Title :
Angle-of-arrival estimation based on weighted cyclic spectrum
Author :
Zhitao, HUANG ; Yiyu, ZHOU ; Wenli, JIANG
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
For cyclostationary signals, a generalized sensor array data model is presented and a new angle-of-arrival (AOA) estimation method based on weighted cyclic spectrum - GSC-SSF is developed in this paper. The proposed algorithm is more convenient and effective in forming the data matrix or the covariance. matrix for the MUSIC or ESPRIT algorithm to estimate AOA and suppress noise. Simulation results show better performance for the new method
Keywords :
antenna arrays; array signal processing; covariance matrices; direction-of-arrival estimation; interference suppression; radar antennas; radar signal processing; signal classification; spectral analysis; AOA estimation; ESPRIT; GSC-SSF; MUSIC; angle-of-arrival estimation; covariance matrix; cyclostationary signals; data matrix; generalized sensor array data model; noise suppression; performance; radar antennas; weighted cyclic spectrum; Autocorrelation; Background noise; Covariance matrix; Data models; Delay; Frequency; Interference; Narrowband; Radar tracking; Sensor arrays;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984904
