Utilizing the modulation symmetry of tri-LFMCW signals, up-sweep beat signal is secondary mixed with down-sweep one to eliminate MTRC (Migration Through Range Cell) induced by the high-speed.

• 利用三角线性调频信号的调频对称性，采用上、下调频差拍信号二次混频的方法消除目标高速运动导致的跨距离单元走动现象。