适用于子空间信号失配的参数可调多通道自适应检测器
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摘要
针对存在信号失配时的子空间信号检测问题,该文提出一种具有恒虚警特性的参数可调检测器。根据系统设计需要,通过调节参数,参数可调检测器可实现对失配信号的灵活检测。与现有检测器相比,当不存在信号失配时,提出的可调检测器能提供更高的检测概率。该文推导了可调检测器解析的检测概率和虚警概率,并通过蒙特卡洛仿真进行了验证。
For the detection issue in the presence of subspace signal mismatch, a parametrically tunable detector is proposed, which processes the Constant False Alarm Rate(CFAR) properties. By changing the tunable parameter, the proposed detector can flexibly detect the mismatched subspace signal. Moreover, in the case of no signal mismatch, the proposed tunable detector can even achieve better detection performance than the existing detectors. The expressions for the probabilities of detection and false alarm are proposed and verified with Monte Carlo simulations.
For the detection issue in the presence of subspace signal mismatch, a parametrically tunable detector is proposed, which processes the Constant False Alarm Rate(CFAR) properties. By changing the tunable parameter, the proposed detector can flexibly detect the mismatched subspace signal. Moreover, in the case of no signal mismatch, the proposed tunable detector can even achieve better detection performance than the existing detectors. The expressions for the probabilities of detection and false alarm are proposed and verified with Monte Carlo simulations.
引文
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[19]LIU J,ZHANG Z J,and YANG Y.Optimal waveform design for generalized likelihood ratio and adaptive matched filter detectors using a diversely polarized antenna[J].Signal Processing,2012,92(4):1126-1131.
[20]LIU W,XIE W,LIU J,et al.Adaptive double subspace signal detection in Gaussian background Part I:Homogeneous environments[J].IEEE Transactions on Signal Processing,2014,62(9):2345-2357.
[21]REN B,SHI L,and WANG G.Polarimetric target detection using statistic of the degree of polarization[J].Progress In Electromagnetics Research M,2016,46:143-152.
[22]CIUONZO D,DE Maio A,and ORLANDO D.A unifying framework for adaptive radar detection in homogeneous plus structured interference[J].IEEE Transactions on Signal Processing,2016,64(11):2894-2906.
[23]LIU W,WANG Y L,LIU J,et al.Design and performance analysis of adaptive subspace detectors in orthogonal interference and Gaussian noise[J].IEEE Transactions on Aerospace and Electronic Systems,accepted,doi:10.1109/TAES.2016.140152.
[24]LIU W,WANG Y,LIU J,et al.Robust GLRT approaches to signal detection in the presence of spatial-temporal uncertainty[J].Signal Processing,2015,118:272-284.
[25]LIU J,LIU W,CHEN B,et al.Modified rao test for multichannel adaptive signal detection[J].IEEE Transactions on Signal Processing,2016,64(3):714-725.
[26]PULSONE N B amd RADER C M.Adaptive beamformer orthogonal rejection test[J].IEEE Transactions on Signal Processing,2001,49(3):521-529.
[27]HAO C,SHANG X,BANDIERA F,et al.Bayesian radar detection with orthogonal rejection[J].IEICE Transactions on Fundamentals of Electronics,Communications and Computer Sciences,2012,E95-A(2):596-599.
[28]RICHMOND C D.Performance of the adaptive sidelobe blanker detection algorithm in homogeneous environments[J].IEEE Transactions on Signal Processing,2000,48(5):1235-1247.
[29]HAO C,LIU B,and CAI L.Performance analysis of a two-stage rao detector[J].Signal Processing,2011,91(8):2141-2146.
[30]DE Maio A and ORLANDO D.A survey on two-stage decision schemes for point-like targets in gaussian interference[J].IEEE Aerospace and Electronic Systems Magazine,2016,31(4):20-29.
[31]KALSON S Z.An adaptive array detector with mismatched signal rejection[J].IEEE Transactions on Aerospace and Electronic Systems,1992,28(1):195-207.
[32]LIU W,XIE W,and WANG Y.Parametric detector in the situation of mismatched signals[J].IET Radar,Sonar&Navigation,2014,8(1):48-53.
