电源纹波对相参雷达改善因子的影响

Effects of Transmitter's Power Ripples on Improvement Factor of Coherent Radar

分析了电源纹波对行波管 (TWT)级联发射机放大链引起非线性失真的原因 ,通过对非线性失真公式进行变换 ,导出了发射电源纹波与相参雷达 MTI改善因子的关系式 ,给出了衡量电源纹波的参数 ,为雷达系统设计选择 TWT和确定电源纹波参数指标提供了定量理论依据。

This paper describes the reason of the TWT amplifiers transmitter's non linear distortion in phase and amplitude caused by the power ripples,and transforms the distortion equation into a simple one.At last the paper derives the relations between the power ripple amplitude and IF of MTI.The results provide a useful reference in theory to select a suitable TWT and to determine the parameter of the power ripple.