Wideband DOA Estimation Method Based on Khatri-Rao Subspace with Uniform Focusing
Jin Zhang, Shi You Qi, Ai Yong · Applied Mechanics and Materials · 2014
A new wideband DOA estimation method based on Khatri-Rao subspace using uniform focusing is presented in this paper. Due to using the uniform focusing matrix which does not require pre-estimating the DOAs of signals in advance, its resolution is improved obviously and its computation complexity is reduced greatly. Meanwhile, it can also resolve more signals than the number of array sensors. Theoretical analysis and simulation results demonstrate the effectiveness and efficiency of the method.