DPCA motion compensation technique based on multiple phase centers

DPCA technique is a principle technique for ground moving target detection, but DPCA condition of platform velocity, PRF and phase centre distance should be satisfied. The errant of platform velocity can destroy the condition usually. DBF technique is a flexible beam forming technique, by which multiple phase centers for receive beam can be formed. This advantage is used in this paper to form multiple phase centre distance for satisfying DPCA condition by real platform velocity. Numerical experiments verify the effectiveness of the method.