ESPRIT Method Simulation for Targets DOA Estimation Using MIMO Array
Yunshan Hou · Jisuanji fangzhen · 2010
Based on subspace eigen decomposition,MIMO array estimation of signal parameters via rotational invariance techniques is proposed for multiple targets localization using MIMO array.Because MIMO array sensors transmit mutually orthogonal signals,a rank deficiency is nonexistent in the array output covariance matrix and a divergence of a signal eigenvector into the noise subspace will not happen,which contributes to direct application of subspace eigen decomposition to multiple targets direction of arrival(DOA) estimation of the MIMO array.The simulation results show that increasing the number of transmit sensors and extending their inter-element space will result in superior multiple targets DOA estimation performance of MIMO-ESPRIT.