[33]LIU W,LIU J,ZHANG C,et al.Performance prediction of subspace-based adaptive detectors with signal mismatch[J].Signal Processing,2016,123:122-126.
[34]LIU W,LIU J,HUANG L,et al.Distributed target detectors with capabilities of mismatched subspace signal rejection[J].IEEE Transactions on Aerospace and Electronic Systems,accepted.
[35]RAGHAVAN R S,QIU H F,and MCLAUGHLIN D J.Cfar detection in clutter with unknown correlation properties[J].IEEE Transactions on Aerospace and Electronic Systems,1995,31(2):647-657.
[36]KELLY E J and FORSYTHE K M.Adaptive detection and parameter estimation for multidimensional signal models[R].Lincoln Laboratory,Lexington,1989.
[2]王永良,彭应宁.空时自适应信号处理[M].北京:清华大学出版社,2000.WANG Y and PENG Y.Space-time Adaptive Processing[M].Beijing:Tsinghua University Press,2000.
[3]KLEMM R.Principles of Space-time Adaptive Processing[M].3rd ed.London:The Institution of Electrical Engineers,2006.
[4]GUERCI J R.Space-time Adaptive Processing for Radar[M].2nd ed.Boston:Artech House,2014.
[5]王永良,刘维建,谢文冲,等.机载雷达空时自适应检测方法研究进展[J].雷达学报,2014,3(2):201-207.WANG Y,LIU W,and XIE W,et al.Research progress of space-time adaptive detection for airborne radar[J].Journal of Radars,2014,3(2):201-207.
[6]LIU W,WANG Y,and XIE W.Fisher information matrix,Rao test,and Wald test for complex-valued signals and their applications[J].Signal Processing,2014,94(1):1-5.
[7]KELLY E J.An adaptive detection algorithm[J].IEEETransactions on Aerospace and Electronic Systems,1986,22(1):115-127.
[8]ROBEY F C,FUHRMANN D R,KELLY E J,et al.A CFARadaptive matched filter detector[J].IEEE Transactions on Aerospace and Electronic Systems,1992,28(1):208-216.
[9]DE MAIO A.Rao test for adaptive detection in Gaussian interference with unknown covariance matrix[J].IEEETransactions on Signal Processing,2007,55(7):3577-3584.
[10]LIU W,LIU J,HU X,et al.Statistical performance analysis of the adaptive orthogonal rejection detector[J].IEEE Signal Processing Letters,2016,23(6):873-877.
[11]简涛,苏峰,何友,等.复合高斯杂波下距离扩展目标的自适应检测[J].电子学报,2012,40(5):990-994.JIAN T,SU F,HE Y,et al.Adaptive range-spread target detectors for compound-Gaussian clutter[J].Acta Electronica Sinica,2012,40(5):990-994.
[12]邹鲲,廖桂生,李军,等.非高斯杂波下知识辅助检测器敏感性分析[J].电子与信息学报,2014,36(1):181-186.doi:10.3724/SP.J.1146.2013.00320.ZOU K,LIAO G,LI J,et al.Sensitivity analysis of knowledge aided detector in non-Gaussian clutter[J].Journal of Electronics&Information Technology,2014,36(1):181-186.doi:10.3724/SP.J.1146.2013.00320.
[13]施赛楠,水鹏朗,刘明.基于复合高斯杂波纹理结构的相干检测[J].电子与信息学报,2016,38(8):1969-1976.doi:10.11999/JEIT151194.SHI S,SHUI P,and LIU M.Coherent detection based on texture structure in compound-gaussian clutter[J].Journal of Electronics&Information Technology,2016,38(8):1969-1976.doi:10.11999/JEIT151194.
[14]KONG L,LI N,CUI G,et al.Adaptive bayesian detection for multiple-input multiple-output radar in compound-gaussian clutter with random texture[J].IET Radar,Sonar&Navigation,2016,10(4):689-698.
[15]SHUI P L,LIU M,and XU S W.Shape-parameter-dependent coherent radar target detection in k-distributed clutter[J].IEEE Transactions on Aerospace and Electronic Systems,2016,52(1):451-465.
