关键词: 双频测距, 多频连续波测距雷达, 二次相差

Abstract:

This paper describes the principle of ranging based on quadric phase difference in details,then simulates the performance of ranging based on quadratic phase difference and provides an analysis of the simulation,and finally gives a study on the problem of the multiple frequency CW ranging radar based on quadratic phase difference in dealing with multiple targets.Simulation results show that the quadratic phase difference-based multiple frequency CW ranging radar can only resolve the ranges of targets at different speeds,but not the ranges of different targets at the same speed.

Key words: dual-frequency ranging;quadratic phase difference;multiple frequency CW radar