen: a kind of dual-band broadband radio field united testing communication simulation method and platform, its emulation mode sends signal path processing method and received signal passage processing method for being provided with, and every kind of processing method all contains 2 frequency ranges, i.e. first frequency range and second frequency range, the frequency range of each frequency range can be set according to the actual requirements.
Described transmission signal path processing method is divided into speech and data two signal paths, is finished by 13 steps altogether, and concrete software processing method step is as follows:
Step 201 to step 203 is transmission voice signal path, finish from the speech of peripheral hardware input and control through amplification, filtering and the automatic electric-level of front panel, deliver to the AD sampling analogue voice signal is carried out analog-to-digital conversion, then the voice signal after the sampling is carried out the PCM signal encoding, carry out compress speech then and become the CVSD signal;
Step 204 and step 205 are data path, finish the data-signal of sending here by asynchronous serial port, Ethernet interface or K mouth or E1 interface from peripheral hardware and enter network layer handles, realize the re-transmission affirmation work of framing, routing algorithm maintenance and the data of data;
The signal that step 206 is handled the signal and the data path of speech path processing respectively to step 213 is finished MAC layer control and treatment successively, and the time slot control of finishing TDMA, CSMA starts transmission with time slot; Then carry out error correction coding, finish the RS interweaving encoding of data; The control of enforcement frequency hopping produces regularly sequential of frequency hopping, and the timing sequential of MAC layer, error correction coding and the work of each layer of modulation is provided; Finish the encryption Control work of speech, data-signal; Then operating frequency and other parameters of channel strip are implemented channel control; Finish signal map and shaping modulation work; Modulation signal is implemented frequency spectrum shift on required IF-FRE, and realize sending the DA shaping work of intermediate-freuqncy signal up-conversion; The intermediate-freuqncy signal that up-conversion is produced is carried out frequency spectrum shift to radiofrequency signal at last, finishes the Channel Processing work that filtering is amplified simultaneously.
Described received signal passage processing method is finished by 14 steps altogether, and concrete software processing method step is as follows:
Step 401 to step 409 is finished the mixing work from the radiofrequency signal to the intermediate-freuqncy signal successively, finishes the Channel Processing to the filtering and the control of AGC level of signal simultaneously; Then finish the sampling and the frequency spectrum digital thereof of analog if signal and move, with acquisition baseband I Q signal, and the AGC level control of realization numerical portion, finish down-conversion work; Finish related work by Wash function mode, achieve frame is synchronous, obtains synchronous head, automatically switches to accepting state; Carry out demodulation thereupon, finish correcting frequency deviation, Data Detection, realize CPM+TCM, FM demodulation work; Then finish channel control, frequency hopping control, error correction coding, deciphering control in succession, enter MAC layer control and treatment, realize the time slot control of TDMA, CSMA;
Step 410 and step 411 are for receiving data signal path, at first enter network layer handles, finish the framing of data-signal, routing algorithm is safeguarded and work is really known in the re-transmission of data, then with the data message that receives by asynchronous serial port, or Ethernet interface or K mouth or E1 interface are given the user;
Step 412 to step 414 is reception voice signal path, finish speech CVSD coding or other codings that to receive, finish PCM decoding work, the DA digital-to-analogue that further realizes voice channel is shaped, with the amplification of the simulated voice after the DA, deliver to earphone after filtering and the level control and restore sound through front panel.
