CN204215243U - A kind of broadband signal collector based on digital channelizing - Google Patents
A kind of broadband signal collector based on digital channelizing Download PDFInfo
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- CN204215243U CN204215243U CN201420651923.9U CN201420651923U CN204215243U CN 204215243 U CN204215243 U CN 204215243U CN 201420651923 U CN201420651923 U CN 201420651923U CN 204215243 U CN204215243 U CN 204215243U
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- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 4
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- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to a kind of broadband signal collector based on digital channelizing, it is characterized in that: comprise the microwave down-converter unit, intermediate-freuqncy signal receiving element, digital channelization unit, wave filter switch unit, the storage unit that connect successively; Described digital channelization unit is connected with fpga chip digital local oscillator generation unit; Also comprise PC control unit and real-time display unit, described PC control unit is connected with real-time display unit, microwave down-converter unit, digital channelization unit, wave filter switch unit and storage unit.Switching can be set to frequency range, bandwidth in gatherer process, data be stored into inside, achieve and the signal of different frequency range different bandwidth is gathered.
Description
Technical field
The utility model relates to a kind of signal picker, relates to a kind of broadband signal collector based on digital channelizing specifically.
Background technology
Along with the development of modern radar technology, in order to improve resolution, mostly adopting broadband signal, therefore the investigation of radar signal being needed to the collector in broadband, but, the signal picker be mostly arrowband existed in the market.In addition, whether radar oneself is in order to verify that whether correct the signal of oneself launched, correct under the checking that also needs the signals collecting of oneself to return.As can be seen here, more and more urgent to the demand of width signal collector.The utility model arises just in this context.
Utility model content
The utility model is in order to solve the above-mentioned defect and deficiency that in prior art, signal picker exists, and provide a kind of width signal collector based on digital channelizing, the signal band not only gathered is wider, and can change the bandwidth of collection signal.
For solving the problems of the technologies described above, the utility model provides a kind of broadband signal collector based on digital channelizing, comprises the microwave down-converter unit, intermediate-freuqncy signal receiving element, digital channelization unit, wave filter switch unit, the storage unit that connect successively; Described digital channelization unit is connected with fpga chip digital local oscillator generation unit; Also comprise PC control unit and real-time display unit, described PC control unit is connected with real-time display unit, microwave down-converter unit, digital channelization unit, wave filter switch unit and storage unit;
After the signal that antenna receives by described microwave down-converter unit is down-converted to intermediate frequency, pass to described intermediate-freuqncy signal receiving element; The intermediate-freuqncy signal received is passed to fpga chip by described intermediate-freuqncy signal receiving element; The local oscillation signal that described fpga chip digital local oscillator generation unit produces and intermediate-freuqncy signal mixing obtain zero intermediate frequency signals; Described digital channelization unit, fpga chip passes to host computer after intermediate-freuqncy signal down coversion is obtained zero intermediate frequency signals; Described wave filter switch unit, be made up of the parallelism wave filter on fpga chip, filter coefficient is changed by host computer.
Aforementioned microwave down-converter unit comprises programmable digital control device DDC and frequently combines unit, and described frequency is combined unit and sent controling parameters generation local oscillation signal by host computer, then is controlled to produce coherent signal by programmable digital control device DDC.
Aforementioned frequency is combined unit and is comprised a digital controlled oscillator.
Aforementioned intermediate-freuqncy signal receiving element comprises modulus converter A/D, and described modulus converter A/D gathers intermediate-freuqncy signal and passes to fpga chip.
Aforementioned fpga chip digital local oscillator generation unit comprises Direct Digital Synthesizer DDS, and described Direct Digital Synthesizer DDS produces local oscillation signal.
Aforementioned PC control unit receives the data cached of storer DDR in described storage unit by PCIE bus.
The Advantageous Effects that the utility model reaches:
The utility model can the broadband signal of the certain frequency range of Real-time Collection, passes to host computer after being demodulated to zero intermediate frequency signals by digital channelizing process.Switching can be set to frequency range, bandwidth in gatherer process, data be stored into inside, achieve and the signal of different frequency range different bandwidth is gathered.
Accompanying drawing explanation
Fig. 1 composition of the present utility model and workflow diagram.
Embodiment
In order to the technique effect that auditor can better understand technical characteristic of the present utility model, technology contents and reach, now accompanying drawing of the present utility model is described in detail in conjunction with the embodiments.But shown accompanying drawing, just in order to better illustrate the technical solution of the utility model; be not actual proportions of the present utility model and best configuration; so, auditor please not arrange and configuration with regard to the ratio of accompanying drawing, limit claims of the present utility model.
Below in conjunction with drawings and Examples, the utility model patent is further illustrated.
The utility model provides a kind of broadband signal collector based on digital channelizing, comprises the microwave down-converter unit, intermediate-freuqncy signal receiving element, digital channelization unit, wave filter switch unit, the storage unit that connect successively; Described digital channelization unit is connected with fpga chip digital local oscillator generation unit; Also comprise PC control unit and real-time display unit, described PC control unit is connected with real-time display unit, microwave down-converter unit, digital channelization unit, wave filter switch unit and storage unit;
After the signal that antenna receives by described microwave down-converter unit is down-converted to intermediate frequency, pass to described intermediate-freuqncy signal receiving element; The intermediate-freuqncy signal received is passed to fpga chip by described intermediate-freuqncy signal receiving element; The local oscillation signal that described fpga chip digital local oscillator generation unit produces and intermediate-freuqncy signal mixing obtain zero intermediate frequency signals; Described digital channelization unit, fpga chip passes to host computer after intermediate-freuqncy signal down coversion is obtained zero intermediate frequency signals.
