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采用单次快拍数据实现相干信号DOA估计

谢鑫 李国林 刘华文

谢鑫, 李国林, 刘华文. 采用单次快拍数据实现相干信号DOA估计[J]. 电子与信息学报, 2010, 32(3): 604-608. doi: 10.3724/SP.J.1146.2009.00321
引用本文: 谢鑫, 李国林, 刘华文. 采用单次快拍数据实现相干信号DOA估计[J]. 电子与信息学报, 2010, 32(3): 604-608. doi: 10.3724/SP.J.1146.2009.00321
Xie Xin, Li Guo-lin, Liu Hua-wen. DOA Estimation of Coherent Signals Using one Snapshot[J]. Journal of Electronics & Information Technology, 2010, 32(3): 604-608. doi: 10.3724/SP.J.1146.2009.00321
Citation: Xie Xin, Li Guo-lin, Liu Hua-wen. DOA Estimation of Coherent Signals Using one Snapshot[J]. Journal of Electronics & Information Technology, 2010, 32(3): 604-608. doi: 10.3724/SP.J.1146.2009.00321

采用单次快拍数据实现相干信号DOA估计

doi: 10.3724/SP.J.1146.2009.00321

DOA Estimation of Coherent Signals Using one Snapshot

  • 摘要: 该文针对均匀线性阵列的相干信号DOA估计问题,提出了一种基于单次快拍数据的解相干算法,该算法直接利用快拍数据构造一个Toeplitz矩阵,经理论推导,该Toeplitz矩阵的秩不受信号的相干性影响,仅和入射信号的个数有关,因此对该矩阵进行特征值分解可得到正确的信号子空间和噪声子空间,结合MUSIC,ESPRIT等子空间算法,即可实现对相干信号的DOA估计。数值仿真验证了该算法的有效性。
  • Pillai S U and Kwon B H. Forward/backward smoothingtechniques for coherent signal identification[J].IEEETransactions on Acoustics, Speech, Signal Processing.1989,37(1):8-15[2]Dmochowski J, Benesty J, and Affes S. Direction of arrivalestimation using eigenanalysis of the parameterized spatialcorrelation matrix[C]. ICASSP 2007, Honolulu, Hawaii,U.S.A, 2007, Vol 1: 1-4.[3]Ye Zhong-fu, Xiang Li, and Xu Xu. DOA estimation withcircular array via spatial averaging algorithm[J].IEEEAntennas and Wireless Propagation Letters.2007, 6(1):74-76[4]Xu Di-hua, Chen Jian-wen, and Wu You. A novel subspacecoherent signal processing algorithm for high-resolution DOAestimation[C]. International Symposium on Intelligent SignalProcessing and Communications, 2006. Yonago, Japan. 12-15Dec. 2006: 653-656.[5]Han Fang-ming and Zhang Xian-da. An ESPRIT-likealgorithm for coherent DOA estimation[J].IEEE Antennasand Wireless Propagation Letters.2005, 4(6):443-446[6]Liu Li-guo.[J].Gai Yi-bing, Wang Hai-song, and Ding Guo-wen.An improved ESPRIT-like algorithm for coherent signal andits application for 2-D DOA estimation[C]. 7th InternationalSymposium on Antennas, Propagation EM Theory.2006,:-[7]Wang Tao, Yang Li-sheng, Lei Jian-mei, and Yang Shi-zhong.A modified MUSIC to estimate DOA of the coherentnarrowband sources based on UCA[C]. InternationalConference on Communication Technology, 2006. Guilin,China. 27-30 Nov 2006: 1-4.Gao Shu-yan, Chen Hui, Wang Yong-liang, and MengCang-zhen. A novel algorithm for estimating DOA ofcoherent signals on uniform circular array[C]. InternationalConference on Radar, 2006. Shanghai, China. 16-19 Oct 2006:1-4.[8]Jabr K A, Kwon H M, and Tayem N. Modified UCA-ESPRITfor estimating DOA of coherent signals using one snapshot[C].2008 IEEE 67thVehicular Technology Conference. MarinaBay, Singapore. 11-14 May 2008: 290-293.[9]Salameh A and Bagby J. Angle of arrival estimation withoutEVD for coherent sources[C]. International Conference onTelecommunications, 2008. St. Petersburg, Russian. 16-19June 2008: 1-4.[10]Kaneko K and Sano A. Music-like iterative DOA estimationin multipath environments[C]. 5th IEEE Sensor Array andMultichannel Signal Processing Workshop, 2008. Darmstadt,Germany. 21-23 July 2008: 212-215.[11]Schmidt R O. Multiple emitter location and signal parameterestimation[J].IEEE Transactions on Antennas andPropagation.1986, 34(3):276-280[12]Roy R and Kailath T. ESPRIT-estimation of signalparameters via rotational invariance techniques[J].IEEETransactions on Acoustics, Speech, Signal Processing.1989,37(7):984-995
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出版历程
  • 收稿日期:  2009-03-14
  • 修回日期:  2009-09-23
  • 刊出日期:  2010-03-19

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