Multi-channel moving target detection and imaging

The detection, motion parameter estimation and imaging of moving targets cause serious problems for conventional SAR systems with a single antenna. In this paper, a triplex-channel SAR system is proposed. First, with triplex channel receiver and DPCA technique, the clutter can be suppressed and moving target is retained. Then from DPCA output data, the moving target can be detected with its motion parameters estimated. Based on the estimated parameters, the focused moving target imaging can be formed in its true position. Some computer simulation results are given to support the effectiveness of the proposed algorithm.