From Fig. 6 to Figure 10 as can be seen:
A kind of two-way broadband radio field united testing communication simulation method and platform, its emulation platform comprises: integrated service element circuit module 1, the first frequency range channel circuit module 2, the second frequency range channel circuit module 3, frequency synthesizer circuit module 4, power amplification circuit module 5, front panel 6, back shroud 7, housing 8, antenna multicoupler module 9 and power supply and NIM 10 is characterized in that:
Described integrated service element circuit module 1 is a modular construction, include 2 ARM embedded microprocessors 1.1 (D1 and D25), 2 extensive programmable gate arrays 1.2 of FPGA and 1.4 (D37 and D17), 2 IFDSP1.3 and 1.5 (D36 and D16), 2 audio frequency DSP1.1.1 (D15 and D42), 1 audio frequency ad/da converter 1.1.1.1,1 K interface 1.1.1.2,1 Ethernet interface 1.1.2,1 panel communication serial port 1.1.3,1 universal asynchronous serial 1.1.4,1 E1 interface 1.1.5,1 RS422 interface 1.1.6,1 PRAM electricity writable memory 1.1.7,1 real-time clock 1.1.8, but 1 FLASH electronics is wiped memory 1.1.9,1 SDRAM static data memory 1.1.10, the whole integrated service element circuit module 1 and the first frequency range channel circuit module 2, the second frequency range channel circuit module 3, frequency synthesizer circuit module 4, power amplification circuit module 5, antenna multicoupler module 9, power supply and NIM 10 all are arranged in the housing 8, with each interface on front panel 6 and the back shroud 7 through plug, socket is plug-in and connects, and combines to constitute an integral body.
Described IFDSP signal processor 1.3, its GPIO pin is connected with the control 1.3.1 output of maintaining secrecy; And Emif pin and frequency hopping control 1.3.2 is two-way and is connected.
Described IFDSP signal processor 1.5, its GPIO pin is connected with the control 1.5.1 output of maintaining secrecy; And Emif pin and frequency hopping control 1.5.2 is two-way and is connected.
Described front panel 6 is disposed with control switch 6.1 from left to right, display 6.2, keyboard 6.3 and I/O interface 6.4.
Described back shroud 7 is disposed with power interface 7.1 from top to bottom, E1 mouth 7.2, RS232/RS422, K mouth and debugging interface 7.3, IF interface 7.4.
Described housing 8, its top is provided with thermal window 8.1.
Below in conjunction with Fig. 2 and Fig. 3, Fig. 4 and Fig. 5 are example with second frequency range, implement the function of task and corresponding hardware to sending each software processing method step of signal path and received signal path respectively, are further specified:
See also shown in Figure 2ly, the present invention sends signal path processing method software flow step and is:
Step 201. simulated voice: give AD sampling after amplification, filtering and the automatic electric-level control of the voice signal of equipment such as equipment external handle input through front panel;
Step 202. sampling: the analog-to-digital conversion of finishing simulated voice;
Step 203. compress speech: finish the coding work of the voice signal after the sampling, the PCM signal encoding of 128K is become the CVSD signal of 16K;
Step 204. data: external equipment is given the data-signal of equipment by asynchronous serial port, Ethernet interface, K oral instructions;
Step 205. network layer handles: finish the framing of data, the re-transmission affirmation work of routing algorithm maintenance and data;
Step 206.MAC handles: finish the time slot control of TDMA, CSMA, and arrange different time slots to start transmission according to type of service;
Step 207. error correction coding: finish the work such as RS code interleaving of data, strengthen the antijamming capability of data;
Step 208. frequency hopping control: mainly be the frequency hopping timing sequential that produces radio station work, the timing sequential of MAC layer, error correction coding and the work of each layer of modulation is provided;
Step 209. is encrypted: the encrypted work of finishing speech, data-signal;
The control of step 210. channel: channel control is mainly finished channel strip operating frequency and other parameter control according to the control code that the frequency hopping control section produces;
Step 211. modulation: finish the mapping and the shaping work of signal;
Step 212. up-conversion: finish the frequency spectrum shift of modulation back signal, modulation signal is moved on the IF-FRE of needs and gone, finish the DA shaping work of sending out intermediate-freuqncy signal simultaneously;
Step 213. Channel Processing: finish the frequency spectrum shift work of intermediate-freuqncy signal that up-conversion comes out, finish the filtering amplification work of signal simultaneously to radiofrequency signal;
See also Fig. 3 and shown in Figure 8, it is as follows that the present invention sends the hardware module circuit function effect of adopting in the signal path processing method:
ARM microprocessor 1.1, external Asynchronous Serial Interface and Ethernet interface is provided, the data that these two interfaces are come are mainly finished the network layer protocol of data and are handled in arm processor 1.1 the insides, and at 1.1 li traffic controls of finishing the data voice signal of arm processor.After the processing of having finished network layer protocol, arm processor 1.1 is sent to IFDSP processor 1.5 by the HPI mouth with data and handles.
