Title :
Subspace intersection method of bearing estimation based on least square approach in shallow ocean
Author :
Pang, Jincheng ; Lin, Jing ; Zhang, Aimin ; Huang, Xiaodi
Author_Institution :
Nat. Lab., Chinese Acad. of Sci., Beijing
fDate :
March 31 2008-April 4 2008
Abstract :
In this paper, least square approach is applied in subspace intersection (SI) method for the problem of bearing estimation in shallow water. Based on that, a method called constrained least square subspace intersection method (CLS-SI) is proposed. The mathematic expressions of CLS-SI are given. In addition, the relationship between CLS-SI and MUSIC is discussed. Simulations show that the performance of the new method proposed is better than that of the original SI method.
Keywords :
direction-of-arrival estimation; least mean squares methods; sonar arrays; sonar signal processing; bearing estimation; direction-of-arrival estimation methods; least square approach; shallow ocean; subspace intersection method; Acoustic propagation; Covariance matrix; Direction of arrival estimation; Eigenvalues and eigenfunctions; Frequency; Laboratories; Least squares approximation; Least squares methods; Oceans; Underwater communication; DOA estimation; least square method; underwater acoustic arrays;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1483-3
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2008.4518139
