[1]周新刚,赵惠昌,高振儒,等.“LFMCW雷达信号多周期模糊函数分析”再研究[J].南京理工大学学报(自然科学版),2010,(05):624-627.
 ZHOU Xin-gang,ZHAO Hui-chang,GAO Zhen-ru.Comment on "Multi-period Ambiguity Function of LFMCW Radar Signal"[J].Journal of Nanjing University of Science and Technology,2010,(05):624-627.
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“LFMCW雷达信号多周期模糊函数分析”再研究
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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:
2010年05期
页码:
624-627
栏目:
出版日期:
2010-10-31

文章信息/Info

Title:
Comment on "Multi-period Ambiguity Function of LFMCW Radar Signal"
作者:
周新刚;赵惠昌;高振儒;
南京理工大学电子工程与光电技术学院
Author(s):
ZHOU Xin-gang1ZHAO Hui-chang1GAO Zhen-ru12
1.School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China;2.Institute of Engineering Corps,PLA University of Science and Technology,Nanjing 210018,China
关键词:
线性调频连续波 周期模糊函数 自相关函数 距离 速度
Keywords:
linear frequency modulated continuous wave periodic ambiguity function autocorrelation function ranges velocity
分类号:
TN957.51
摘要:
针对郭磊等人的论文"LFMCW雷达信号多周期模糊函数分析"中关于线性调频连续波(LFMCW)雷达信号单周期模糊函数的推导及其单周期、多周期距离自相关函数和模糊图仿真有误的情况,该文从周期调制连续波信号的单周期模糊函数定义出发,推导出LFMCW信号的单周期模糊函数,利用单周期模糊函数与周期模糊函数的关系获得LFMCW信号的周期模糊函数。仿真结果表明,LFMCW信号的单周期或周期模糊函数具有奇数个完整的"斜刀刃"和2个"半斜刀刃";周期速度自相关函数是单周期速度自相关函数在多普勒域的N(N为周期数)倍压缩;周期距离自相关函数是其单周期自相关函数的N次复制。
Abstract:
There is a wrong statement in Guo Lei’s paper "Multi-period Ambiguity Function of LFMCW Radar Signal" which is about the single period ambiguity function of linear frequency modulated continuous wave(LFMCW) radar signal,its single period and multi-period range autocorrelation and ambiguity diagram.According to the single period ambiguity function(SPAF) of the cycle modulated continuous wave(CW) signal,the SPAF of the chirp-CW is deduced,and the period ambiguity function(PAF) of the chirp-CW is obtained by the relationship between SPAF and PAF.The SPAF or the multi-PAF of LFMCW has odd number of intact "knife-edge" and two "half-knife-edge" through simulation.The periodic velocity autocorrelation function is the N(N is the periodic number) times compression of the single velocity autocorrelation function of the LFMCW signal,and the compression times is the periodic number.The periodic range autocorrelation function can be obtained by copying N times of the single periodic range autocorrelation function along the time delay axis.

参考文献/References:

[ 1] StoveA G. L inear FMCW radar techn iques[ J]. IEEE Proceed ing s-F, 1992, 139( 5) : 343- 350.
[ 2] Kehrbeck J, H e idr ich E, W iesbeckW. A nove l and inexpensive sho rt range FM-CW rada r design [ A ]. Pro ceedings of 1992 IEEE Rada r Interna tiona l Conference[ C ]. Piscataw ay, USA: IEEE Press, 1992: 288 - 291.
[ 3] Phillip E P. Detecting and class ify ing low probability o f intercept rada r [M ]. Boston: A rtech H ouse Inc, 2004: 73- 76; 60- 62.
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[ 6] 郭磊, 杨中海. LFMCW 雷达信号多周期模糊函数分析[ J]. 电子科技大学学报( 自然科学版), 2004, 35( 5): 543- 546.
[ 7] Levanon N, Freedom A. Per iodic am bigu ity function of CW s igna ls w ith pe rfect per iodic autocorrelation [ J]. IEEE T ransactions on A erospace and E lectronic System s, 1992, 28( 2): 387- 395.
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备注/Memo

备注/Memo:
基金项目: 总装备部预研基( 9140A05060209BG0210); 江苏省普通高校研究生科研创新计划项目( CX08B _077Z)
作者简介: 周新刚( 1981- ) , 男, 博士生, 主要研究方向: 无线电引信系统建模与设计及其干扰与抗干扰技术, 非平稳信号处理等, E-mail:pcm603@yahoo.com; 通讯作者: 赵惠昌( 1958- ) , 男, 教授, 博士生导师, 主要研究方向: 电子对抗、现代无线电引信技术、电磁兼容与抗干扰、信号处理与数字仿真等, E-mail: zhhch@mail.njust.edu.cn
更新日期/Last Update: 2012-11-02