电波科学学报2012，Vol.27Issue(3)：543-550,8.
基于特征参数的随机噪声雷达相关输出研究
Correlation output of random noise radar based on characteristic parameters
武昕 1李澍 1刘畅 2王岩飞2
作者信息
- 1. 中国科学院电子学研究所,北京100190 中国科学院研究生院,北京100039
- 2. 中国科学院电子学研究所,北京100190
- 折叠
摘要
Abstract
As the basis of random wave design,numeric characteristic parameter of random signal is an important factor for signal analysis.Correlation coefficient and variance are two crucial characteristic parameters of random signal with decisive influence.A specific mathematic model expressed by correlation coefficient and variance is established on the basis of general correlation output representation of random noise radar.According to this model,the influence,which is caused by correlation coefficient and variance of noise source signal,to the correlation output and bandwidth is further analyzed.Correlation coefficient decides the form of correlation output;meanwhile,variance highly influences the mainlobe power and the sidelobe level of correlation output.With increasing value of variance,the sidelobes are depressed effectively,and the power of the mainlobe is concentrated well,so that the resolution of output is improved.The conclusions are demonstrated by simulation results.Furthermore,with different correlation coefficient functions,the relation between variance and bandwidth is obtained.This relation shows that the bandwidth of modulated signal is broadened when the variance of noise source signal increasing.关键词
随机噪声雷达/相关系数/方差/相关输出Key words
random noise radar/correlation coefficient/variance/correlation output分类
信息技术与安全科学引用本文复制引用
武昕,李澍,刘畅,王岩飞..基于特征参数的随机噪声雷达相关输出研究[J].电波科学学报,2012,27(3):543-550,8.
