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ESPRIT算法在单快拍阵列信号中的应用 被引量:1

The Application of ESPRIT Algorithm in Single Snapshot Array Signal Processing
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摘要 ESPRIT算法利用旋转不变技术估计信号参数,是近年来提出的阵列信号处理理论的一个新领域,它具有高分辨率、高精度、不需空间搜索等优点。单快拍总被当作相干信号处理,本文采用了Teoplitz结构协方差矩阵估计,起了空间平滑作用,所以可以估计相于信号源的波达方向(DOA),与标准空间平滑协方差矩阵估计相比较,Teoplitz协方差阵估计在总体上提高了信噪比,并且不牺牲阵列孔径。 计算机模拟结果表明,基于Teoplitz结构协方差矩阵的TLS-ESPRIT算法在20dB信噪比下,可以分辨出相隔0.2瑞利波束宽度的空间信号。 The Estimate Signal Parmeter Via Rotational Invariance Technique (ESPRIT) is a new algorithm to estimate signal parameters. The Teoplitz covariance matrix is adopted in this paper,so that the ESPRIT algorithm can be used to estimate the direction-of-arrival(DOA) for single snapshot array signals. The simulation results indicate that this method is better than the standard spatial smoothing algorithm.
作者 刘渝 朱兆达
出处 《南京航空学院学报》 CSCD 1992年第6期666-672,共7页
关键词 阵列雷达 分辨率 平滑滤波 array radar,resolving power,smothing filters,rotational invariance,eigenanal-ysis
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同被引文献10

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  • 2S.A.Schelkunoff,H.T.Friis.Antenna Theory and Practice[]..1966 被引量:1
  • 3R.S.Adve,T.K.Sarkar.Compensation for the ef- fects of mutual coupling on direct data domain al- gorithms[].IEEE Transactions on Antennas and Propagation.2000 被引量:1
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  • 6T.T.Zhang,H.T.Hui.Direction of arrival estima- tion by using ESPRIT with mutual coupling effect compensated by a new method[].ProcInstElectEng ScienceMeasurement & Technology.2004 被引量:1
  • 7Roy R,Kailath T.ESPRIT-estimation of signal parameters via rotational invariance techniques[].IEEE Transactions on Applied Superconductivity.1989 被引量:1
  • 8Tie-Jun Shan,Matl Wax,Thomas Kailath.On spatial smoothing for direction-of-arrival estimation of coherent signals[].IEEE Transactions on Applied Superconductivity.1985 被引量:1
  • 9K Pasala,E Friel.Mutual coupling effects and their reduction in wideband direction of arrival estimation[].IEEE Transactions on Aerospace and Electronic Systems.1994 被引量:1
  • 10Hui H T.A practical approachto compensate for the mutualcoupling effect of an adaptive dipole array[].IEEE Transactions on Antennas and Propagation.2004 被引量:1

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