Space-time Three-dimension Parameter Separable Estimation Method of Coherent Signals
Xinying Jiang · Modern Radar · 2008
Based on spatial smoothing technique and ESPRIT algorithm,a new method is presented for estimation of frequency and 2D direction of arrival of spatial coherent signal sources over a wide frequency band.Using the L-shaped array and signal temporal information,the method decomposes the problem about 3-D parameter estimation into three 1-D problems, and gets 3-D parameters of coherent sources by solving for the joint equations.Getting rid of the costly multidimensional spectrum peak search,the proposed method adapts to the practical application.Computer simulation confirms its effectiveness.