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A new subspace method for the estimation of parameters of near field sources

ZHOU Yi;FENG Da-zheng;LIU Jian-qiang

  

  1. Key Lab.of Radar Signal Processing, Xidian Univ., Xi′an 710071, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-02-20 Published:2006-02-20

Abstract: A new subspace algorithm for jointly estimating the direction-of-arrival (DOA) and range of near field sources is
proposed. Based on the higher order statistics of the data received by the array, two matrix pencils are elaborately
constructed. The phases of the generalized eigenvalues of these two matrix pencils give the estimation of DOA and range,
while their amplitudes can automatically pair among parameters. Without spectral peak searching and pairing procedure, the
proposed algorithm gives closed-form solutions to the parameters. In addition, it can be applied to arbitrary additive
Gaussian noise environments since the fourth-order cumulants are exploited. Its effectiveness is verified by computer
simulation results.

Key words: Array signal processing, DOA estimation, range estimation, forth-order cumulant, generalized eigenvalue

CLC Number: 

  • TN957.52