CN103812576B - Adaptive Anti-jamming antenna channel integrated system - Google Patents
Adaptive Anti-jamming antenna channel integrated system Download PDFInfo
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- CN103812576B CN103812576B CN201410040689.0A CN201410040689A CN103812576B CN 103812576 B CN103812576 B CN 103812576B CN 201410040689 A CN201410040689 A CN 201410040689A CN 103812576 B CN103812576 B CN 103812576B
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Abstract
A kind of Adaptive Anti-jamming antenna channel integrated system that the present invention proposes, it is possible to effectively reduce system cost and complexity. The technical scheme is that: receive channel (2), digital signal plate (3) is connected in power supply (4) and controls composition Adaptive Anti-jamming antenna system between machine (5); It is provided with single channel at the input receiving channel and quickly switches the electronic commutator of the multiple antenna element of antenna array; Control machine is receive channel and numeral signal plate transmission electronic commutator synchronism switching instruction and numeral train of signal/conversion instruction by RS422 serial ports, it is achieved receive the connection of channel and different antenna element. Utilize the present invention can reduce the weight of antenna system, power consumption and cost further; Also can save tradition multi-channel adaptive anti-interference antenna and passage is carried out the complicated process of calibration of amplitude and phase, the problem solving prior art multi-channel adaptive anti-interference antenna interchannel amplitude phase unbalance.
Description
Technical field
The present invention relates to the multichannel channel integrated system of a kind of antijam communication domain-adaptive anti-interference antenna.
Background technology
Adaptive Anti-jamming antenna is a kind of spatial filter, multichannel receive signal simultaneously, by specific Anti-interference algorithm, passage carries out different width phase weightings, it is achieved the superposition of useful signal offsets with interference signal. When aerial array is on a grand scale, corresponding reception passage and ADC changer quantity also can be very big, thus can improve cost and the complexity of system greatly, due to interchannel amplitude phase unbalance, can cause the sensing deviation of wave beam simultaneously. Traditional multi-channel adaptive anti-interference antenna is subject to passage amplitude-phase consistency requirement, needs passage is carried out calibration of amplitude and phase before work, and particular with the increase of active device working time, interchannel discordance is all the more obvious.
Summary of the invention
It is an object of the invention to for above-mentioned the deficiencies in the prior art part, it is provided that a kind of without passage is carried out calibration of amplitude and phase, it is possible to effectively reduce system cost and complexity, it is achieved the channel synthesization of Adaptive Anti-jamming antenna.
The above-mentioned purpose of the present invention can be reached by following measures: a kind of Adaptive Anti-jamming antenna channel integrated system, including antenna array 1, receives channel 2, digital signal plate 3, power supply 4 and control machine 5; It is characterized in that: receive channel 2, digital signal plate 3 is connected between power supply 4 and control machine 5 and forms Adaptive Anti-jamming antenna system; It is provided with single channel at the input receiving channel 2 and quickly switches the electronic commutator of the multiple antenna element of antenna array; Control machine 5 transmits electronic commutator synchronism switching instruction and numeral train of signal/conversion instruction by RS422 serial ports for receiving channel 2 and numeral signal plate 3, it is achieved receive the connection of channel and different antenna element.
The invention has the beneficial effects as follows:
The present invention is by insertion switch speed in receiving channel quickly, reliability is also significantly high, the electronic commutator being widely used in the electronic device, it is achieved the high integrity of multichannel channel, decrease the quantity of active channel, reduce the complexity of tradition Adaptive Anti-jamming antenna. By the quick switching switched, it is possible to effectively reduce active device quantity in system. FPGA on signal-processing board realizes serial/parallel conversion and the Adaptive Anti-jamming function of data;
The present invention controls machine by sending serial ports instruction to reception channel and numeral signal plate simultaneously, it is achieved switch switches and data syn-chronization, greatly reduces the complexity of system.
Antenna array, reception channel, digital signal plate are connected between power supply and control machine and form Adaptive Anti-jamming antenna system by the present invention; By receiving the switch switching at channel input port place, it is achieved receive the connection of channel and different antenna element; Reduce further the weight of antenna system, power consumption and cost; May be omitted with tradition multi-channel adaptive anti-interference antenna and passage is carried out the complicated process of calibration of amplitude and phase, the problem solving prior art multi-channel adaptive anti-interference antenna interchannel amplitude phase unbalance.
Present invention employing arranges single channel at reception channel input and quickly switches the electronic commutator single channels technology of the multiple antenna element of antenna array, making the signal that antenna difference array element receives is all processed by identical passage, therefore amplitude phase unbalance sex chromosome mosaicism it is absent from, it is to avoid the uncertainty that calibration function brings.
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.
Detailed description of the invention
Consult Fig. 1. In a most preferred embodiment described below, Adaptive Anti-jamming antenna channel integrated system, including antenna array 1, receive channel 2, digital signal plate 3, power supply 4 and control machine 5. Adaptive Anti-jamming antenna system is made up of antenna array 1, reception channel 2, digital signal plate 3, power supply 4 and control machine 5. Wherein, receive channel 2, digital signal plate 3 is connected between power supply 4 and control machine 5. Signal-processing board 3 is interconnected by a high frequency cable with receiving channel 2. Power supply 4 and control machine 5 complete power supply and the serial ports control of antenna system by low frequency socket. Antenna array 1 includes several reception antenna unit. Digital signal plate 3 mainly includes one group of ADC and FPGA7. Receive channel 2 to be made up of one group of device with filtering, amplification and frequency conversion function. Receive channel 2 and include the road A-D converter ADC on the filter circuit received on passage 2, amplifying circuit and converter, converter electrical connection digital signal plate 3 digital signal circuit in sequential series, and connect on-site programmable gate array FPGA 7 by ADC. The electronic commutator 6 quickly switching the multiple antenna element of antenna array is connected to the single pass input in collection of letters road 2; Receive passage and realize the connection with different antennae unit by the quickly switching of electronic commutator 6. The electronic commutator 6 of described reception channel input electrical connection can be that electronic commutator put by a hilted broadsword more. For making digital signal in serial/parallel conversion process, data occur without confusion, it is necessary to the switching with switch carries out synchronize, and this just requires that control machine 5 sends synchronic command, and synchronic command realizes transmission by RS422 serial ports.
