A Bistatic MIMO Radar Angle Estimation Method for Coherent Sources in Impulse Noise Background

In order to solve the angle estimation problem of coherent sources in the impulse noise background, an algorithm based on infinite norm normalization preprocessing and sparse representation (INN-SR) is proposed. First, an infinite norm normalization preprocessing method is used to reduce the impact of the impact noise. Then the sparse decomposition method is used to construct the restoration dictionary to estimate the DOA and DOD. Finally, accurate matching of target DOA and DOD is achieved based on maximum likelihood method. The algorithm does not need to know the number of sources and can also work well for coherent sources.