CN109889219A - The short wave channel unit and multi-channel testing receiver of wide band narrow band flexibly configurable - Google Patents
The short wave channel unit and multi-channel testing receiver of wide band narrow band flexibly configurable Download PDFInfo
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- CN109889219A CN109889219A CN201910218213.4A CN201910218213A CN109889219A CN 109889219 A CN109889219 A CN 109889219A CN 201910218213 A CN201910218213 A CN 201910218213A CN 109889219 A CN109889219 A CN 109889219A
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- switch
- short wave
- narrow band
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- channel unit
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Abstract
The invention discloses a kind of short wave channel unit of wide band narrow band flexibly configurable and multi-channel testing receivers.Short wave channel unit includes mode selection circuit, first switch, narrow band signal processing circuit, second switch, general signal processing circuit.Multi-channel testing receiver, including day be total to device, first to N short wave channel unit, with reference to shunt module, multi-channel sampling module, receive processing unit and monitoring processing unit.The present invention realizes a kind of receiver of wide band narrow band flexible configuration using more system signal monitoring technologies, wide band narrow band combined monitoring technology, multi-channel testing technology.It has the characteristics that equipment is simple, reliable performance, low in cost, Electro Magnetic Compatibility is good.
Description
Technical field
The present invention relates to field of communication technology, the short wave channel unit of especially a kind of wide band narrow band flexibly configurable and more
Channel monitoring receiver.
Background technique
In spectrum monitoring field, current shortwave monitor is usually to use broadband receiver or narrow-band receiver, to shortwave
Signal of communication carries out radio monitoring, spectrum management；Radio monitoring is carried out to Frequency Hopping Signal using broadband receiver.It is needing
Broadband and narrowband need multiple devices to complete jointly when monitoring simultaneously, and line is complicated between equipment, and operating process is comparatively laborious.
Summary of the invention
The technical problem to be solved in the present invention is to provide the short wave channel units of a kind of wide band narrow band flexibly configurable and more
Channel monitoring receiver.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
Technical solution one:
A kind of short wave channel unit of wide band narrow band flexibly configurable, including mode selection circuit, first switch, narrowband letter
Number processing circuit, second switch, general signal processing circuit；First switch one terminates mode selection circuit, and the other end is all the way
Second switch is connect through narrow band signal processing circuit, another way is directly connected to second switch；The second switch other end connects universal signal
Processing circuit；Narrow band signal processing circuit by successively cascade first filter, frequency mixer, the first amplifier, second filter,
First numerical-control attenuator, third amplifier composition；General signal processing circuit is by cascade second numerical-control attenuator, the 4th amplification
Device composition.
Further, mode selection circuit includes third switch, the 4th switch, the 4th numerical-control attenuator and the 5th amplifier；
4th numerical-control attenuator and the 5th amplifier in parallel switch, between the 4th switch in third.
Further, switch filter group is made of seven filters being connected in parallel between the 5th switch, the 6th switch；；It is defeated
Enter signal frequency be 1MHz-30MHz, the passband frequency range of seven filters be respectively as follows: 1MHz-6MHz, 4MHz-8MHz,
6MHz-10MHz、8MHz-13MHz、11MHz-16MHz、14MHz-21MHz、19MHz-30MHz。
Further, the first to the 6th construction of switch is identical, is made of triode and relay, wherein triode be after
The pull-in winding of electric appliance provides driving current.
Technical solution two:
A kind of multi-channel testing of the short wave channel unit of wide band narrow band flexibly configurable described in application technology scheme one
Receiver, including day be total to device, first to N short wave channel unit, with reference to shunt module, multi-channel sampling module, to receive processing single
Member and monitoring processing unit, N is positive integer；First to N short wave channel unit be connected in parallel on day be total to device and multi-channel sampling module it
Between；First is separately connected to corresponding between N short wave channel unit and multi-channel sampling module with reference to the output end of shunt module
Input terminal；Processing unit is received to be bi-directionally connected with multi-channel sampling module, monitoring processing unit respectively.
Having the technical effect that acquired by by adopting the above technical scheme
1, the present invention is real using more system signal monitoring technologies, wide band narrow band combined monitoring technology, multi-channel testing technology
A kind of receiver of wide band narrow band flexible configuration is showed.
2, the present invention has the characteristics that equipment is simple, reliable performance, low in cost, Electro Magnetic Compatibility is good.
3, the present invention realizes frequency using multichannel, wide band narrow band flexible configuration, broadband monitoring guidance narrowband monitoring technology
The mode that broadband monitoring, narrowband monitoring and the analytic solution phase modulation of spectrum combine.
4, the hardware processing platform combined based on FPGA and multi-core DSP is used in the present invention.FPGA is given full play to
Parallel, the data transmission of flowing water and processing technique, realize the real-time Transmission and processing to multichannel data.And DSP has played it easily
In the advantage for realizing complicated algorithm, and the technologies such as application DMA data transfer and software flow improve processing speed.
5, multichannel of the present invention can work independently, and supports the operating mode of multi-user, multitask, can be completed at the same time to multichannel
Monitoring, the control of signal are kept.
