[1]刘爱芳,朱晓华,陆锦辉,等.基于Radon-Ambiguity变换的多分量LFM信号检测与参数估计[J].南京理工大学学报(自然科学版),2004,(04):409-413.
 LIU Ai fang,ZHU Xiao hua,LU Jin hui,et al.Multicomponent LFM Signal Detection and Parameters Estimation Based on Radon Ambiguity Transform[J].Journal of Nanjing University of Science and Technology,2004,(04):409-413.
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基于Radon-Ambiguity变换的多分量LFM信号检测与参数估计()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2004年04期
页码:
409-413
栏目:
出版日期:
2004-08-30

文章信息/Info

Title:
Multicomponent LFM Signal Detection and Parameters Estimation Based on Radon Ambiguity Transform
作者:
刘爱芳朱晓华陆锦辉刘中
南京理工大学电子工程与光电技术学院, 江苏南京2100
Author(s):
LIU Ai fangZHU Xiao huaLU Jin huiLIU Zhong
School of Electronic Engineering and Optoelectronic Technology, NUST, Nanjing 210094,China
关键词:
Radon-Ambiguity 变换 线性调频信号 参数估
Keywords:
Radon-Ambiguity transform linear frequency-modulated signal parameters est ima-t ion
分类号:
TN957.51
摘要:
介绍了Radon -Ambiguity变换 (RAT)的定义和基本性质 ,结合解线调技术提出了一种基于RAT的线性调频 (LFM )信号检测与参数估计方法 ,该方法能用较少的计算量完成对LFM信号的检测与参数估计。为解决多分量条件下LFM信号分量之间交叉项的影响 ,基于逐次消去思想 ,提出了一种基于RAT的多分量LFM信号检测与参数估计算法 ,它可以有效地解决强度相差较大的多分量LFM信号的检测和参数估计问题。仿真实验结果验证了该算法的有效性。
Abstract:
Basic principle of LFM( linear frequency-modulated) signal detection and parameters est imation using Radon-Ambiguity t ransform ( RAT) w as analyzed, and the result s indicate that the init ial f requency of LFM signal can not be est imated by using the RAT direct ly. To re solve this problem, an improved scheme combining RAT w ith dechirp technique w as proposed, w hich could est imate all parameters of LFM sig nal at the cost of lit t le addit ional computation load. By applying the CLEAN technique to the improved scheme, a novel RAT-based algo rithm was presented, w hich could detect weak LFM components embedded in st rong LFM components. The computer simulat ion results prove it s effect iveness.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 国家“ 863”计划( 2002AA731142)
作者简介: 刘爱芳( 1974- ) , 男, 山西武乡人, 博士, 主要研究方向: 现代信号处理, 雷达信号处理, 雷达成像和目标识别等, E-mail: lafsx1997@ 163. com。
更新日期/Last Update: 2013-03-11