CN103812576A - Comprehensive system of self-adapting anti-interference antenna channel - Google Patents
Comprehensive system of self-adapting anti-interference antenna channel Download PDFInfo
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- CN103812576A CN103812576A CN201410040689.0A CN201410040689A CN103812576A CN 103812576 A CN103812576 A CN 103812576A CN 201410040689 A CN201410040689 A CN 201410040689A CN 103812576 A CN103812576 A CN 103812576A
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Abstract
The invention discloses a comprehensive system of a self-adapting anti-interference antenna channel, which is capable of effectively reducing the system cost and complexity. The comprehensive system of the self-adapting anti-interference antenna channel is realized through the following technical schemes: a receive channel (2) and a digital signal plate (3) are connected between a power supply (4) and a controller (5) to form a self-adapting anti-interference antenna system; a single-channel electronic change-over switch capable of rapidly switching a plurality of antenna elements of an antenna array is arranged at the input end of the receive channel; the controller transmits the synchronous switch instruction and digital signal string of the electronic change-over switch to the receive channel and a digital signal plate via a RS422 serial port/and converts the instruction, thus realizing the connection of the receive channel and different antenna array elements. According to the comprehensive system, the weight, power consumption and cost of the antenna system can be further reduced; and the complicated program that a traditional multi-channel self-adapting anti-interference antenna carries out the calibration of amplitude and phase on the channel can also be saved, thereby solving the problem on inconsistent amplitude and phase among the channels of multi-channel self-adapting anti-interference antenna in the prior art.
Description
Technical field
The present invention relates to a kind of multichannel channel integrated system of antijam communication domain-adaptive anti-interference antenna.
Background technology
Adaptive Anti-jamming antenna is a kind of spatial filter, receives signal by multichannel simultaneously, by specific anti-interference algorithm, passage is carried out to different width phase weightings, realizes the stack of useful signal and offseting of interference signal.In the time that aerial array is on a grand scale, corresponding receive path and ADC converter quantity also can be very large, will improve greatly like this cost and the complexity of system, can, because interchannel width is mutually inconsistent, cause the sensing deviation of wave beam simultaneously.Traditional multi-channel adaptive anti-interference antenna is subject to the requirement of passage amplitude-phase consistency, needs passage to carry out calibration of amplitude and phase before work, and particularly along with the increase of active device operating time, interchannel inconsistency is all the more obvious.
Summary of the invention
The object of the invention is for above-mentioned the deficiencies in the prior art part, provide a kind of and can effectively reduce system cost and complexity without passage is carried out to calibration of amplitude and phase, realize the channel synthesization of Adaptive Anti-jamming antenna.
Above-mentioned purpose of the present invention can reach by following measures: a kind of Adaptive Anti-jamming antenna channel integrated system, comprises antenna array 1, receive channel 2, digital signal plate 3, power supply 4 and controller 5; It is characterized in that: receive channel 2, digital signal plate 3 are connected between power supply 4 and controller 5 and form Adaptive Anti-jamming antenna system; Be provided with the electronic commutator of the multiple antenna elements of the quick switched antenna front of single channel at the input of receive channel 2; Controller 5 is receive channel 2 and the digital signal plate synchronous switching command of 3 transmission electronic change over switch and the serial/parallel conversion instruction of digital signal by RS422 serial ports, realizes being connected of receive channel and different antenna element.
The invention has the beneficial effects as follows:
The present invention is very fast by insertion switch speed in receive channel, reliability is also very high, and the electronic commutator being widely used in electronic equipment is realized the high integrity of multichannel channel, reduce the quantity of active channel, reduced the complexity of traditional Adaptive Anti-jamming antenna.By the quick switching of switch, can effectively reduce active device quantity in system.FPGA on signal-processing board realizes serial/parallel conversion and the Adaptive Anti-jamming function of data;
Controller of the present invention is by simultaneously sending serial ports instruction to receive channel and digital signal plate, realizes switching over and data are synchronous, greatly reduces the complexity of system.
The present invention is connected in antenna array, receive channel, digital signal plate between power supply and controller, to form Adaptive Anti-jamming antenna system; By the switching at receive channel input port place, realize being connected of receive channel and different antenna element; Weight, power consumption and the cost of antenna system are further reduced; Can also save traditional multi-channel adaptive anti-interference antenna carries out calibration of amplitude and phase complicated process to passage, solve the mutually inconsistent problem of prior art multi-channel adaptive anti-interference antenna interchannel width.
The present invention adopts the electronic commutator single channel passage technology that the multiple antenna elements of the quick switched antenna front of single channel are set at receive channel input, the signal that the different array element of antenna is received is all to process by identical passage, therefore there is not width phase problem of inconsistency, the uncertainty of having avoided calibration function to bring.
Accompanying drawing explanation
Fig. 1 is the Adaptive Anti-jamming antenna system composition frame chart of comprehensive channel.
