共形阵列宽带波束形成设计与实现
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摘要
针对大规模共形阵列波束形成问题,提出一种宽带信号数字波束形成方法,介绍了该方法的具体实现过程,该波束形成流程主要包括子阵内和子阵间波束形成2部分。由地平坐标系中目标位置推导出子阵视线坐标系目标来波方向后,对宽带数字波束形成方法进行理论推导:子阵内通过幅相加权、子阵间进行时延补偿和相位加权。通过软件仿真和原理样机试验,充分验证了该方法正确、可行。
A wideband digital beamforming method for conformal array antenna is proposed for beamforming of large-scale conformal array,and the realization process of the method is introduced. The flow of beamforming mainly includes beamforming in and between subarrays.After deducing the direction of arrival in line-of-sight coordinate system from target direction in geodetic coordinate system,the theoretical derivation of wideband digital beamforming is conducted,including amplitude-phase weighting in subarrays,and time-delay compensation and phase weighting between subarrays. The correctness and feasibility of the method are verified through software simulation and principle prototype experiment.
A wideband digital beamforming method for conformal array antenna is proposed for beamforming of large-scale conformal array,and the realization process of the method is introduced. The flow of beamforming mainly includes beamforming in and between subarrays.After deducing the direction of arrival in line-of-sight coordinate system from target direction in geodetic coordinate system,the theoretical derivation of wideband digital beamforming is conducted,including amplitude-phase weighting in subarrays,and time-delay compensation and phase weighting between subarrays. The correctness and feasibility of the method are verified through software simulation and principle prototype experiment.
引文
[1]吴海洲,王鹏毅,郭肃丽.全空域相控阵测控系统波束形成分析[J].无线电工程,2011,41(11):13-15.
[2]HENDERSON M,DAVIS M B,HUISJEN M.GDPAA Advanced Technology Demonstration Overview and Results[C]∥Phased Array Systems and Technology(Array),IEEE International Symposium on,2010:140-143.
[3]宋广怡.全空域测控系统数字波束形成技术研究[J].无线电工程,2016,46(3):41-44.
[4]AHN H,TOMASIC B,LIU S.Digital Beamforming in a Large Conformal Phased Array Antenna for Satellite Operations Support:Architecture,Design,and Development[J].IEEE International Symposium on Phased Array Systems and Technology,2010:423-431.
[5]丁静.稳健数字波束形成算法研究[J].无线电通信技术,2012,38(6):30-31.
[6]张光义.相控阵雷达原理[M].北京:国防工业出版社,2009.
[7]RASEKH Meysam,SEYDNEJAD Saeid R.Design of an Adaptive Wideband Beamforming Algorithm for Conformal Arrays[J].IEEE Communications Letters,2014,18(11):1 955-1 958.
[8]吴素丽.一种宽带恒定束宽DBF技术实现方法[J].无线电通信技术,2013,39(6):40-43.
[9]TRUCCO Andrea,CURLETTO Simone.Flattening the Side-Lobes of Wide-Band Beam Patterns[J].IEEE Journal of Oceanic Engineering,2003,28(4):760-762.
[10]JOVANOVIC D G,DIAZ C J.One Structure for Widebandwidth and High-resolution Fractional Delay Filter[C]∥IEEE International Conference on Electronics Circuits and Systems,2002:899-902.
[11]孟玮,刘莹,张娅楠.下行宽带信号天线组阵试验验证及分析[J].无线电工程,2014,44(9):28-31.
[12]刘张林.基于分数时延的宽带数字波束形成技术[J].现代电子技术,2013,36(5):24-26.
[13]耿虎军,郭肃丽,王鹏毅,等.相控阵多目标测控系统中的坐标转换[J].飞行器测控学报,2010,29(6):24-28.
[14]DENG T B.Symmetry-based Low-complexity Variable Fractional-delay FIR Filters[C]∥IEEE International Symposium on Communications and Information Technologies,2004:194-199.
[15]顾明超,李倩.宽带数字下变频器的FPGA实现[J].无线电通信技术,2014,40(5):69-72.
[16]朱彬,朱晓章,杨仕甫,等.宽带分数延时滤波器的优化设计及FPGA实现[J].现代雷达,2012,34(10):28-31.
[17]李辉,杨挺,王晖.基于FPGA的通用传感器信号处理系统设计[J].传感器与微系统,2016,35(3):105-107.
[2]HENDERSON M,DAVIS M B,HUISJEN M.GDPAA Advanced Technology Demonstration Overview and Results[C]∥Phased Array Systems and Technology(Array),IEEE International Symposium on,2010:140-143.
[3]宋广怡.全空域测控系统数字波束形成技术研究[J].无线电工程,2016,46(3):41-44.
[4]AHN H,TOMASIC B,LIU S.Digital Beamforming in a Large Conformal Phased Array Antenna for Satellite Operations Support:Architecture,Design,and Development[J].IEEE International Symposium on Phased Array Systems and Technology,2010:423-431.
[5]丁静.稳健数字波束形成算法研究[J].无线电通信技术,2012,38(6):30-31.
[6]张光义.相控阵雷达原理[M].北京:国防工业出版社,2009.
[7]RASEKH Meysam,SEYDNEJAD Saeid R.Design of an Adaptive Wideband Beamforming Algorithm for Conformal Arrays[J].IEEE Communications Letters,2014,18(11):1 955-1 958.
[8]吴素丽.一种宽带恒定束宽DBF技术实现方法[J].无线电通信技术,2013,39(6):40-43.
[9]TRUCCO Andrea,CURLETTO Simone.Flattening the Side-Lobes of Wide-Band Beam Patterns[J].IEEE Journal of Oceanic Engineering,2003,28(4):760-762.
[10]JOVANOVIC D G,DIAZ C J.One Structure for Widebandwidth and High-resolution Fractional Delay Filter[C]∥IEEE International Conference on Electronics Circuits and Systems,2002:899-902.
[11]孟玮,刘莹,张娅楠.下行宽带信号天线组阵试验验证及分析[J].无线电工程,2014,44(9):28-31.
[12]刘张林.基于分数时延的宽带数字波束形成技术[J].现代电子技术,2013,36(5):24-26.
[13]耿虎军,郭肃丽,王鹏毅,等.相控阵多目标测控系统中的坐标转换[J].飞行器测控学报,2010,29(6):24-28.
[14]DENG T B.Symmetry-based Low-complexity Variable Fractional-delay FIR Filters[C]∥IEEE International Symposium on Communications and Information Technologies,2004:194-199.
[15]顾明超,李倩.宽带数字下变频器的FPGA实现[J].无线电通信技术,2014,40(5):69-72.
[16]朱彬,朱晓章,杨仕甫,等.宽带分数延时滤波器的优化设计及FPGA实现[J].现代雷达,2012,34(10):28-31.
[17]李辉,杨挺,王晖.基于FPGA的通用传感器信号处理系统设计[J].传感器与微系统,2016,35(3):105-107.