›› 2012, Vol. 25 ›› Issue (6): 60-.

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TOFS-based Beam Space Wideband DOA Estimator

 XIE Jian, CHEN Ying-Ying   

  1. (School of Electronic Engineering,Xidian University,Xi'an 710071,China)
  • Online:2012-06-15 Published:2012-08-23


Test of orthogonality of frequency subspace (TOFS) is an important method for wideband signal direction-of-arrival (DOA) estimation.Since TOFS avoids focusing operation and preliminary DOA estimation,its performance is better than other methods in middle signal-to-noise ratio (SNR) ranges.However,the SNR resolution threshold for TOFS is higher than others.An improvement based on beam space method is proposed to reduce the SNR threshold and computational complexity.Simulation results show that the proposed method has better performance than TOFS algorithm.

Key words: TOFS;beam space;DOA estimation

CLC Number: 

  • TN911.23