[关键词]
[摘要]
在线性调频＋PD雷达模式下，利用噪声的随机特性和M／N检测原理，提出了一种能改善雷达系统检测性能的检测方法，并比较了两种不同采样频率下幅值检测和M／N检测对检测概率的影响。仿真实验结果表明：改进的M／N检测方法明显优于幅值检测方法。根据高重频脉冲多普勒雷达的特点，分析了在此条件下的目标回波特性，讨论了如何实现高重频脉冲多普勒雷达对频率展宽信号的精确测量。
[Key word]
[Abstract]
In this paper,a detection method based on LFM+PD radar mode,which uses random characteristic of noise and the principle of M/N detection is presented.For two different sampling frequencies,the different effect on detection probability of M/N detection method and amplitude method is analyzed.Simulation results indicate that M/N method is better.For HPRF PD radar, the characteristic of echo,is analyzed and how to realize precise measurement of extended spectrum of the target is discussed.
[中图分类号]
TN958
[基金项目]
“十五”武器装备预研项目资助课题.
