Joint Estimation of Angle and Doppler Frequency for Bistatic MIMO Radar in Spatial Colored Noise

A method of joint estimation of angle and Doppler frequency for bistatic MIMO radar in spatial colored noise is presented. Utilizing the cross-correlation matrix which is formed by the adjacent outputs of match filters in the time domain, a new matrix is constructed to eliminate the influence of spatial colored noise, and the signal subspace is obtained from Singular Value Decomposition (SVD) of it. Then angles and Doppler frequencies can be estimated based on ESPRIT using the rotational factor produced by adjacent outputs of match filters. In this method, angles and Doppler frequencies can be obtained simultaneously and automatically paired without array aperture loss. Numerical results verify the effectiveness of the proposed method.