Fig. 2 is the workflow diagram of system described in Fig. 1.
Embodiment
Consult Fig. 1.In a most preferred embodiment described below, Adaptive Anti-jamming antenna channel integrated system, comprises antenna array 1, receive channel 2, digital signal plate 3, power supply 4 and controller 5.Adaptive Anti-jamming antenna system is made up of antenna array 1, receive channel 2, digital signal plate 3, power supply 4 and controller 5.Wherein, receive channel 2, digital signal plate 3 are connected between power supply 4 and controller 5.Signal-processing board 3 interconnects by a high frequency cable with receive channel 2.Power supply 4 and controller 5 complete power supply and the serial ports control of antenna system by low frequency socket.Antenna array 1 comprises several reception antenna unit.Digital signal plate 3 mainly comprises one group of ADC and FPGA7.Receive channel 2 is made up of one group of device with filtering, amplification and frequency conversion function.Receive channel 2 comprises road filter circuit, amplifying circuit and the frequency converter on receive path 2 in sequential series, the A-D converter ADC on frequency converter electrical connection digital signal plate 3 digital signal circuits, and connect on-site programmable gate array FPGA 7 by ADC.The electronic commutator 6 of the multiple antenna elements of switched antenna front is connected to the single pass input in collection of letters road 2 fast; Receive path is by the quick switching realization of electronic commutator 6 and being connected of different antennae unit.The electronic commutator 6 of described receive channel input electrical connection can be that a hilted broadsword is put electronic commutator more.For making digital signal in serial/parallel transfer process, data do not cause confusion, and need to synchronize with the switching of switch, and this just requires controller 5 to send synchronic command, and synchronic command is realized transmission by RS422 serial ports.
Power supply 4 provides various required voltages to Adaptive Anti-jamming antenna channel integrated system; Controller 5 provides switching over and synchronic command by RS422 serial ports for receive channel 2 and digital signal plate 3.
Undistorted in order to guarantee signal, electronic commutator 6 switching over speed >=f*N, wherein N is antenna array array number, f is the highest frequency that Adaptive Anti-jamming antenna system can receive spacing wave.In a switching cycle, receive channel 2 receives that the spacing wave that enters system through antenna is respectively [x
t1, x
t2..., x
tN], through T all after date of process, the signal ordered series of numbers in receive channel (2) can be expressed as [x
11, x
12..., x
1N, x
21, x
22..., x
2N..., x
t1, x
t2..., x
tN], wherein, N is bay number, T is the timing statistics of signal ordered series of numbers, x
tNbe T cycle, N signal amplitude and the phase information that bay is received; In digital signal plate (3), digital circuit is received one group of serial data [x of receive channel (2) output
11, x
12..., x
1N, x
21, x
22..., x
2N..., x
t1, x
t2..., x
tN], converting analog signal to digital signal by ADC, digital signal is delivered to on-site programmable gate array FPGA 7 and carries out serial/parallel conversion, converts the two-dimensional matrix formatted data identical with traditional multi-channel adaptive anti-interference antenna to
So just can, with few device, realize the data receiver function identical with traditional multi-channel adaptive anti-interference antenna system.
Consult Fig. 2.System power-up startup work, controller 5 sends serial ports code by controlling receive channel 2 to the electronic commutator 6 at receive channel input port place, and instruction electronic commutator 6 synchronously switches the connection status that is connected with different antennae unit.Controller 5, giving in receive channel 2 sends serial ports code, sends same serial ports code to digital signal plate 3, and signal is after filtering after circuit filtering, amplifying circuit amplification, frequency conversion and analog to digital conversion, changes one group of form into and is
[x '
11, x '
12..., x '
1N, x '
21, x '
22..., x '
2N..., x '
t1, x '
t2, x '
tN] serial digital signal, FPGA7, by the serial/parallel digital signal two-dimensional matrix form that is converted to, by being arranged on the Adaptive Anti-jamming algorithm routine in FPGA7, carrying out the weighting of width phase to signal and realizes anti-interference function.
Claims (9)
1. an Adaptive Anti-jamming antenna channel integrated system, comprise antenna array (1), receive channel (2), digital signal plate (3), power supply (4) and controller (5), it is characterized in that: receive channel (2), digital signal plate (3) are connected between power supply (4) and controller (5) and form Adaptive Anti-jamming antenna system; Be provided with the electronic commutator of the multiple antenna elements of the quick switched antenna front of single channel at the input of receive channel (2); Controller (5) is receive channel (2) and the synchronous switching command of digital signal plate (3) transmission electronic change over switch and the serial/parallel conversion instruction of digital signal by RS422 serial ports, realizes being connected of receive channel and different antenna element.
2. Adaptive Anti-jamming antenna channel integrated system according to claim 1, is characterized in that: signal-processing board (3) interconnects by a high frequency cable with receive channel (2).
