摘要
文中讨论了低通滤波器法实现正交相干检波的基本原理,深入分析了其信号的流程,对该方法中镜频的定 义进行了明确的阐述,着重讨论了镜像抑制并进行了相应仿真,分析和仿真结果对于低通滤波器法实现正交相干检波的 镜频抑制有一定指导意义。
The basic principle of quadrature coherent detector using LPF method is discussed. The flow of signal is analyzed in detail. The definition of mirror frequency is presented explicitly in this method. Mirror frequency rejection is discussed emphatically,and simulations are made. The analysis conclusion and the simulation results are instructive for eliminating mirror frequency signals in quadrature coherent detector with LPF method.
出处
《现代雷达》
CSCD
北大核心
2005年第1期22-23,61,共3页
Modern Radar
关键词
数字正交相检
低通滤波器法
镜频
幅相一致性
digital quadrature coherent detector
LPF method
mirror frequency
consistency to amplitude and phase
