CN103296427B - The implementation method that phased array antenna gain-adaptive controls - Google Patents
The implementation method that phased array antenna gain-adaptive controls Download PDFInfo
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- CN103296427B CN103296427B CN201310076709.5A CN201310076709A CN103296427B CN 103296427 B CN103296427 B CN 103296427B CN 201310076709 A CN201310076709 A CN 201310076709A CN 103296427 B CN103296427 B CN 103296427B
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Abstract
The implementation method that a kind of phased array antenna gain-adaptive that the present invention proposes controls, aim to provide one and can keep less output surplus, the antenna gain self-adaptation control method of raising equipment operating efficiency, the present invention is achieved by following technical proposals: phase array receives the trim signal that array element receives echo signal formation, gun parallax signal and and signal, down-converted is carried out respectively by the frequency converter of correspondence, sampled by the corresponding A-D converter ADC be connected again, deliver to acquisition and tracking device and carry out signal capture and tracking, output azimuth and the angle of pitch are to ripple control device, separate a road with signal and carry out signal to noise ratio detection and target range estimation, with range estimation value for foundation calculates transmitting antenna EIRP value, transmitting antenna array element number combinations and beam point steering is realized by ripple control device, the high speed data modulations of input high-speed modulator, to transmitting on carrier wave, send DAC reconstruction processing, realizes the spatial beams synthesis pointing to target direction.
Description
Technical field
The invention relates in telemetry communication field, be phase array system TT&C system, provide a kind of implementation method of antenna gain adaptive control, the system of realization meets determines that the optimum EIRP value under transmission rate condition exports.
Background technology
Phased array antenna is the radiation array element utilizing some, utilizes ripple control device to control the phase place of each array element radiation signal, realizes certain direction in space of array element synthesis beam position.Phased array antenna has the feature such as high-gain, beam direction rapid scanning, and the gain of phased array antenna increases with its array element quantity and increases, and antenna beamwidth increases with array element quantity and narrows.Along with the development of TTC&T Technology, high speed data transfer demand is urgent, and high speed data transfer needs system antenna to have high ERP EIRP value, phased array antenna EIRP value is the summation of antenna gain and all array element signals power outputs, high EIRP value phase array antenna beam is narrower, when carrying out echo signal and catching, narrow antenna beam target is more difficult, need to carry out goal directed, simultaneously in order to meet system high-speed data transmission rates demands, most harsh conditions is often considered in phased array antenna design, antenna EIRP value leaves enough surpluses, such real system work overall process, phased array antenna is operated in full power output state constantly, antenna equipment is caused to consume a large amount of power consumption, waste a large amount of system energy, also to adopt specially for the cooling measure of phased array antenna simultaneously, for the aircraft carrying platform of energy demand anxiety, this Design Mode is quite unfavorable.
Along with the development of vehicle technology, the requirement that aircraft carries electronic equipment to it is more and more higher, the electronic equipment carried is except meeting except electricity function index, also to possess the particular/special requirements such as low-power consumption, miniaturization, light weight, under this demand pull, the aircraft live subset of high workload efficiency will have vast potential for future development.Improve the operating efficiency of aircraft live subset, mean the power loss that need reduce equipment, under guaranteeing the message transmission rate condition that equipment ERP EIRP value is satisfied the demand, reduce design margin as far as possible.
Summary of the invention
The object of the invention is for phase array system TT&C system, there is provided one can keep less output surplus, reduction equipment operating power consumption, improves the implementation method of the antenna gain adaptive control of equipment operating efficiency, and the system of realization meets determines that the optimum EIRP value under transmission rate condition exports.
The present invention solves the scheme that prior art problem adopts: the implementation method that a kind of phased array antenna gain-adaptive controls, it is characterized in that comprising the steps: that phase array receives the trim signal that array element receives echo signal formation, gun parallax signal and and signal, divide three tunnels to send into three corresponding frequency converters and carry out down-converted, the A-D converter ADC be connected by three correspondences is again sampled, deliver to acquisition and tracking device and carry out input and acquisition and tracking, export the directional information of the relative reception antenna of target, export a road and signal estimates the signal to noise ratio of Received signal strength by SNR estimator, the smnr data estimated is after the estimation of Target Distance Estimation device target range, basis using this range estimation value as transmitting antenna ERP EIRP value, the target direction information obtained and transmitting antenna EIRP Value Data are sent into ripple control device, the quantity of phased array transmitting antenna array element combination is selected and beam point steering, the high speed data modulations of input high-speed modulator is to transmitting on carrier wave, digital to analog converter DAC is sent to carry out signal reconstruction process, again through frequency converter up-conversion and band pass filter BPF filtering, the phase array that incoming wave control device is specified launches array element, realizes the spatial beams synthesis pointing to target direction.
