###
DOI:
工程科学与技术:2009,41(1):174-179
本文二维码信息
码上扫一扫!
基于S-method的多分量雷达辐射源信号检测
(西南交通大学 电气工程学院,四川 成都 610031)
Multi component Radar Emitter Signal Detection Based on S-method
摘要
图/表
参考文献
相似文献
附件
本文已被:浏览 2789次   下载 245
投稿时间:2007-09-20    
中文摘要: 针对传统时频方法在处理多分量雷达辐射源信号时存在交叉项, 不能检测各分量信号时域参数, 难以适应低信噪比环境的问题, 提出一种基于S method(SM)的多分量雷达辐射源信号检测新方法。 该方法首先计算信号的SM时频分布, 然后在时频面的基础上检测各信号分量的瞬时频率和脉冲起止时间。 实验结果表明,该方法能处理线性及非线性调频信号、 时频分辨率高且不受交叉项干扰, 时域检测精度大于98.60%, 频域检测精度大于99.48%, 信噪比降低时仍然保持强检测能力。
Abstract:When the conventional time frequency methods are applied to process multi component radar emitter signals, they have many cross terms, and cannot detect time domain parameters of each signal component and difficultly process signals in low signal to noise ratio. Aiming at these problems, a multi component radar emitter signal detection method based on S method (SM) was proposed. First, the SM time frequency distribution of signals was computed. Then, the instantaneous frequency and time of arrival and termination of each signal component was detected based on SM. Experimental results showed that the introduced approach can process linear and nonlinear frequency modulation signals, and has high time frequency resolution without disturbance of cross terms. The detection precisions in time domain and in frequency domain are more than 98.60% and 99.48%, respectively, and the detection ability is also strong in the low signal to noise ratio.
文章编号:20090115     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(60572143;60702026)
作者简介:
引用文本:
荣海娜,张葛祥,金炜东.基于S-method的多分量雷达辐射源信号检测[J].工程科学与技术,2009,41(1):174-179.
.Multi component Radar Emitter Signal Detection Based on S-method[J].Advanced Engineering Sciences,2009,41(1):174-179.