非合作双基地雷达系统中的互相关检测与时差估计技术  

Cross-correlation Detection and Time Difference Estimation in Non-cooperative Bistatic Radar Systems

作　　者：宋杰[1] 葛先军[1] 毕崇伟[1] 何友[1] 唐小明[1] 

机构地区：[1]海军航空工程学院,山东烟台264001

出　　处：《火力与指挥控制》2010年第2期14-17,21,共5页Fire Control & Command Control

基　　金：国家自然科学基金资助项目(60672139)

摘　　要：介绍了非合作双基地雷达的基本几何关系与信号能量关系,讨论了利用互相关检测技术提取噪声背景中直达波与目标散射回波的时差信息的具体方法,仿真实验模拟了噪声背景中直达波与目标散射回波的互相关检测与时差估计的过程,蒙特.卡罗仿真分析了信噪比、信号脉宽和相关脉冲数对互相关时差估计性能的影响。In this paper, the basic geometrical relationship and signal energy relationship of noncooperative bistatic radar are introduced, and the method using the cross-correlation to obtain the time difference of direct signal and target returns in an environment of noise is discussed. Some experiments have been done to simulate the process of cross-correlation detection and time difference estimation, and on the basis of them, some parameters affecting the performance of the algorithm, such as the signal-noise ratio, pulse width and pulse number of cross-correlation ,are analyzed by Monte Carlo simulation.

关 键 词：双基地雷达 非合作 互相关 时差 

分 类 号：TN953[电子电信—信号与信息处理]