The present invention has following beneficial effect compared to prior art:
The present invention is directed to phase array system TT&C system, have employed the technology realization means being different from traditional phased array antenna mode of operation.Traditional phased array antenna is that design array element all participates in real work directly, and the antenna ERP EIRP value surplus of design is comparatively large, and equipment power dissipation and power output are in maximum rating always.And present invention employs bay gain-adaptive control technology, according to the telemetry communication distance of reality, the optimum ERP EIRP value that real-time calculating phased array transmitting antenna needs and array element quantity, launch array element accordingly by ripple control device gating and realize signal output.Under the method can make equipment ERP EIRP value meet transmission comformed information rate conditions, keep less output surplus, reduce the operating power consumption of equipment, equipment operating efficiency is high, can the different rate of information throughput conditions of demand of flexible adaptation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this patent is further illustrated.
Fig. 1 is the theory diagram of a kind of phased array antenna gain-adaptive of the present invention control method.
Embodiment
Consult Fig. 1.In the examples below, phased array antenna gain-adaptive control method, comprise, after receiving echo signal by phase array reception array element, formed trim signal, gun parallax signal and and signal, send frequency converter 1, frequency converter 2 and frequency converter 3 to carry out down-converted respectively, then after sending A-D converter ADC1, A-D converter ADC2, A-D converter ADC3 to sample respectively, send acquisition and tracking device to carry out input.Acquisition and tracking device receive reception antenna array element formed trim signal, gun parallax signal and and signal after, by extracting signal phase, the azimuth of the relative phased array receiving antenna of real-time acquisition target and angle of pitch information, the beam position controlling transmit phased array antenna for ripple control device provides data.Acquisition and tracking device realizes signal capture and tracking, exports the directional information of the relative reception antenna of target, and sends a road to SNR estimator by with signal, carry out the signal-to-noise ratio (snr) estimation of Received signal strength.SNR estimator receive with signal after, the signal to noise ratio of Received signal strength can be obtained by envelope-demodulation method, smnr data send Target Distance Estimation device, and utilize objective emission antenna EIRP value, receiving antenna gain and noise-temperature ratio G/T value, the distance of target can be estimated, the certain data-rate information of transmission can be estimated further, the EIRP value needed for phased array transmitting antenna by target range.The estimation equation of target range R is:
201gR＝EIRP
obj+G
PA/T+228.6-S/N-L
a,(dB)
In formula, EIRP
objthe radiant power of target, G
pA/ T is gain and the noise temperature ratio of phased array receiving antenna, and S/N is the signal to noise ratio of Received signal strength, L
ait is the summation of atmospheric attenuation, antenna pointing error etc.
Transmitting antenna EIRP accounting equation is: EIRP=201gR-G
obj/ T-228.6+E
b/ N
0+ R
b+ L
a, in (dB) formula, G
obj/ T is gain and the noise temperature ratio of intended receivers antenna, E
b/ N
0the bit noise power spectral density ratio of intended receivers, R
bbe message transmission rate, 201gR is signal space loss, L
ait is the summation of atmospheric attenuation, antenna pointing error etc.The smnr data that SNR estimator estimates send Target Distance Estimation device to carry out target range estimation, using this range estimation value as the basis of transmitting antenna EIRP value, obtain optimum EIRP value, target direction information and transmitting antenna EIRP Value Data deliver to ripple control device, are realized selection and the beam point steering of phased array transmitting antenna array element number of combinations by ripple control device.Ripple control device using the azimuth of target of input and angle of pitch information as transmitting antenna array element control data, to input transmitting antenna EIRP value calculating transmitting antenna array element quantity.The transmitting array element selected, by the power supply switch of the corresponding power amplifier chips of ripple control device gating, realizes power amplification and the radiation of signal.Transmitting antenna array element quantity N accounting equation is: 201gN=EIRP-101gP
0-101g π-101g η, (dB), in formula, P
0be single array element power amplifier power, η is combined coefficient.
After high-speed data is input to high-speed modulator, modulate data on and transmit on carrier wave, digital to analog converter DAC is sent to carry out signal reconstruction process, be input to frequency converter and carry out up-conversion, again after band pass filter BPF filtering, be input to the phase array transmitting array element that ripple control device is specified, realize the spatial beams synthesis pointing to target direction.