3. Adaptive Anti-jamming antenna channel integrated system according to claim 1, is characterized in that: power supply (4) and controller (5) complete power supply and the serial ports control of antenna system by low frequency socket.
4. Adaptive Anti-jamming antenna channel integrated system according to claim 1, it is characterized in that: receive channel (2) comprises road filter circuit, amplifying circuit and the frequency converter on receive path (2) in sequential series, A-D converter ADC in frequency converter electrical connection digital signal plate (3) digital circuit, and connect on-site programmable gate array FPGA (7) by ADC.
5. Adaptive Anti-jamming antenna channel integrated system according to claim 1, is characterized in that: described electronic commutator (6) is that a hilted broadsword is put electronic commutator more.
6. Adaptive Anti-jamming antenna channel integrated system according to claim 1 or 5, it is characterized in that: electronic commutator (6) switching over speed >=f*N, wherein N is antenna array array number, and f is the highest frequency that Adaptive Anti-jamming antenna system is received spacing wave.
7. Adaptive Anti-jamming antenna channel integrated system according to claim 1, is characterized in that: in a switching cycle, the spacing wave that enters receive channel (2) through antenna is respectively [x
t1, x
t2..., x
tN], through T all after date, the signal ordered series of numbers in receive channel (2) can be expressed as [x
11, x
12..., x
1N, x
21, x
22..., x
2N..., x
t1, x
t2..., x
tN], wherein, N is bay number, T is the timing statistics of signal ordered series of numbers, x
tNbe T cycle, N signal amplitude and the phase information that bay is received.
8. Adaptive Anti-jamming antenna channel integrated system according to claim 7, is characterized in that: in digital signal plate (3), digital circuit is received one group of serial data [x of receive channel (2) output
11, x
12..., x
1N, x
21, x
22..., x
2N..., x
t1, x
t2..., x
tN], converting analog signal to digital signal by ADC, digital signal is delivered to on-site programmable gate array FPGA (7) and carries out serial/parallel conversion, converts two-dimensional matrix formatted data to
9. Adaptive Anti-jamming antenna channel integrated system according to claim 1, it is characterized in that: controller (5) is in sending serial ports code to receive channel (2), send same serial ports code to digital signal plate (3), signal is after filtering after circuit filtering, amplifying circuit amplification, frequency conversion and analog to digital conversion, is converted to one group of form to be
[x '
11, x '
12..., x '
1N, x '
21, x '
22..., x '
2N..., x '
t1, x '
t2, x '
tN] serial digital signal, convert the two-dimensional matrix formatted data identical with the data format of traditional multi-channel adaptive anti-interference antenna to.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122535A (en) * | 2014-07-17 | 2014-10-29 | 中国电子科技集团公司第二十研究所 | True time delay device based phased-array antenna broadband anti-interference method |
| CN106209196A (en) * | 2016-06-30 | 2016-12-07 | 广州海格通信集团股份有限公司 | A kind of phase compensating method based on many array element Channel assignment and system |
| CN108649977A (en) * | 2018-05-17 | 2018-10-12 | 中国人民解放军国防科技大学 | Array-type configurable anti-interference method and device for adaptive antenna array |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707312B (en) * | 2017-08-25 | 2021-10-08 | 深圳市盛路物联通讯技术有限公司 | Method and system for testing adaptive anti-interference antenna channel integrated system |
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| CN103439686A (en) * | 2013-07-25 | 2013-12-11 | 上海交通大学 | Single-channel radio direction finding system |
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| US20020118724A1 (en) * | 2001-01-16 | 2002-08-29 | Michinori Kishimoto | Antenna diversity communications device |
| US20080081567A1 (en) * | 2006-09-29 | 2008-04-03 | Ahmadreza Rofougaran | Method and system for ofdm based mimo system with enhanced diversity |
| CN202856743U (en) * | 2012-06-12 | 2013-04-03 | 北京科中高创新技术有限公司 | Double-system portable radio direction finding device |
| CN103439686A (en) * | 2013-07-25 | 2013-12-11 | 上海交通大学 | Single-channel radio direction finding system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122535A (en) * | 2014-07-17 | 2014-10-29 | 中国电子科技集团公司第二十研究所 | True time delay device based phased-array antenna broadband anti-interference method |
| CN106209196A (en) * | 2016-06-30 | 2016-12-07 | 广州海格通信集团股份有限公司 | A kind of phase compensating method based on many array element Channel assignment and system |
| CN106209196B (en) * | 2016-06-30 | 2019-11-12 | 广州海格通信集团股份有限公司 | A kind of phase compensating method and system based on more array element channel selections |
| CN108649977A (en) * | 2018-05-17 | 2018-10-12 | 中国人民解放军国防科技大学 | Array-type configurable anti-interference method and device for adaptive antenna array |
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