Title :
New algorithm requiring no preprocessing for wideband DOA estimation
Author :
Cao, Jinliang ; Liu, ZhiWen ; Xu, Yougen
Author_Institution :
Dept. Electron. Eng., Beijing Inst. of Technol., Beijing
Abstract :
A new focusing method for wideband direction-of-arrival (DOA) estimation is proposed. Based on least-square fitting (LSF), the focusing matrix is obtained by jointly exploiting the auto- and cross-correlation information embedded in the array output. Unlike the modified total least-square (MTLS) method, the proposed method does not require any preprocessing for initial values. Numerical results show that the new method outperforms MTLS method, in terms of bias and root-mean-square error (RMSE).
Keywords :
array signal processing; broadband networks; direction-of-arrival estimation; least mean squares methods; matrix algebra; LSF; MTLS; RMSE; array signal processing; correlation information; direction-of-arrival estimation; least-square fitting; matrix algebra; modified total least-square method; root-mean-square error; wideband DOA estimation; Array signal processing; Bandwidth; Direction of arrival estimation; Discrete Fourier transforms; Frequency; Maximum likelihood estimation; Sensor arrays; Signal processing algorithms; Vectors; Wideband; Array signal processing; direction-of-arrival (DOA) estimation; subspace; wideband source;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697153
