一、引言脉冲雷达是利用发射一个脉冲并测定从目标返回的时间来进行测距的。 t=2R/c即R=ct/2 (1) 式中R为雷达目标距离,t为发射脉冲与目标回波信号间的时间。图1所示的脉冲雷达其最大不模糊距离R_(ua)是T(脉冲重复周期)的函数,即: I. INTRODUCTION Pulsed radar utilizes the time it takes to fire a pulse and measure the return from the target for distance measurement. t = 2R / c R = ct / 2 (1) where R is the radar target distance and t is the time between the transmitted pulse and the target echo signal. The maximum unambiguous distance R_ (ua) of the pulse radar shown in Fig. 1 is a function of T (pulse repetition period), that is,