JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (2): 149-152.

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An  improved  2-D ESPRIT  algorithm

DIAO Ming, WEI Ting   

  1. Information and Communication Engineering College, Harbin Engineering Universiuy,   Harbin 150001, China
  • Received:2009-05-31 Online:2010-04-16 Published:2009-05-31

Abstract:

When  the 2-D ESPRIT algorithm is used to treat two-dimensional signals, there is a great deal of redundancy in the arrays.   A new 2-D improved ESPRIT algorithm was proposed. This algorithm used the geometries characteristic of a  double linear array to construct a mixed matix, and then  the signal subspace was obtained via the singular value decomposition of the matix in the 2D-ESPRIT method. This method could  estimate the signal with  less work, and get good estimation results. It could  estimate both coherent signals and non-coherent signals by the spatial smoothing method.

Key words:  direction of arrival estimation, 2-D ESPRIT, singular value decomposition, coherent signal

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