摘要
对雷达中频接收如何解调出具有回波信号中的同相(I)、正交(Q)分量做了分析,到目前为止,获取数字I/Q分量的算法很多,常见的有低通滤波法和Hilbert法(希尔伯特法)等,现详细的阐述了低通滤波法及其改进实现方法,并给出仿真结果。
This paper analyzes how to demodulate the inphase （I） and quadrature （Q） components of input signal in IF receiver of radar. At present, there are a number of approaches of forming digital I/Q components, such as low - pass filtering approach and Hilbert transform approach and so on. In this paper, low - pass filtering approach is expatiated in detail. Finally, the simulation results are provided.
出处
《信息技术》
2007年第5期137-138,142,共3页
Information Technology
关键词
数字正交解调
I/Q分量
低通滤波
digital quadrature demodulation
I/Q components
low - pass filtering
