Title :
Estimating two-dimensional angles of arrival in coherent source environment
Author :
Yeh, Chien-chung ; Lee, Ju-Hong ; Chen, Yih-Min
Author_Institution :
Dept. of Electr. Eng., Nat Taiwan Univ., Taipei, Taiwan
Abstract :
The concept of spatial smoothing is first extended to a rectangular planar array and a two-dimensional (2-D) search function is formed to estimate the source of directions. To avoid performing a 2-D search, an approach based on two one-dimensional (1-D) searches is also discussed. This approach uses rows and columns of the rectangular array to perform 1-D searches. To match the data obtained, a 2-D verification is then performed. Computer simulation results for both approaches, based on the MUSIC method, are presented.<>
Keywords :
estimation theory; signal processing; spectral analysis; 2-D verification; MUSIC method; coherent source environment; computer simulation; estimation; rectangular array; spatial smoothing; two-dimensional angles of arrival; two-dimensional search function; Computer simulation; Covariance matrix; Frequency; Multiple signal classification; Narrowband; Phase noise; Phased arrays; Planar arrays; Smoothing methods; Two dimensional displays;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on