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雷达阵列中前后向平滑协方差矩阵估计应用 被引量：3

Application of forward-backward averaging covariance matrix estimation in radar array
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摘要 在雷达阵列中的DOA估计中,在保证性能前提下实现算法简化,一直是人们追求的目标。前后向平滑是阵列信号处理中协方差估计的一种算法,而当该算法应用于波束空间的阵列信号处理时,可以用实数运算代替复数运算,从而减少运算量。分别介绍了奇数和偶数维条件下,算法的实现方法,并分析了相应的运算量同各个参数的关系。同传统前向平滑比较表明,该算法可以减少50%左右的运算量。 In the radar array signal processing for D0A estimation,it is an important object to make the method more easy and keep the performance well at the same time.When contacting the forward-backward averaging algorithm,which is used for covariance matrix estimation,with beamspace array signal processing,the complex computation will be replaced by real computation. The two methods are developped according to odd or even dimension.To compare the new algrithm with classic forward averaging estimation in beamspace.The result shows that the computing load is reduced to 50%.
作者 曾浩 周国 郑芳
机构地区 重庆大学通信工程学院
出处 《计算机工程与应用》 CSCD 北大核心 2009年第18期227-230,共4页 Computer Engineering and Applications
基金 国家自然科学基金No.60672097 重庆大学创新基金(No.2007CD056)~~
关键词 协方差矩阵 前后向平滑 波束空间 运算量 covariance matrix forward-backward averaging beamspace computing load
分类号 TP391.9 [自动化与计算机技术—计算机应用技术]
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参考文献8

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二级参考文献6

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同被引文献17

  • 1曾浩,刘玲,杨士中.基于对角负载的波束空间波束合成器[J].系统工程与电子技术,2007,29(7):1041-1044. 被引量：7
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  • 3HU Hang, DENG Xin-hong. An improved LCMV method at subarraylevel[C]//Proc of IET International Conference on Wireless, Mobileand Multimedia Networks. 20()6:1-4.
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  • 7SU Hong-tao, LIU Hong-wei, SHUI Peng-lang. Adaptive beamform-ing for nonstationary HF interference cancellation in skywave over-the-horizon radar[J]. IEEE Trans on Aerospace and Electronic Sys-tems,2013,49(1) :312-324.
  • 8ASTUDILLO R F, KOLOSSA D, ABAD A,et al. Integration ofbeamform and uncertainty-of-observation techniques for robust ASR inmulti-source environments[J]. Computer Speech And Language,2012,27(3) :837-850.
  • 9CHOI Yang-ho. Robust adaptive beamforming method using principaleigenpairs with modification of PASTd [J]. Digital Signal Process-ing,2013,27(2) :595-600.
  • 10CHO S W, LEE J H. Efficient implementation of the capon beam-forming using the Levenberg-Marquardt scheme for two dimensionalAOA estimation [J]. Progress in 曰ectromagnetics Research,2013,137(2) :29-34.

引证文献3

二级引证文献10

计算机工程与应用
2009年 第18期

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