[16]GINI F and FARINA A.Matched subspace cfar detection of hovering helicopters[J].IEEE Transactions on Aerospace&Electronic Systems,1999,35(4):1293-1305.
[17]LEI S,ZHAO Z,NIE Z,et al.Adaptive polarimetric detection method for target in partially homogeneous background[J].Signal Processing,2015,106:301-311.
[18]PASTINA D,LOMBARDO P,and BUCCIARELLI T.Ad a ptive polarimetric target detection with coherent radar Part I:Detection against Gaussian background[J].IEEE Transactions on Aerospace and Electronic Systems,2001,37(4):1194-1206.
[19]LIU J,ZHANG Z J,and YANG Y.Optimal waveform design for generalized likelihood ratio and adaptive matched filter detectors using a diversely polarized antenna[J].Signal Processing,2012,92(4):1126-1131.
[20]LIU W,XIE W,LIU J,et al.Adaptive double subspace signal detection in Gaussian background Part I:Homogeneous environments[J].IEEE Transactions on Signal Processing,2014,62(9):2345-2357.
[21]REN B,SHI L,and WANG G.Polarimetric target detection using statistic of the degree of polarization[J].Progress In Electromagnetics Research M,2016,46:143-152.
[22]CIUONZO D,DE Maio A,and ORLANDO D.A unifying framework for adaptive radar detection in homogeneous plus structured interference[J].IEEE Transactions on Signal Processing,2016,64(11):2894-2906.
[23]LIU W,WANG Y L,LIU J,et al.Design and performance analysis of adaptive subspace detectors in orthogonal interference and Gaussian noise[J].IEEE Transactions on Aerospace and Electronic Systems,accepted,doi:10.1109/TAES.2016.140152.
[24]LIU W,WANG Y,LIU J,et al.Robust GLRT approaches to signal detection in the presence of spatial-temporal uncertainty[J].Signal Processing,2015,118:272-284.
[25]LIU J,LIU W,CHEN B,et al.Modified rao test for multichannel adaptive signal detection[J].IEEE Transactions on Signal Processing,2016,64(3):714-725.
[26]PULSONE N B amd RADER C M.Adaptive beamformer orthogonal rejection test[J].IEEE Transactions on Signal Processing,2001,49(3):521-529.
[27]HAO C,SHANG X,BANDIERA F,et al.Bayesian radar detection with orthogonal rejection[J].IEICE Transactions on Fundamentals of Electronics,Communications and Computer Sciences,2012,E95-A(2):596-599.
[28]RICHMOND C D.Performance of the adaptive sidelobe blanker detection algorithm in homogeneous environments[J].IEEE Transactions on Signal Processing,2000,48(5):1235-1247.
[29]HAO C,LIU B,and CAI L.Performance analysis of a two-stage rao detector[J].Signal Processing,2011,91(8):2141-2146.
[30]DE Maio A and ORLANDO D.A survey on two-stage decision schemes for point-like targets in gaussian interference[J].IEEE Aerospace and Electronic Systems Magazine,2016,31(4):20-29.
[31]KALSON S Z.An adaptive array detector with mismatched signal rejection[J].IEEE Transactions on Aerospace and Electronic Systems,1992,28(1):195-207.
[32]LIU W,XIE W,and WANG Y.Parametric detector in the situation of mismatched signals[J].IET Radar,Sonar&Navigation,2014,8(1):48-53.
[33]LIU W,LIU J,ZHANG C,et al.Performance prediction of subspace-based adaptive detectors with signal mismatch[J].Signal Processing,2016,123:122-126.
[34]LIU W,LIU J,HUANG L,et al.Distributed target detectors with capabilities of mismatched subspace signal rejection[J].IEEE Transactions on Aerospace and Electronic Systems,accepted.
[35]RAGHAVAN R S,QIU H F,and MCLAUGHLIN D J.Cfar detection in clutter with unknown correlation properties[J].IEEE Transactions on Aerospace and Electronic Systems,1995,31(2):647-657.
[36]KELLY E J and FORSYTHE K M.Adaptive detection and parameter estimation for multidimensional signal models[R].Lincoln Laboratory,Lexington,1989.