一、引言普通的脉冲雷达,由于脉冲宽度和重复频率受分辨力和最大作用距离要求的限制,平均发射功率只能依靠增加峰值发射功率来提高。此外,要求利用脉冲与脉冲的测量才能决定目标的多卜勒频率fd。这样,由于采样定理的限制,不能无模糊地测定大于脉冲重复频率一半的多卜勒频率。 I. Introduction Ordinary pulse radar, due to the pulse width and repetition frequency by resolution and maximum distance requirements of the restrictions, the average transmit power can only rely on increased peak transmit power to improve. In addition, the use of pulse and pulse measurements is required to determine the target Doppler frequency fd. Thus, Doppler frequencies greater than half the pulse repetition frequency can not be determined without ambiguity due to the sampling theorem.