An Adaptive Clutter Suppression Technique based on Environmental Perception

In engineering practice, fixed MTI clutter suppression strategy is often applied, which cannot match the change of environment quickly. It leads to the increase of radar false alarm rate, and seriously affects the normal detection radar targets and directly affects the tactical effect of air defense combat command system. In this paper, signal processor processes the data before and after MTI cancellation separately in purpose, then get the cancellation ratio in the range of full distance in minimum scale and set the cancellation parameters in specific distance section after much iteration. So as to realize the dynamic selection of MTI cancellation algorithm, to improve the adaptive and fast matching of clutter suppression strategy to changing environment, and to achieve the dynamic balance between target detection probability and false alarm rate. This method can improve the radar's clutter environment sensing ability and adaptive clutter processing ability, and it helps radar have good target detection performance in the clutter or interference environment.