Claims (4)
1. the implementation method of a phased array antenna gain-adaptive control, it is characterized in that comprising the steps: that phase array receives the trim signal that array element receives echo signal formation, gun parallax signal and and signal, divide three tunnels to send into three corresponding frequency converters and carry out down-converted, the A-D converter ADC be connected by three correspondences is again sampled, deliver to acquisition and tracking device and carry out input and acquisition and tracking, export the directional information of the relative reception antenna of target, export a road and signal estimates the signal to noise ratio of Received signal strength by SNR estimator, the smnr data estimated is after the estimation of Target Distance Estimation device target range, basis using this range estimation value as transmitting antenna ERP EIRP value, the target direction information obtained and transmitting antenna EIRP Value Data are sent into ripple control device, ripple control device using input azimuth of target and angle of pitch information as transmitting antenna array element control data, transmitting antenna array element quantity is calculated to input transmitting antenna EIRP value, and the quantity of phased array transmitting antenna array element combination is selected and beam point steering, the high speed data modulations of input high-speed modulator is to transmitting on carrier wave, digital to analog converter DAC is sent to carry out signal reconstruction process, again through frequency converter up-conversion and band pass filter BPF filtering, the phase array that incoming wave control device is specified launches array element, realize the spatial beams synthesis pointing to target direction, wherein, the estimation equation that target range R adopts is:
20lgR＝EIRP
obj+G
PA/T+228.6-S/N-L
a,(dB)
In formula, EIRP
objthe radiant power of target, G
pA/ T is gain and the noise temperature ratio of phased array receiving antenna, and S/N is the signal to noise ratio of Received signal strength, L
ait is the summation of atmospheric attenuation, antenna pointing error; Transmitting antenna EIRP accounting equation is:
EIRP＝20lgR-G
obj/T-228.6+E
b/N
0+R
b+L
a,(dB)
In formula, G
obj/ T is gain and the noise temperature ratio of intended receivers antenna, E
b/ N
0the bit noise power spectral density ratio of intended receivers, R
bbe message transmission rate, 20lgR is signal space loss, L
ait is the summation of atmospheric attenuation, antenna pointing error etc.; Transmitting antenna array element quantity N accounting equation is:
20lgN＝EIRP-10lgP
0-10lgπ-10lgη,(dB)
In formula, P
0be single array element power amplifier power, η is combined coefficient.
2. by the implementation method that phased array antenna gain-adaptive according to claim 1 controls, it is characterized in that, acquisition and tracking device receive reception antenna array element formed trim signal, gun parallax signal and and signal after, by extracting signal phase, the azimuth of the relative phased array receiving antenna of real-time acquisition target and angle of pitch information, the beam position controlling transmit phased array antenna for ripple control device provides data.
3. by the implementation method that phased array antenna gain-adaptive according to claim 1 controls, it is characterized in that, SNR estimator receive with signal after, the signal to noise ratio of Received signal strength is obtained by envelope detection, smnr data send Target Distance Estimation device, utilize objective emission antenna EIRP value, receiving antenna gain and noise-temperature ratio G/T value, estimate the distance R of target, estimate the certain data-rate information of transmission and the EIRP value needed for phased array transmitting antenna further.
4. by the implementation method that a kind of phased array antenna gain-adaptive according to claim 1 controls, it is characterized in that, the transmitting array element selected, by the power supply switch of the corresponding power amplifier chips of ripple control device gating, realizes power amplification and the radiation of signal.
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| US10211530B2 (en) * | 2016-07-01 | 2019-02-19 | Gogo Llc | Dynamic effective radiated power (ERP) adjustment |
| CN207302311U (en) * | 2017-08-24 | 2018-05-01 | 深圳市大疆创新科技有限公司 | Remote Slave Set, remote controler and remote control system |
| CN107947807B (en) * | 2017-11-30 | 2020-11-03 | 贵州航天电子科技有限公司 | Single-pulse angle measurement channel combined echo receiving system |
| CN108900200B (en) * | 2018-06-21 | 2020-12-11 | 厦门大学 | Industrial industry-oriented transparent transmission wireless communication system |
| CN109547090A (en) * | 2018-11-26 | 2019-03-29 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method of adaptive adjustment satellite relay data transfer communications rate |
| CN109827472A (en) * | 2018-12-12 | 2019-05-31 | 中国人民解放军陆军工程大学 | Method and device for processing downlink signal and electronic equipment |
| CN111290434B (en) * | 2020-03-10 | 2023-07-25 | 英华达（南京）科技有限公司 | Unmanned aerial vehicle guiding method, system, equipment and storage medium |
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| EP0828352A2 (en) * | 1996-09-09 | 1998-03-11 | HE HOLDINGS, INC. dba HUGHES ELECTRONICS | Satellite power level monitoring system and method using digital signal processing |
| CN101207235A (en) * | 2007-12-18 | 2008-06-25 | 中国电子科技集团公司第五十四研究所 | Mobile satellite communication phase array antenna |
| CN101764285A (en) * | 2010-01-27 | 2010-06-30 | 北京握奇数据系统有限公司 | Method for controlling antenna wave beam to point to moving vehicle, antenna and no-stop parking charge system |
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|---|---|---|---|---|
| US6703976B2 (en) * | 2001-11-21 | 2004-03-09 | Lockheed Martin Corporation | Scaleable antenna array architecture using standard radiating subarrays and amplifying/beamforming assemblies |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0828352A2 (en) * | 1996-09-09 | 1998-03-11 | HE HOLDINGS, INC. dba HUGHES ELECTRONICS | Satellite power level monitoring system and method using digital signal processing |
| CN101207235A (en) * | 2007-12-18 | 2008-06-25 | 中国电子科技集团公司第五十四研究所 | Mobile satellite communication phase array antenna |
| CN101764285A (en) * | 2010-01-27 | 2010-06-30 | 北京握奇数据系统有限公司 | Method for controlling antenna wave beam to point to moving vehicle, antenna and no-stop parking charge system |
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