发射脉冲载波泄漏抑制研究与实现

Research and Realization of Emission Impulse Carrier Leakage Repression

对发射端采用双平衡正交调制器产生线性调频造成载波泄漏的原因进行了详细分析，提出了采用直接数字合成（DDS）技术产生发射端线性调频信号的实现方法，从而很好地解决了载波泄漏的问题，并给出了试验结果。

This paper analyzes in detail the cause leading to carrier leakage in the course of creating linear frequency modulation signal by dual balanced quadraphase modulator in emission part. It describes a method based on DDS technology in creating linear frequency modulation signal in emission part. Then, cartier leakage can well be solved and experimental results are given.