CN202334540U - Channelized measuring system for digital channelized receiver - Google Patents
Channelized measuring system for digital channelized receiver Download PDFInfo
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- CN202334540U CN202334540U CN2011204559261U CN201120455926U CN202334540U CN 202334540 U CN202334540 U CN 202334540U CN 2011204559261 U CN2011204559261 U CN 2011204559261U CN 201120455926 U CN201120455926 U CN 201120455926U CN 202334540 U CN202334540 U CN 202334540U
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Abstract
The utility model discloses a channelized measuring system for a digital channelized receiver. The channelized measuring system comprises a digital channelized device, a channel selection device, a phase calculation device and a frequency calculation device, wherein an output end of the digital channelized device is connected with an input end of the channel selection device; an output end of the channel selection device is connected with an input end of the phase calculation device; an output end of the phase calculation device is connected with an input end of the frequency calculation device; and an output end of the channel selection device is also connected with an amplitude calculation device. By using the structure, the error rate can be low in a channelized measurement process, and higher calculation efficiency can be achieved.
Description
Technical field
The utility model relates to a kind of channelizing measuring system, specifically is a kind of channelizing measuring system that is used for digital channelized receiver.
Background technology
Digital receiver is a kind of electronic unit that is mainly used in the electronic system equipment such as digital microwave telecommunication, radar, electronic countermeasures, guidance.In broadband electronics war system, the X-band digital channelized receiver is one of main electronic unit, and the key technical indexes of describing this properties of product has: 1) operational frequency bandwidth; 2) receiving sensitivity; 3) frequency-measurement accuracy; 4) the frequency measurement time; 5) pulse duration; 6) input impedance; 7) input and output side voltage standing wave ratio; 8) circuit size; 9) bear power etc.
The topmost characteristics of electronic warfare are frequency range wide (almost covering whole radio band), and pending signal kinds is many, non-co-operation signal is carried out passive scouting receive.The modern electronic warfare receiver is of a great variety, but does not generally speaking still have all requirements that a kind of receiver can satisfy electronic reconnaissance.Conditional electronic war receiver adopts analogy method to realize more, in receiving course, because the restriction of analogue device, very easily causes the meticulous information dropouts such as frequency and phase place of signal.Present electronic warfare system often all is that system's adaptive capacity and reaction time can't be satisfied the electronic reconnaissance requirement known or under several kinds of signal patterns of supposition in advance, carry out work.So the research and development frequency range is wide, it is strong to receive adaptive capacity, and extensibility is good, can adapt to the reconnaissance receiver of multiple signal, is the inevitable requirement of electronic warfare development.The broadband scouting means will use the ADC of two-forty as far as possible, keeps watch on band with covering wide.At present the greatest problem that faces of digital receiver is that high-speed ADC is collected and recorded the mass data of getting off and must be had high-speed dsp to handle, otherwise digitalized data can lose, and system will work in the non real-time mode, can not realize the high probability of radar signal is received.The numeral that present research work to digit receiver mainly concentrates on high wide in-band signal is collected and recorded technology and corresponding high-speed figure frequency measurement technical elements.At present, in the channelizing measuring process,, make computational efficiency also lower simultaneously because the problem of detection mode and computational methods causes producing higher bit error rate.
The utility model content
The utility model provides a kind of channelizing measuring system that is used for digital channelized receiver, has solved in the channelizing measuring process in the past the problem that the error rate is higher and computational efficiency is lower.
The utility model is that the technical solution problem mainly realizes through following technical scheme: a kind of channelizing measuring system that is used for digital channelized receiver; Comprise digital channelizing device, channel selecting device, phase calculation device and frequency calculation means device; The output of said digital channelizing device is connected with the input of channel selecting device; The output of channel selecting device is connected with the input of phase calculation device; The output of phase calculation device is connected with the input of frequency calculation means device, and the output of said channel selecting device also is connected with the amplitude calculation element.
The output of said digital channelizing device also is connected with the Channel Detection device, and the output of Channel Detection device is connected with the time of advent and pulsewidth calculation element.
The output of said amplitude calculation element is connected to FPDP P1.
The output of said frequency calculation means device is connected to FPDP P2.
The output of the said time of advent and pulsewidth calculation element is connected to FPDP P3.