Power supply 4 provides various required voltages to Adaptive Anti-jamming antenna channel integrated system; Control machine 5 provides switch switching and synchronic command by RS422 serial ports for receiving channel 2 and numeral signal plate 3.
In order to ensure that signal is undistorted, electronic commutator 6 switchs switch speed >=f*N, and wherein N is antenna array array number, and f is the highest frequency that Adaptive Anti-jamming antenna system can receive spacing wave. In a switching cycle, receive channel 2 and receive the spacing wave respectively [x entering system through antennaT1,xT2,…,xTN], through through T all after date, the signal ordered series of numbers received in channel (2) can be expressed as [x11,x12,…,x1N,x21,x22,…,x2N,……,xT1,xT2,……,xTN], wherein, N is bay number, and T is the timing statistics of signal ordered series of numbers, xTNIt is the T cycle, signal amplitude that n-th bay receives and phase information; In digital signal plate (3), digital circuit receives and receives one group of serial data [x that channel (2) exports11,x12,…,x1N,x21,x22,…,x2N,……,xT1,xT2,……,xTN], converting analog signals into 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
Thus can with few device, it is achieved the data receiver function identical with traditional multi-channel adaptive anti-interference antenna system.
Consult Fig. 2. System adds and electrically activates work, and control machine 5 sends serial ports code by controlling to receive channel 2 to the electronic commutator 6 receiving channel input port place, the connection connection status of instruction electronic commutator 6 synchronism switching and different antennae unit. Control machine 5, while sending serial ports code to reception channel 2, sends same serial ports code to digital signal plate 3, and after the amplification of signal circuit filtering after filtering, amplifying circuit, frequency conversion and analog to digital conversion, being changed into one group of form is
[x′11, x '12..., x '1N, x '21, x '22..., x '2N..., x 'T1, x 'T2..., x 'TN] serial digital signal, digital signal serial/parallel conversion is two-dimensional matrix form by FPGA7, by being arranged on the Adaptive Anti-jamming algorithm routine in FPGA7, signal carries out width phase weighting and realizes anti-interference function.
Claims (4)
1. an Adaptive Anti-jamming antenna channel integrated system, including antenna array (1), receive channel (2), digital signal plate (3), power supply (4) and control machine (5), wherein, receive channel (2), digital signal plate (3) is connected in power supply (4) and controls composition Adaptive Anti-jamming antenna system between machine (5); Control machine (5) transmits electronic commutator synchronism switching instruction and numeral train of signal/conversion instruction by RS422 serial ports for receiving channel (2) and numeral signal plate (3), realize the connection receiving channel with different antenna element, it is characterized in that: be provided with single channel at the input receiving channel (2) and quickly switch the electronic commutator (6) of the multiple antenna element of antenna array, electronic commutator (6) is a switch switch speed >=f*N'sElectronic commutator put by hilted broadsword more, in a switching cycle, enters the spacing wave respectively [x receiving channel (2) through antennaT1,xT2,…,xTN], through T all after date, the signal ordered series of numbers received in channel (2) is expressed as [x11,x12,…,x1N,x21,x22,…,x2N,……,xT1,xT2,……,xTN], wherein, N is antenna array array number, and f is the highest frequency that Adaptive Anti-jamming antenna system receives spacing wave, and T is the timing statistics of signal ordered series of numbers, xTNIt is the T cycle, signal amplitude that n-th bay receives and phase information; Control machine (5) is while sending serial ports code to reception channel (2), sending same serial ports code to digital signal plate (3), in digital signal plate (3), digital circuit receives and receives one group of serial data [x that channel (2) exports11,x12,…,x1N,x21,x22,…,x2N,……,xT1,xT2..., xTN], converting analog signals into one group of form by ADC is: [x '11, x '12..., x '1N, x '21, x '22..., x '2N,……,x′T1,x′T2,…,x′TN] serial digital signal, 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.
2. Adaptive Anti-jamming antenna channel integrated system according to claim 1, it is characterised in that: signal-processing board (3) is interconnected by a high frequency cable with receiving channel (2).
3. Adaptive Anti-jamming antenna channel integrated system according to claim 1, it is characterised in that: power supply (4) and control machine (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: it is in sequential series at the filter circuit received on passage (2), amplifying circuit and converter that reception channel (2) includes a road, A-D converter ADC in converter electrical connection digital signal plate (3) digital circuit, and connect on-site programmable gate array FPGA (7) by ADC.
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| CN107707312A (en) * | 2017-08-25 | 2018-02-16 | 深圳市盛路物联通讯技术有限公司 | A kind of method of testing and system of Adaptive Anti-jamming antenna channel integrated system |
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| 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 |
| 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 |
| CN108649977B (en) * | 2018-05-17 | 2019-09-06 | 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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| TW545003B (en) * | 2001-01-16 | 2003-08-01 | Matsushita Electric Ind Co Ltd | Antenna diversity communications device |
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| 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 |
Cited By (2)
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| CN107707312A (en) * | 2017-08-25 | 2018-02-16 | 深圳市盛路物联通讯技术有限公司 | A kind of method of testing and system of Adaptive Anti-jamming antenna channel integrated system |
| 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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