基于子带最大信干噪比准则的宽带发射ADBF研究
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摘要
研究了宽带发射自适应数字波束形成(ADBF)算法,首先使用分析滤波器组将每个阵元宽带发射信号划分为子带信号,并基于最大信干噪比(MSINR)准则计算每个子带信号阵列ADBF权矢量,最后使用综合滤波器形成宽带发射自适应波束。理论分析和仿真实验表明,本文算法能有效校正宽带信号孔径渡越效应,在干扰方向形成深凹口,且算法运算量较小,易于工程实施。
This paper describes the algorithm of wideband transmitting adaptive digital beamforming(ADBF).Firstly,we use the analysis filters to partition the wideband transmitting signal into independent subbands and the ADBF weight vector of each subband is computed by the maximum signal-to-interference-plus-noise-ratio(MSINR)criterion.Finally,the wideband transmitting adaptive beam is synthesized through the synthesis filters.Theoretical analysis and simulation experiments show that the proposed algorithm can effectively calibrate the aperture crossing effect of wideband signal and form deep nulls in the directions of the interferences.In addition,this algorithm has less computation and is efficient in engineering implementation.
This paper describes the algorithm of wideband transmitting adaptive digital beamforming(ADBF).Firstly,we use the analysis filters to partition the wideband transmitting signal into independent subbands and the ADBF weight vector of each subband is computed by the maximum signal-to-interference-plus-noise-ratio(MSINR)criterion.Finally,the wideband transmitting adaptive beam is synthesized through the synthesis filters.Theoretical analysis and simulation experiments show that the proposed algorithm can effectively calibrate the aperture crossing effect of wideband signal and form deep nulls in the directions of the interferences.In addition,this algorithm has less computation and is efficient in engineering implementation.
引文
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[4]王明,柳桃荣.发射多波束形成技术在电子战中的应用[J].舰船电子对抗,2017,40(2):32-34.
[5]张晨,赖清华.相控阵雷达受孔径渡越时间影响的研究[J].微波学报,2017,33(4):67-69.
[6]仇光锋,朱力.宽带相控阵雷达孔径渡越现象研究[J].中国电子科学研究院学报,2010,5(4):354-359.
[7]VOURAS P G,TRAN T D.Robust transmit nulling in wideband arrays[J].IEEE Transactions on Signal Processing,2014,62(14):3706-3719.
[8]VOURAS P G,GRAAF J D.Robust transmit nulling in phased array antennas[C].Signals,Systems and Computers,IEEE,2012:2101-2103.
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[10]陈晖,刘成城,李冬海,等.基于子带SDL的宽带自适应波束形成[J].信号处理,2012,28(12):1685-1691.
[11]MAILLOUX R J.Phased array antenna handbook[J].Systems Engineering&Electronics,2011,28(12):1816-1818.
[12]VAIDYANATHAN P P.Multirate Systems and Filter Banks[M].Englewood Cliffs,NJ:PrenticeHall,1993.
[13]WEISS S,STEWART R W.On adaptive filtering in oversampled subbands[J].University of Strathclyde,1998.
[14]周翠,王路.多抽样率信号处理理论及其应用研究[J].软件导刊,2007(21):35-37.
[15]MANSOUR M F.On the optimization of oversampled dft filter banks[J].IEEE Signal Processing Letters,2007,14(6):389-392.
[2]SMITH S T.Optimum phase-only adaptive nulling[J].IEEE Transactions on Signal Processing,2002,47(7):1835-1843.
[3]WEBSTER T,HIGGINS T,SHACKELFORD A K,et al.Phase-only adaptive spatial transmit nulling[C].IEEE National Radar Conference,2015:931-936.
[4]王明,柳桃荣.发射多波束形成技术在电子战中的应用[J].舰船电子对抗,2017,40(2):32-34.
[5]张晨,赖清华.相控阵雷达受孔径渡越时间影响的研究[J].微波学报,2017,33(4):67-69.
[6]仇光锋,朱力.宽带相控阵雷达孔径渡越现象研究[J].中国电子科学研究院学报,2010,5(4):354-359.
[7]VOURAS P G,TRAN T D.Robust transmit nulling in wideband arrays[J].IEEE Transactions on Signal Processing,2014,62(14):3706-3719.
[8]VOURAS P G,GRAAF J D.Robust transmit nulling in phased array antennas[C].Signals,Systems and Computers,IEEE,2012:2101-2103.
[9]高西全丁玉美阔永红.数字信号处理-原理.实现及应用[M].电子工业出版社,2007.
[10]陈晖,刘成城,李冬海,等.基于子带SDL的宽带自适应波束形成[J].信号处理,2012,28(12):1685-1691.
[11]MAILLOUX R J.Phased array antenna handbook[J].Systems Engineering&Electronics,2011,28(12):1816-1818.
[12]VAIDYANATHAN P P.Multirate Systems and Filter Banks[M].Englewood Cliffs,NJ:PrenticeHall,1993.
[13]WEISS S,STEWART R W.On adaptive filtering in oversampled subbands[J].University of Strathclyde,1998.
[14]周翠,王路.多抽样率信号处理理论及其应用研究[J].软件导刊,2007(21):35-37.
[15]MANSOUR M F.On the optimization of oversampled dft filter banks[J].IEEE Signal Processing Letters,2007,14(6):389-392.