6, favorable expandability of the present invention, single machine port number can freely be configured by simply increasing or decreasing short wave channel unit
1~6 channel, also can be by increasing independent short wave channel cabinet, great extended channel quantity.
Detailed description of the invention
Fig. 1 is the functional block diagram of the embodiment of the present invention 1；
Fig. 2 is the circuit diagram of the mode selection circuit of the embodiment of the present invention 1；
Fig. 3 is the circuit diagram of the switch filter group of the embodiment of the present invention 1；
Fig. 4 is the circuit diagram of the first switch of the embodiment of the present invention 1；
Fig. 5 is the functional block diagram of the embodiment of the present invention 2；
Fig. 6 is the control flow chart of the embodiment of the present invention 2.
Specific embodiment
Embodiment 1:
A kind of short wave channel unit of wide band narrow band flexibly configurable, including mode selection circuit, first switch, narrowband letter
Number processing circuit, second switch, general signal processing circuit；First switch one terminates mode selection circuit, and the other end is all the way
Second switch is connect through narrow band signal processing circuit, another way is directly connected to second switch；The second switch other end connects universal signal
Processing circuit；Narrow band signal processing circuit by successively cascade first filter, frequency mixer, the first amplifier, second filter,
First numerical-control attenuator, third amplifier composition；General signal processing circuit is by cascade second numerical-control attenuator, the 4th amplification
Device composition.
Further, mode selection circuit includes third switch, the 4th switch, the 4th numerical-control attenuator and the 5th amplifier；
4th numerical-control attenuator and the 5th amplifier in parallel switch, between the 4th switch in third.
Further, switch filter group is made of seven filters being connected in parallel between the 5th switch, the 6th switch；；It is defeated
Enter signal frequency be 1MHz-30MHz, the passband frequency range of seven filters be respectively as follows: 1MHz-6MHz, 4MHz-8MHz,
6MHz-10MHz、8MHz-13MHz、11MHz-16MHz、14MHz-21MHz、19MHz-30MHz
Further, the first to the 6th construction of switch is identical, is made of wherein triode and relay, and triode is relay
The pull-in winding of device provides driving current.
After short-wave signal is received from antenna, signal is amplified by model selection function or predistortion, is opened
It closes filter group to inhibit the signal other than concern frequency, selects narrowband variable mode or broadband to lead directly to by either-or switch
Mode, in narrowband variable mode, for signal under the action of local oscillator, output is fixed as 40.455MHz intermediate-freuqncy signal, using putting
Greatly, filtering, numerical control attenuation etc., the intermediate-freuqncy signal and straight path signal after conditioning using either-or switch, open with front by selection
Consistent mode is closed, finally by numerical-control attenuator and amplifier etc., the output level of adjustment signal meets multi-channel sampling module
Requirement.
Frequency mixer model LAVI-2VH, first to third Amplifier Model is ADL5535ARKZ, the 4th amplification type
Number be RF2317, the 5th Amplifier Model be ERA-1SM+.Each numerical-control attenuator model is HMC472LP4E.
Embodiment 2:
A kind of multi-channel testing of the short wave channel unit of wide band narrow band flexibly configurable described in application technology scheme one
Receiver, including day be total to device, first to N short wave channel unit, with reference to shunt module, multi-channel sampling module, to receive processing single
Member and monitoring processing unit, N is positive integer；First to N short wave channel unit be connected in parallel on day be total to device and multi-channel sampling module it
Between；First is separately connected to corresponding between N short wave channel unit and multi-channel sampling module with reference to the output end of shunt module
Input terminal；Processing unit is received to be bi-directionally connected with multi-channel sampling module, monitoring processing unit respectively.
In the present embodiment, N 5.Aerial signal is 1MHz-30MHz.The frequency range of its total device: 1MHz~30MHz.It is defeated
Number out: 16, gain: 0dB.Sampler is AD9467-200.Output frequency with reference to shunt module is 100MHz.Reception processing
Unit is made of DSP:TMS320C6678 and FPGA:XC6VSX315T.Monitoring processing unit is PC machine.
Outer signals are total to device by day and amplify and be shunted to each short wave channel unit；It is each short wave channel with reference to shunt module
Unit provides reference signal, provides sampling clock for multi-channel sampling module；Each short wave channel unit is single-conversion channel, letter
Road intermediate-frequency filter is changeable for wide band narrow band；Multi-channel sampling module carries out AD sampling to intermediate-freuqncy signal；Receive processing unit pair
Sampled signal is handled, and monitoring result is obtained, and monitoring processing unit exports monitoring result；Bottom plate provides each component
Line, power supply unit provide required power supply for each component.
After software starting, operating mode instruction is obtained, is instructed if broadband mode, the work of short wave channel unit is first set
Mode is broadband mode, and channel status is arranged further according to requirements such as frequency, amplitudes, is finally connect according to the parameter setting of broadband mode
The working condition of processing unit is received, and sampled data is returned, process terminates；Process is identical when work is narrow band mode.
