Abstract:

Based on the standard back projection (BP) imaging algorithm, a modified BP imaging algorithm for multiple-input multiple-output (MIMO) radar with multi-transmitting and receiving static architecture is proposed. Through delay curve correction of range compressed data, the proposed algorithm can directly focus the processed data without range interpolation. Compared with the standard BP algorithm, the computation load of the modified BP algorithm is drastically reduced. In the meantime, the problem leaving range interpolation operation out of account in present fast BP algorithms is avoided in modified BP algorithm. The imaging results of MIMO radar field experiment demonstrate that the proposed method can effectively save the operation time and preserve the imaging quality.