CN202019352U - Radio frequency direct digital software receiver - Google Patents
Radio frequency direct digital software receiver Download PDFInfo
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- CN202019352U CN202019352U CN2010206680190U CN201020668019U CN202019352U CN 202019352 U CN202019352 U CN 202019352U CN 2010206680190 U CN2010206680190 U CN 2010206680190U CN 201020668019 U CN201020668019 U CN 201020668019U CN 202019352 U CN202019352 U CN 202019352U
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- radio frequency
- software receiver
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- frequency direct
- converter
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Abstract
The utility model discloses a radio frequency direct digital software receiver, which comprises an antenna, a signal conditioning module and an analog/digital (A/D) converter, wherein the signal conditioning module is arranged close to the antenna; the A/D converter is connected with the signal conditioning module and a field programmable gate array (FPGA); and the FPGA comprises a demultiplexer (DEMUX) and a baseband digital signal processing module. The software receiver has the advantages that: contradiction between high-speed broadband processing and power consumption is solved; requirements of engineering application can be met; and the software receiver has the characteristics of universality, high flexibility, low power consumption, high stability and high reliability.
Description
Technical field
The utility model relates to a kind of radio frequency Direct Digital software receiver.
Background technology
Radio frequency Direct Digital software receiver is to adopt the software radio notion, its core concept is to use wideband A/D transducer in the place of as close as possible antenna, directly, realize the various functions of radio communication then with software with the radio band analog signal digital.Along with the develop rapidly of information technology, digital processing technology and semiconductor technology and the rapid raising of microelectronic technique level, the digitized signal treatment technology progressively applies to fields such as modern communications, navigation, radar, recognition system.This novel radiotechnics of software radio relies on its unique advantage to be subjected to people's attention just day by day, will become the inexorable trend of military utilization Equipment Development of future generation, it also will become the important component part of Future in China digitization unit and digital battlefield.In recent years, along with the further deterioration of progress of science and technology and electromagnetic environment, each armament systems requires more and more higher to facilities, not only require the size of equipment more and more littler, weight is more and more lighter, and requires the flexibility of advanced technology, high reliability, high integrityization and system.These all require receiver to walk digitlization, software implementation receiver road, and following receiver will develop to digitized software receiver direction.
In the Military Application field, the signal kind of modulation of employing is many, and working band is wide.Adopt the mode of software radio to be applied to the reception field, can make processing mode more flexible, the information band of processing is wide, contains much information.But, can not satisfy the needs that engineering is used because containing much information of high speed processing makes that the receiver power consumption of employing software radio mode is very big.
The utility model content
The utility model has overcome shortcoming of the prior art, a kind of radio frequency Direct Digital software receiver is provided, solved the contradiction of high-speed wideband processing, can satisfy the engineering application need, had versatility, strong, low in energy consumption, stable high, the high reliability features of flexibility with power consumption.
The technical solution of the utility model is: a kind of radio frequency Direct Digital software receiver comprises antenna, the signal condition module near the antenna setting, the A/D converter that is connected with the signal condition module; Described A/D converter is connected with the FPGA field programmable gate array.
Described FPGA field programmable gate array comprises DEMUX demodulation multiplexer and baseband digital signal processing module.
Compared with prior art, the utility model has the advantages that: the radiofrequency signal of process radiofrequency signal conditioning module is directly carried out high speed, wideband A/D sampling by A/D converter, realized 1.9GHz is carried out Direct Sampling with interior radiofrequency signal, the radiofrequency signal behind the signal condition has directly been carried out digitlization; And by in FPGA (field programmable gate array), loading DEMUX demodulation multiplexer and baseband digital signal processing module, finish extraction to the arbitrary signal useful information, realize broadband reception, therefore reduced the consumption of analogue device significantly, make the working index of receiver more stable.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of radio frequency Direct Digital software receiver comprises antenna, the A/D converter, the FPGA field programmable gate array that are connected successively near the signal condition module of antenna, with the signal condition module.The FPGA field programmable gate array comprises DEMUX demodulation multiplexer and baseband digital signal processing module.
Operation principle of the present utility model is: seven tunnel radiofrequency signals of getting off from antenna are at first sent into the signal condition module and are carried out signal condition, seven tunnel radiofrequency signals through signal condition are sent into A/D converter, A/D converter carries out wide region, high-speed sampling to the radiofrequency signal through signal condition, obtains high-speed digital signal.High-speed digital signal is through DEMUX demodulation multiplexer reduction of speed, signal reconstruction processing, digital demodulation signal, output baseband digital signal; Handle by baseband digital signal, extract the frequency departure information and the output LVTTL vision signal that need.Can find out that from scheme hardware platform is a wide open system, and radio frequency analog signal is directly carried out digitized processing.
Claims (2)
1. a radio frequency Direct Digital software receiver comprises antenna, the signal condition module near the antenna setting, the A/D converter that is connected with the signal condition module; It is characterized in that: described A/D converter is connected with the FPGA field programmable gate array.
2. radio frequency Direct Digital software receiver according to claim 1 is characterized in that: described FPGA field programmable gate array comprises DEMUX demodulation multiplexer and baseband digital signal processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206680190U CN202019352U (en) | 2010-12-20 | 2010-12-20 | Radio frequency direct digital software receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206680190U CN202019352U (en) | 2010-12-20 | 2010-12-20 | Radio frequency direct digital software receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019352U true CN202019352U (en) | 2011-10-26 |
Family
ID=44813017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206680190U Expired - Lifetime CN202019352U (en) | 2010-12-20 | 2010-12-20 | Radio frequency direct digital software receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202019352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308932A (en) * | 2013-05-28 | 2013-09-18 | 中国电子科技集团公司第三十八研究所 | Monolithic multimode navigation chip based on broadband radio frequency direct technology |
| CN107749764A (en) * | 2017-09-15 | 2018-03-02 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method of sampling of multichannel Larger Dynamic signal |
-
2010
- 2010-12-20 CN CN2010206680190U patent/CN202019352U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308932A (en) * | 2013-05-28 | 2013-09-18 | 中国电子科技集团公司第三十八研究所 | Monolithic multimode navigation chip based on broadband radio frequency direct technology |
| CN107749764A (en) * | 2017-09-15 | 2018-03-02 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method of sampling of multichannel Larger Dynamic signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term |