Title :
2D AOA estimation of multiple wide-band FM sources based on spatial time-frequency distributions
Author :
Tian, Da ; Huang, Keji ; Chen, Tianqi
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
A novel 2D angle-of-arrival (AOA) estimation technique for multiple wide-band FM sources is developed. Based on an L-shaped array, the proposed method employs spatial time-frequency distributions (STFD) in conjunction with a coherent signal-subspace (CSS) processing technique to estimate the direction cosines. CSS processing is achieved by using a unitary constraint interpolation technique over multiple time-frequency points. Computer simulations demonstrate the efficacy of the proposed algorithm.
Keywords :
array signal processing; direction-of-arrival estimation; interpolation; signal processing; time-frequency analysis; 2D AOA estimation; 2D angle-of-arrival estimation; L-shaped array; coherent signal-subspace processing; direction cosines; multiple sources; spatial time-frequency distributions; unitary constraint interpolation; wideband FM sources; Cascading style sheets; Computer simulation; Direction of arrival estimation; Frequency estimation; Interpolation; Narrowband; Sensor arrays; Signal processing; Time frequency analysis; Wideband;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1178959
