Title :
Effect of spatial smoothing on the performance of DOA estimation algorithm based on the largest eigenvalue
Author :
Haitao, Wu ; Zhenghe, Feng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Focuses on the smart antennas in DS-CDMA system, and offers a novel DOA estimation algorithm based on the largest eigenvalue of the covariance matrix. Compared with MUSIC estimation algorithm, the new method has quite good stability and robustness, and has better performance under multi-path propagation circumstances. This paper presents further analysis of performance of the latest algorithm and gives a study on the effect of space smoothing.
Keywords :
adaptive antenna arrays; code division multiple access; covariance matrices; direction-of-arrival estimation; eigenvalues and eigenfunctions; multipath channels; spread spectrum communication; DOA estimation algorithm; DS-CDMA system; covariance matrix; eigenvalue; multi-path propagation; robustness; smart antennas; space smoothing; spatial smoothing; stability; Algorithm design and analysis; Antennas and propagation; Covariance matrix; Direction of arrival estimation; Eigenvalues and eigenfunctions; Multiaccess communication; Multiple signal classification; Performance analysis; Robust stability; Smoothing methods;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187806