Functional character possessed by the present invention includes:
A) operating frequency range: 1MHz~30MHz；
B) maximum instantaneous monitors bandwidth: 25kHz (narrowband), 2MHz (broadband)；
C) largest passages number: 6 channel of single machine (can be by increasing independent short wave channel chassis expansion to maximum 35 channels)；
D) monitoring sensitivity :≤- 120dBm；
E) measurement dynamic range: >=120dB；
F) second order inter-modulation section: >=80dBm is inputted；
G) third order intermodulation section: >=20dBm is inputted；
H) image-frequency rejection ratio: >=95dB；
I) intermediate frequency rejection ratio: >=95dB.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in protection of the invention
Within the scope of.
Claims (5)
1. a kind of short wave channel unit of wide band narrow band flexibly configurable, it is characterised in that: opened including mode selection circuit, first
Pass, narrow band signal processing circuit, second switch, general signal processing circuit；First switch one terminates mode selection circuit, another
One end connects second switch through narrow band signal processing circuit all the way, and another way is directly connected to second switch；Another termination of second switch
General signal processing circuit；Narrow band signal processing circuit is by successively cascade first filter, frequency mixer, the first amplifier,
Two filters, the first numerical-control attenuator, third amplifier composition；General signal processing circuit is by cascade second numerical control attenuation
Device, the 4th amplifier composition.
2. the short wave channel unit of wide band narrow band flexibly configurable according to claim 1, it is characterised in that: model selection
Circuit includes third switch, the 4th switch, the 4th numerical-control attenuator and the 5th amplifier；4th numerical-control attenuator and the 5th amplification
Device is connected in parallel between third switch, the 4th switch.
3. the short wave channel unit of wide band narrow band flexibly configurable according to claim 1, it is characterised in that: switch filtering
Device group is made of seven filters being connected in parallel between the 5th switch, the 6th switch；Frequency input signal is 1MHz-30MHz, seven
The passband frequency range of a filter is respectively as follows: 1MHz-6MHz, 4MHz-8MHz, 6MHz-10MHz, 8MHz-13MHz, 11MHz-
16MHz、14MHz-21MHz、19MHz-30MHz。
4. the short wave channel unit of wide band narrow band flexibly configurable according to claim 1 to 3, it is characterised in that:
First to the 6th construction of switch is identical, is made of triode and relay, and triode provides drive for the pull-in winding of relay
Streaming current.
5. a kind of multichannel of the short wave channel unit using wide band narrow band flexibly configurable as claimed in any one of claims 1-3
Monitoring receiver, it is characterised in that: including day be total to device, first to N short wave channel unit, with reference to shunt module, multi-channel sampling
Module receives processing unit and monitoring processing unit, and N is positive integer；First to N short wave channel unit be connected in parallel on day be total to device and
Between multi-channel sampling module；First is separately connected to N short wave channel unit and multi-channel sampling with reference to the output end of shunt module
Respective input between module；Processing unit is received to be bi-directionally connected with multi-channel sampling module, monitoring processing unit respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910218213.4A CN109889219A (en) | 2019-03-21 | 2019-03-21 | The short wave channel unit and multi-channel testing receiver of wide band narrow band flexibly configurable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910218213.4A CN109889219A (en) | 2019-03-21 | 2019-03-21 | The short wave channel unit and multi-channel testing receiver of wide band narrow band flexibly configurable |
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| CN109889219A true CN109889219A (en) | 2019-06-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492895A (en) * | 2019-07-16 | 2019-11-22 | 同方电子科技有限公司 | A kind of shortwave multi-channel parallel directly acquires reception system |
| CN116184043A (en) * | 2023-03-15 | 2023-05-30 | 北京航空航天大学 | Broadband electromagnetic environment monitoring system for unmanned aerial vehicle platform |
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| CN203643597U (en) * | 2013-12-27 | 2014-06-11 | 中国电子科技集团公司第五十四研究所 | Mobile shortwave scouting and direction finding device |
| CN204272098U (en) * | 2014-11-18 | 2015-04-15 | 成都九洲迪飞科技有限责任公司 | Shortwave frequency conversion channel |
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|---|---|---|---|---|
| US20080024377A1 (en) * | 2006-07-26 | 2008-01-31 | Infineon Technologies Ag | Signaling in first and second frequency ranges |
| US8587659B1 (en) * | 2007-05-07 | 2013-11-19 | Equinox Corporation | Method and apparatus for dynamic image registration |
| CN102571121A (en) * | 2012-02-09 | 2012-07-11 | 成都中亚通茂科技有限公司 | Short wave broadband receiver |
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| CN110492895A (en) * | 2019-07-16 | 2019-11-22 | 同方电子科技有限公司 | A kind of shortwave multi-channel parallel directly acquires reception system |
| CN116184043A (en) * | 2023-03-15 | 2023-05-30 | 北京航空航天大学 | Broadband electromagnetic environment monitoring system for unmanned aerial vehicle platform |
| CN116184043B (en) * | 2023-03-15 | 2023-08-29 | 北京航空航天大学 | Broadband electromagnetic environment monitoring system for unmanned aerial vehicle platform |
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Application publication date: 20190614 |