Audio frequency dsp processor 1.1.1 mainly finishes the compressed encoding work of speech.Simulated voice is sent to arm processor 1.1 through AD sampling back after this chip is finished coding work.The speech of K interface, data-signal are left intact after being taken down by this processor, directly are sent to arm processor 1.1.
IFDSP processor 1.5 is mainly finished related works such as the control of MAC layer, error correction coding, modulation, frequency hopping control.From the voice-data signal that ARM1.1 brings, finish the sending time slots of data, speech at this processor and control, carry out up-conversion through giving FPGA1.4 after error correction coding, the modulation then.
FPGA1.4 mainly finishes the up conversion of modulation signal, and signal is moved intermediate-freuqncy signal by baseband signal, is sent to the digital conversion chip of IFDAC1.4.2 through the digital intermediate frequency signal after moving, and finishes the conversion of digital to analogy, and upper signal channel is launched.FPGA1.4 cooperates IFDSP processor 1.5 to finish the Control work of channel simultaneously.
See also shown in Figure 4ly, received signal passage processing method software flow step of the present invention is:
Step 401. Channel Processing: finish the mixing work of radiofrequency signal, finish the filtering and the AGC Control work of signal simultaneously to intermediate-freuqncy signal, make intermediate-freuqncy signal down-converted dynamically in.
Step 402. down-conversion: finish the sampling of analog if signal, and the frequency spectrum digital of finishing sampling back signal moves, obtain the IQ signal of base band.Finish the AGC level control of numerical portion simultaneously.
Step 403. correlator: finish the frame synchronization work of received signal, and finish work such as bit synchronous according to relevant result.Correlator mainly is to finish relevant by the mode of wash function.In the process that receives, correlator is compared the data of receiving with the wash series of self, and when the data of receiving were alignd with self, correlator can obtain correlation peak, represented correctly to have captured synchronous head, notified other correlation module to forward accepting state to.
Step 404. demodulation: the signal after relevant is a useful signal, and related works such as correcting frequency deviation, Data Detection are then finished in the demodulation part.Mainly be the demodulation work of finishing CPM+TCM, FM modulation system.
Step 405. channel control: finish the isoparametric Control work of channel frequency according to the frequency code information that the frequency hopping control section produces;
Step 406. frequency hopping is controlled: mainly be the frequency hopping timing sequential that produces radio station work, and according to the correlator information adjustment timing sequential of receiving, the timing sequential that provides MAC layer, error correction coding and each layer of modulation receipts to handle.
Step 407. error correction coding: finish deinterleaving, entangle and delete and the work decoding of RS.
Step 408. deciphering: the decryption work of finishing the enciphered data of reception.
Step 409.MAC layer control: finish the time slot control of TDMA, CSMA;
Step 410. network layer handles: finish the framing of data, the re-transmission affirmation work of routing algorithm maintenance and data.
Step 411. data: give the user by asynchronous serial port, Ethernet interface or K mouth with the data of receiving.
Step 412. voice decompress: finish the decoding work of the speech of the 16KCVSD that receives or other coding to PCM.
Step 413. is shaped: finish the DA shaping work of voice channel.
Amplification filtering and the level of simulated voice after step 414. simulated voice: the DA by panel given earphone after accusing and restored sound.
See also Fig. 5 and shown in Figure 8, the hardware module circuit function effect of adopting in the received signal passage processing method of the present invention is as follows:
IFADC modulus conversion chip 1.4.1 finishes the conversion of analog intermediate frequency to digital intermediate frequency, and the signal after the conversion is given the second frequency range FPGA1.4 and handled.
The second frequency range FPGA1.4 mainly finishes the sampling down conversion of signal afterwards, and the second frequency range FPGA1.4 is transformed into baseband signal to intermediate-freuqncy signal and gives the second frequency range IFDSP1.5 processing.Finish simultaneously frame synchronization and detect in this chip, it mainly is to rely on correlator to finish that frame synchronization detects, and when the signal that receives alignd with the series that sets in advance, at this moment correlator can calculate peak value, and the reception of expression frame data begins.
