本文推导了机载脉冲多卜勒雷达的主杂波和旁办杂波的计算公式,根据计算公式得出了探测距离,载机高度和旁办增益之间的关系式,并指出在给定载机飞行最小高度和最大探测距离的情况下,为消除旁办模糊区所要求的雷达天线的低旁办指标。 In this paper, the formulas of main clutter and side clutter for airborne pulsed Doppler radar are deduced. According to the formula, the relation between the detection distance, the height of vehicle and the by-pass gain is derived. In the case of the minimum flight altitude and the maximum detection range of the aircraft, a low margin index for the radar antenna required to bypass the ambiguous zone is eliminated.