Direction of arrival research on extracting signal subspace of ESPRIT algorithm

ESPRIT algorithm is very synapses in the effectiveness and stability, so it has been a wide range of research as a major superresolution algorithm.At the same time inevitable to carry out eigende-composition, and unable to meet the requirements of real-time systems, based on this consideration, a extracting signal subspace of ESPRIT fast algorithm, through the improvement of the rotation matrix, so it need not eigende-composition and iterativ calculation, saving the time of calculation and making it apply to real-time processing, and receiving good perforce.