Title :
A New Anti-interference Preprocess Methodfor DOA Estimation Based on Uniform CircularArray
Author :
Guangxue, Wang ; Yichun, Pan ; Shirui, Peng ; Wenfeng, Dong
Author_Institution :
Dept. of Electron. Warfare, Radar Acad., Wuhan
Abstract :
In process of super-resolution DOA estimation, many anti-interference preprocess methods are applied ahead of estimation algorithm, in order to suppress influence of interference, especially active jamming. In this paper, a new anti-interference method based on uniform circular array is proposed. It is based on the theory of function fitting, and DFT is used in the process. With the help of it, the minimum clutter-to-signal ratio and the maxim signal-to-noise ratio (SNR) can be acquired at the same time. At last, a MUSIC algorithm adopting the proposed preprocess method is implemented in simulations. The merits of it are showed in the experiments
Keywords :
array signal processing; direction-of-arrival estimation; discrete Fourier transforms; interference suppression; signal classification; signal resolution; DFT; MUSIC algorithm; antiinterference preprocess method; direction-of-arrival estimation; discrete Fourier transform; function fitting theory; super-resolution DOA estimation; uniform circular array; Direction of arrival estimation; Discrete Fourier transforms; Electronic warfare; Interference; Jamming; Matrix decomposition; Multiple signal classification; Phased arrays; Radar signal processing; Signal resolution; Active Jamming; Beamspace Preprocess; MUSIC Algorithm; Uniform Circular Array;
Conference_Titel :
Radar, 2006. CIE '06. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9582-4
Electronic_ISBN :
0-7803-9583-2
DOI :
10.1109/ICR.2006.343149
