摘要
在雷达信号处理中,由于种种原因导致I、Q两路信号并非完全正交,存在不可忽略的幅相误差和直流偏置。本文分析这种误差对雷达一维成像造成的影响以及校正方法,并给出利用FPGA实现校正电路的流程。
In radar signal receivers,there are conditions when the in-phase and the quadrature branch signal are not orthogonal exactly and there exists non-ignorable amplitude-phase error and DC offset.In this paper,the influence of such imbalance en the radar range profile,as well as the compensation methods,is studied,and the design flow of realizing the compensation circuit using FPGA is introduced.
出处
《微计算机信息》
2011年第10期165-167,共3页
Control & Automation