The second frequency range IFDSP1.5 mainly finishes the demodulation of the signal that down conversion comes out, the relevant Control work of fec decoder and MAC layer.And cooperate the Control work of finishing channel with the second frequency range FPGA 1.4 simultaneously.
Arm processor 1.1 is mainly finished the processing of network layer protocol.If what receive is data-signal, arm processor can be given originating party affirmative acknowledgement or negative response.Correctly receiving will be by Ethernet interface 1.1.2 behind the data-signal, and asynchronous serial port 1.1.4 or the K interface 1.1.1.2 on audio frequency DSP1.1.1 give terminal.If the voice signal that receives is then given audio frequency DSP1.1.1 by the HPI mouth.
Audio frequency DSP1.1.1 mainly finishes the decoding work of speech, is the voice signal of CVSD or sound sign indicating number words coding because originating party sends, needs finish through corresponding decoding work the recovery of digital voice signal.The voice signal that recovers is given digital to analog converter and is finished the conversion of digital voice to simulated voice.
In addition, antenna multicoupler module 9 is installed in the housing 8 behind front panel 6 left side control switchs 6.1, fails among the figure to draw, and is illustrated especially.
Above embodiment only is preferred embodiment of the present invention, in order to technical characterictic of the present invention and exploitativeness to be described, is not in order to limit the right of applying for a patent of the present invention; Above simultaneously description should be understood and be implemented for knowing those skilled in the art, and therefore, other all should be included within the described claim in the change or the modification that do not break away from the equivalence of being finished under the disclosed prerequisite.
The present invention is the rare creativeness that has dual-band broadband radio field united testing communication simulation method and platform, novelty, practicality and a progressive, meets the application for a patent for invention important document fully, so file an application according to Patent Law.

Claims (8)

1, dual-band broadband radio field united testing communication simulation method and platform, its emulation mode sends signal path processing method and received signal passage processing method for being provided with, and every kind of processing method all contains 2 frequency ranges, i.e. first frequency range and second frequency range, the frequency range of each frequency range can be set according to the actual requirements.
2, dual-band broadband radio field united testing communication simulation method as claimed in claim 1 and platform is characterized in that:
Described transmission signal path processing method is divided into speech and data two signal paths, is finished by 13 steps altogether, and concrete software processing method step is as follows:
Step 201 to step 203 is transmission voice signal path, finish from the amplification of the voice signal of peripheral hardware input through front panel, filtering and automatic electric-level control, deliver to the AD sampling analogue voice signal is carried out analog-to-digital conversion, then the voice signal after the sampling is carried out the PCM signal encoding, carry out compress speech then and become the CVSD signal;
Step 204 and step 205 are data path, finish from peripheral hardware and pass through asynchronous serial port, and the data-signal that Ethernet interface or K mouth or E1 interface are sent here enters network layer handles, realize the framing of data, the re-transmission affirmation work of routing algorithm maintenance and data;
The signal that step 206 is handled the signal and the data path of speech path processing respectively to step 213 is finished MAC layer control and treatment successively, and the time slot control of finishing TDMA, CSMA starts transmission with time slot; Then carry out error correction coding, finish the RS interweaving encoding of data; The control of enforcement frequency hopping produces regularly sequential of frequency hopping, and the timing sequential of MAC layer, error correction coding and the work of each layer of modulation is provided; Finish the encryption Control work of speech, data-signal; Then operating frequency and other parameters of channel strip are implemented channel control; Finish signal map and shaping modulation work; Modulation signal is implemented frequency spectrum shift on required IF-FRE, and realize sending the DA shaping work of intermediate-freuqncy signal up-conversion; The intermediate-freuqncy signal that up-conversion is produced is carried out frequency spectrum shift to radiofrequency signal at last, finishes the Channel Processing work that filtering is amplified simultaneously.
