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一種虛擬波束形成自適應加權空間平滑算法

丁前軍,  王永良,  張永順,  陳輝

丁前軍, 王永良, 張永順, 陳輝. 一種虛擬波束形成自適應加權空間平滑算法[J]. 電子與信息學報, 2006, 28(12): 2263-2268.
引用本文: 丁前軍, 王永良, 張永順, 陳輝. 一種虛擬波束形成自適應加權空間平滑算法[J]. 電子與信息學報, 2006, 28(12): 2263-2268.
Ding Qian-jun, Wang Yong-liang, Zhang Yong-shun, Chen Hui. An Adaptive Weighted Spatial Smoothing Algorithm Utilizing Virtual Beamforming[J]. Journal of Electronics & Information Technology, 2006, 28(12): 2263-2268.
Citation: Ding Qian-jun, Wang Yong-liang, Zhang Yong-shun, Chen Hui. An Adaptive Weighted Spatial Smoothing Algorithm Utilizing Virtual Beamforming[J]. Journal of Electronics & Information Technology, 2006, 28(12): 2263-2268.

一種虛擬波束形成自適應加權空間平滑算法

An Adaptive Weighted Spatial Smoothing Algorithm Utilizing Virtual Beamforming

  • 摘要: 該文提出了一種用于自適應陣列的自適應加權空間平滑算法。通過構造虛擬自適應波束形成問題求取用于子陣協(xié)方差矩陣加權的加權向量，然后進行加權空間平滑自適應波束形成。理論分析與仿真結果表明，新算法能更有效地降低期望信號和干擾之間的相關性，使得用于空間平滑的子陣數(shù)減少，以降低陣列孔徑損失。
    Abstract: An adaptive weighted spatial smoothing algorithm is developed for adaptive arrays. By constructing a virtual issue of adaptive beamforming, the weight vector is obtained to weight the covariance matrixes of subarrays. Then, weighted spatial smoothing is processed and beamforming follows that. The theoretical analysis and simulation results show that the new algorithm can decorrelate the desired signal and the coherent interferences more efficiently, with the result that the number of sub-arrays needed decreases and the array aperture loss is reduced in spatial smoothing.
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  • Shan T J, Kailath T. Adaptive beamforming for coherent signals and interference[J].IEEE Trans. on Acoustics, Speech, and Signal Processing.1985, 33 (3):527-536[2]Yeh C C, Wang W D. Coherent interference suppression by an antenna array of arbitrary geometry[J].IEEE Trans. on Antennas and Propagation.1989, 37 (10):1317-1322[3]Lee T S, Lin T T. Coherent interference suppression with complementally transformed adaptive beamformer[J].IEEE Trans. on Antennas and Propagation.1998, 46 (5):609-617[4]Lu Ming, He Zhen-ya. Adaptive beamforming using split-polarity transformation for coherent signal and interference[J].IEEE Trans. on Antennas and Propagation.1993, 41(3):314-324[5]趙永波，張守宏. 存在相干干擾時的最優(yōu)波束形成. 通信學報，2002, 23 (2): 113-121.[6]Elmaraazey M. An adaptive spatial smoothing technique for beamforming in the presence of correlated arrivals. Proceedings of the IEEE International Symposium on Circuits and Systems, Chicago, Illinois, USA, May 1993, Vol. 1: 208-211.[7]Tang Jun, Peng Ying-ning. A new adaptive spatial smoothing method. Proceedings of the IEEE International Symposium on Antennas and Propagation Society, Columbus, OH, Jun. 2003,Vol. 3: 284-287.[8]Pei S C, Yeh C C, Chiu S C. Modified spatial smoothing for coherent jammer suppression without signal cancellation[J].IEEE Trans. on Acoustics, Speech, and Signal Processing.1988, 36(3):412-414[9]Wang Bu-hong, Wang Yong-liang, Chen Hui. Weighted spatial smoothing for direction-of-arrival estimation of coherent signals. Proceedings of IEEE Antennas and Propagation Society International Symposium, San Antonio, Texas, USA, Jun. 2002, Vol. 2: 668-671.
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  • 文章訪問數(shù):  2517
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  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2005-03-10
  • 修回日期:  2005-07-25
  • 刊出日期:  2006-12-19

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