A method for determining number of coherent signals with arbitrary plane array
Determining the number of sources impinging on an array of sensors is one of the hot and important problems in array processing field. Research on estimation method which is available in colored noise field has important theoretical meaning. The approach of estimating the number of signals based on information theoretic criteria has good performance in the assumption of white noise, while it always leads to false estimation of the coherent sources in colored noise. An approach is presented to determine number of signals, it combined information theoretic criteria and eigenvalue correction, the method uses maximum likelihood(ML) and information theoretic criteria to estimate coherent signals alternately, then eliminate the inequality of the eigenvalues caused by colored noise by correcting the noise eigenvalues, and computer simulation results prove the effective performance of the method.
spatial spectrum estimation determining the number of signals coherent signals colored noise
Jiaqi Zhen Xicai Si
College of Information & communication Engineering,Harbin Engineering University,Harbin 150001,P. R. China
国际会议
2010 IEEE信息与自动化国际会议(ICIA 2010)
哈尔滨
英文
1-5
2010-06-20（万方平台首次上网日期，不代表论文的发表时间）