Title :
Wavelet packets-based direction-of-arrival estimation
Author :
Xue, Yanbo ; Wang, Jinkuan ; Liu, Zhigang
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
Abstract :
Wavelet packets-based MUSIC (WP-MUSIC) is proposed to improve the performance of classical MUSIC in scenarios of closely spaced DOA and low signal-to-noise ratio (SNR). With WP-MUSIC the fullband signal is decomposed into several subbands by wavelet packets, and then MUSIC is applied to each subband. The computational savings of WP-MUSIC compared to MUSIC are proven. Some simulation results, proving the validity and improved performance of the proposed approach, are presented.
Keywords :
direction-of-arrival estimation; signal classification; wavelet transforms; DOA estimation; SNR; signal decomposition; signal-to-noise ratio; wavelet packets-based MUSIC; wavelet packets-based direction-of-arrival estimation; Computational modeling; Direction of arrival estimation; Discrete wavelet transforms; Frequency estimation; Information science; Multiple signal classification; Radar applications; Sensor arrays; Signal resolution; Wavelet packets;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326305