Described wave filter switch unit, be made up of the parallelism wave filter on fpga chip, filter coefficient is changed by host computer.
Described microwave down-converter unit comprises programmable digital control device DDC and frequently combines unit, and described frequency is combined unit and sent controling parameters generation local oscillation signal by host computer, then is controlled to produce coherent signal by programmable digital control device DDC.
Described frequency is combined unit and is comprised a digital controlled oscillator.
Described intermediate-freuqncy signal receiving element comprises modulus converter A/D, and described modulus converter A/D gathers intermediate-freuqncy signal and passes to fpga chip.
Described fpga chip digital local oscillator generation unit comprises Direct Digital Synthesizer DDS, and described Direct Digital Synthesizer DDS produces local oscillation signal.
Described PC control unit receives the data cached of storer DDR in described storage unit by PCIE bus.
Below disclose the utility model with preferred embodiment, so itself and be not used to limit the utility model, allly take equivalent replacement or technical scheme that the scheme of equivalent transformation obtains, all drop in protection domain of the present utility model.
Claims (6)
1. based on a broadband signal collector for digital channelizing, it is characterized in that: comprise the microwave down-converter unit, intermediate-freuqncy signal receiving element, digital channelization unit, wave filter switch unit, the storage unit that connect successively; Described digital channelization unit is connected with fpga chip digital local oscillator generation unit; Also comprise PC control unit and real-time display unit, described PC control unit is connected with real-time display unit, microwave down-converter unit, digital channelization unit, wave filter switch unit and storage unit;
After the signal that antenna receives by described microwave down-converter unit is down-converted to intermediate frequency, pass to described intermediate-freuqncy signal receiving element; Described intermediate-freuqncy signal receiving element, passes to fpga chip by the intermediate-freuqncy signal received; The local oscillation signal that described fpga chip digital local oscillator generation unit produces and intermediate-freuqncy signal mixing obtain zero intermediate frequency signals; Described digital channelization unit, fpga chip passes to host computer after intermediate-freuqncy signal down coversion is obtained zero intermediate frequency signals; Described wave filter switch unit, be made up of the parallelism wave filter on fpga chip, filter coefficient is changed by host computer.
2. broadband signal collector according to claim 1, it is characterized in that: described microwave down-converter unit comprises programmable digital control device DDC and frequently combines unit, described frequency is combined unit and is sent controling parameters generation local oscillation signal by host computer, then is controlled to produce coherent signal by programmable digital control device DDC.
3. broadband signal collector according to claim 2, is characterized in that: described frequency is combined unit and comprised a digital controlled oscillator.
4. broadband signal collector according to claim 1, is characterized in that: described intermediate-freuqncy signal receiving element comprises modulus converter A/D, and described modulus converter A/D gathers intermediate-freuqncy signal and passes to fpga chip.
5. broadband signal collector according to claim 1, is characterized in that: described fpga chip digital local oscillator generation unit comprises Direct Digital Synthesizer DDS, and described Direct Digital Synthesizer DDS produces local oscillation signal.
6. broadband signal collector according to claim 1, is characterized in that: described PC control unit receives the data cached of storer DDR in described storage unit by PCIE bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651923.9U CN204215243U (en) | 2014-11-04 | 2014-11-04 | A kind of broadband signal collector based on digital channelizing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651923.9U CN204215243U (en) | 2014-11-04 | 2014-11-04 | A kind of broadband signal collector based on digital channelizing |
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| CN204215243U true CN204215243U (en) | 2015-03-18 |
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| CN201420651923.9U Expired - Lifetime CN204215243U (en) | 2014-11-04 | 2014-11-04 | A kind of broadband signal collector based on digital channelizing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544060A (en) * | 2017-08-17 | 2018-01-05 | 南京长峰航天电子科技有限公司 | A kind of portable interference acquisition and memory system |
| CN107749552A (en) * | 2017-11-22 | 2018-03-02 | 南昌工程学院 | A kind of tunable optical electrical oscillator based on injection phase-locking |
| CN109586687A (en) * | 2018-12-05 | 2019-04-05 | 中科院计算技术研究所南京移动通信与计算创新研究院 | Digital Down Convert filter, system, filtering method, device and its storage medium |
-
2014
- 2014-11-04 CN CN201420651923.9U patent/CN204215243U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107544060A (en) * | 2017-08-17 | 2018-01-05 | 南京长峰航天电子科技有限公司 | A kind of portable interference acquisition and memory system |
| CN107749552A (en) * | 2017-11-22 | 2018-03-02 | 南昌工程学院 | A kind of tunable optical electrical oscillator based on injection phase-locking |
| CN109586687A (en) * | 2018-12-05 | 2019-04-05 | 中科院计算技术研究所南京移动通信与计算创新研究院 | Digital Down Convert filter, system, filtering method, device and its storage medium |
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