摘要
Abstract
The MUSIC algorithm is a kind of spatial spectrum estimation algorithm,which needs to spend a long observa-tion period to estimate the CSDM when the spatial spectra of broadband signals are estimated,and is adverse to the localization of fast-moving targets. A MUSIC algorithm based on the steered covariance matrix(STCM)is proposed in this paper,in which characteristic decomposition on each band′s CSDM is performed firstly,and then the STCM of the noise space is derived by means of the noise subspace of every band to get the spatial spectrum estimation result of the whole broadband signals by using the noise space′s STCM. Simulation results show that this algorithm needs short observation time,suits for low SNR and has smaller observed variance while provides high resolution.关键词
MUSIC算法/ISM算法/STCM/DOA估计Key words
MUSIC algorithm/ISM algorithm/STCM/DOA estimation分类
信息技术与安全科学