The utility model compared with prior art has the following advantages and beneficial effect: the digital channelizing device of the utility model is divided into 32 channels with the digital signal of each road input, each channel width 18.75MHz, and wherein 0 channel and 31 channels are in the transition band; No signal, so actual efficient channel number is 30, the channel monitoring device adopts the mode of wavelet transformation to detect; After if certain Channel Detection to signal, is got out of the way the rising edge of signal, the channel monitoring of respective channels is notified each signal to choose parts and is selected corresponding channel; Be sent to the next stage phase calculation; Reduced the error rate, phase calculation flowing water mode computation, efficient is higher.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with embodiment the utility model is done further to specify, but the execution mode of the utility model is not limited thereto.
Embodiment:
As shown in Figure 1; The utility model comprises digital channelizing device, channel selecting device, phase calculation device and frequency calculation means device; The output of digital channelizing device is connected with the input of channel selecting device; The output of channel selecting device is connected with the input of phase calculation device, and the output of phase calculation device is connected with the input of frequency calculation means device, and the output of frequency calculation means device is connected to FPDP P2; The output of channel selecting device also is connected with the amplitude calculation element, and the output of amplitude calculation element is connected to FPDP P1.
The output of the digital channelizing device of present embodiment also is connected with the Channel Detection device, and the output of Channel Detection device is connected with the time of advent and pulsewidth calculation element, and the output of the time of advent and pulsewidth calculation element is connected to FPDP P3.
The operation principle of the utility model is: at first; Signal enters into the digital channelizing device; The digital channelizing device is divided into 32 channels with the digital signal of each road input; Then signal carries out input with channel is chosen, the signal entering time of advent and pulsewidth calculation element after the detection, and signal outputed to FPDP P3; Signal after channel is chosen carries out amplitude simultaneously and calculates and phase calculation, and the signal after calculating through amplitude outputs to FPDP P1; Signal calculates through the laggard line frequency of phase calculation, outputs to FPDP P2 at last.
As stated, then can realize the utility model well.
Claims (5)
1. channelizing measuring system that is used for digital channelized receiver; It is characterized in that: comprise digital channelizing device, channel selecting device, phase calculation device and frequency calculation means device; The output of said digital channelizing device is connected with the input of channel selecting device; The output of channel selecting device is connected with the input of phase calculation device; The output of phase calculation device is connected with the input of frequency calculation means device, and the output of said channel selecting device also is connected with the amplitude calculation element.
2. a kind of channelizing measuring system that is used for digital channelized receiver according to claim 1; It is characterized in that: the output of said digital channelizing device also is connected with the Channel Detection device, and the output of Channel Detection device is connected with the time of advent and pulsewidth calculation element.
3. a kind of channelizing measuring system that is used for digital channelized receiver according to claim 1, it is characterized in that: the output of said amplitude calculation element is connected to FPDP P1.
4. a kind of channelizing measuring system that is used for digital channelized receiver according to claim 1, it is characterized in that: the output of said frequency calculation means device is connected to FPDP P2.
5. a kind of channelizing measuring system that is used for digital channelized receiver according to claim 1, it is characterized in that: the output of the said time of advent and pulsewidth calculation element is connected to FPDP P3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204559261U CN202334540U (en) | 2011-11-17 | 2011-11-17 | Channelized measuring system for digital channelized receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204559261U CN202334540U (en) | 2011-11-17 | 2011-11-17 | Channelized measuring system for digital channelized receiver |
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| Publication Number | Publication Date |
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| CN202334540U true CN202334540U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204559261U Expired - Fee Related CN202334540U (en) | 2011-11-17 | 2011-11-17 | Channelized measuring system for digital channelized receiver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124185A (en) * | 2011-11-17 | 2013-05-29 | 四川蓝讯宝迩电子科技有限公司 | X-waveband broadband high-resolution digital channelized receiver |
| CN107561357A (en) * | 2017-07-05 | 2018-01-09 | 中国电子科技集团公司第三十八研究所 | A kind of high-precision instantaneous frequency measurement method and apparatus based on channelizing |
-
2011
- 2011-11-17 CN CN2011204559261U patent/CN202334540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124185A (en) * | 2011-11-17 | 2013-05-29 | 四川蓝讯宝迩电子科技有限公司 | X-waveband broadband high-resolution digital channelized receiver |
| CN107561357A (en) * | 2017-07-05 | 2018-01-09 | 中国电子科技集团公司第三十八研究所 | A kind of high-precision instantaneous frequency measurement method and apparatus based on channelizing |
| CN107561357B (en) * | 2017-07-05 | 2020-08-14 | 中国电子科技集团公司第三十八研究所 | High-precision instantaneous frequency measurement method and device based on channelization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121117 |