Title :
Performance improvement of estimation direction-of-arrival via array geometry arrangement
Author :
Chen Hui ; Wang Yongliang ; Wan Shanhu
Author_Institution :
Key Res. Lab., Wuhan Radar Acad., China
Abstract :
A simple method of direction-of-arrival (DOA) estimation for an unequal linear array, which uses the spatial smoothing MUSIC technique, is presented. In the case of the same sensor number, this method which adopts the appropriate array geometry arrangement can improve the resolvability of DOA estimation more obviously than the uniform linear array. It also overcomes the weakness of the ambiguity of the DOA estimation and improves the poor property of decorrelation in the conventional unequal linear array.
Keywords :
array signal processing; decorrelation; direction-of-arrival estimation; linear antenna arrays; signal classification; DOA estimation; array geometry arrangement; decorrelation; direction-of-arrival estimation; spatial smoothing MUSIC technique; unequal linear array; uniform linear array; Apertures; Direction of arrival estimation; Equations; Geometry; Laboratories; Multiple signal classification; Sensor arrays; Smoothing methods; Spatial resolution; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788251