接收机有限带宽对多相码数字脉压的影响  

Bandlimited Effects on Digital Polyphase Coded Pulse Compressors in the receiver

作　　者：彭江[1] 吴桂生[1] 袁湘辉[1] 

机构地区：[1]海军工程大学电子工程学院,江苏南京211800

出　　处：《雷达与对抗》2002年第4期30-33,共4页Radar & ECM

摘　　要：限制接收机带宽是雷达系统中提高信噪比(SNR)的常用方法,相应的也会引起输出波形的失真。本文主要分析了多相码数字脉压雷达系统中,接收机有限带宽对脉压输出结果所造成的影响。运用五点滑动窗平均法在计算机上进行了模拟,并给出了仿真结果。Bandwidth limitations are always used in radar systems in order to maximize the signaltonoise ratio(SNR) in the receiver. But they also result in output waveforms distortion. This paper analyses the bandwidth limitations on the performance of digitally implemented polyphase coded pulse compressors in the receiver. We use sliding window 5 sample averager to simulate it with the computer, and some simulation results are shown.

关 键 词：多相码 脉冲压缩 有限带宽 

分 类 号：TN850[电子电信—信息与通信工程]