3, dual-band broadband radio field united testing communication simulation method as claimed in claim 1 and platform are characterized in:
Described received signal passage processing method is finished by 14 steps altogether, and concrete software processing method step is as follows:
Step 401 to step 409 is finished the mixing work from the radiofrequency signal to the intermediate-freuqncy signal successively, finishes the Channel Processing to the filtering and the control of AGC level of signal simultaneously; Then finish the sampling and the frequency spectrum digital thereof of analog if signal and move, with acquisition baseband I Q signal, and the AGC level control of realization numerical portion, finish down-conversion work; Finish related work by Wash function mode, achieve frame is synchronous, obtains synchronous head, automatically switches to accepting state; Carry out demodulation thereupon, finish correcting frequency deviation, Data Detection, realize CPM+TCM, FM demodulation work; Then finish channel control, frequency hopping control, error correction coding, deciphering control in succession, enter MAC layer control and treatment, realize the time slot control of TDMA, CSMA;
Step 410 and step 411 are for receiving data signal path, at first enter network layer handles, finish the framing of data-signal, routing algorithm is safeguarded and work is really known in the re-transmission of data, then with the data message that receives by asynchronous serial port, or Ethernet interface or K mouth or E1 interface are given the user;
Step 412 to step 414 is reception voice signal path, finish speech CVSD coding or other codings that to receive, finish PCM decoding work, the DA digital-to-analogue that further realizes voice channel is shaped, with the amplification of the simulated voice after the DA, deliver to earphone after filtering and the level control and restore sound through front panel.
4, dual-band broadband radio field united testing communication simulation method and platform, its emulation platform comprises: integrated service element circuit module (1), the first frequency range channel circuit module (2), the second frequency range channel circuit module (3), frequency synthesizer circuit module (4), power amplification circuit module (5), front panel (6), back shroud (7), housing (8), antenna multicoupler module (9) and power supply and NIM (10) is characterized in that:
Described integrated service element circuit module (1) is a modular construction, include 2 ARM embedded microprocessor (1.1) D1 and D25,2 extensive programmable gate arrays of FPGA (1.2 and 1.4) D37 and D17,2 IFDSP (1.3 and 1.5) D36 and D16,2 audio frequency DSP (1.1.1) D15 and D42,1 audio frequency ad/da converter (1.1.1.1), 1 K interface (1.1.1.2), 1 Ethernet interface (1.1.2), 1 panel communication serial port (1.1.3), 1 universal asynchronous serial (1.1.4), 1 E1 interface (1.1.5), 1 RS422 interface (1.1.6), 1 PRAM (1.1.7), 1 real-time clock (1.1.8), 1 FLASH (1.1.9), 1 SDRAM (1.1.10), the whole integrated service element circuit module (1) and the first frequency range channel circuit module (2), the second frequency range channel circuit module (3), frequency synthesizer circuit module (4), power amplification circuit module (5), antenna multicoupler module (9), power supply and NIM (10) all are arranged in the housing (8), go up each interface through plug with front panel (6) and back shroud (7), socket is plug-in and connects, and combines to constitute an integral body.
5, dual-band broadband radio field united testing communication simulation method as claimed in claim 4 and platform is characterized in that:
Described IFDSP signal processor (1.3), its GPIO pin is connected with control (1.3.1) output of maintaining secrecy; And Emif pin and frequency hopping control (1.3.2) is two-way and is connected.
6, dual-band broadband radio field united testing communication simulation method as claimed in claim 4 and platform is characterized in that:
Described IFDSP signal processor (1.5), its GPIO pin is connected with control (1.5.1) output of maintaining secrecy; And Emif pin and frequency hopping control (1.5.2) is two-way and is connected.
7, dual-band broadband radio field united testing communication simulation method as claimed in claim 4 and platform is characterized in that:
Described panel (6) is disposed with control switch (6.1) from left to right, display (6.2), keyboard (6.3) and I/O interface (6.4).
8, two-band broadband indoor united testing communication simulation method as claimed in claim 4 and platform is characterized in that:
Described back shroud (7) is disposed with power interface (7.1) from top to bottom, E1 interface (7.2), RS232/RS422, K mouth and debugging interface (7.3), IF interface (7.4).
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