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Multi-period Ambiguity Function Analysis of Symmetrical Triangle Linear Frequency Modulation Continuous Wave Signals


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Multi-period Ambiguity Function Analysis of Symmetrical Triangle Linear Frequency Modulation Continuous Wave Signals
WU LiPENG Shu-shengXIAO Ze-longSHI Xiang-quan
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
linear frequency modulation continuous wave signals symmetrical triangle multi-period ambiguity functions Doppler resolutions delay resolutions
For the problem to take into account of Doppler effect on the complex envelope in large time-bandwidth product symmetrical triangle linear frequency modulation continuous wave(LFMCW) signal ambiguity function,this paper adopts a complex envelope solution to deduce single-period and multi-period ambiguity functions of the large time-bandwidth product symmetrical triangle LFMCW signals.Their symmetry,ambiguity map and ambiguity function cut along their principal axis are studied.By analyzing ambiguity function expressions,this paper resolves theoretic Doppler signal resolutions and delay resolutions of single-period and multi-period symmetrical triangle LFMCW signals.The results show that the single-period and multi-period LFMCW signals have a same delay resolution,and the multi-period LFMCW signal Doppler resolution is 1/N of single-period signals.


[ 1] Stove A G. Linear FMCW radar techniques[ J]. Radarand S igna lProcessing, IEE Proceed ings F. 1992, 139( 5):343- 350.

[ 2] W idzyk-C apehart E, Brooker G, Sched ing S, et a.lApplication o fm illim eterw ave radar senso r to env ironmentm apping in surfacem in ing [ A]. 9th Internationa lConference on Contro ,l Autom ation Robotics and V-ision, ICARCV 2006 [ C ]. S ingapore: IEEE Contro lSystem s Soc iety, 2006.
[ 3] 李师波, 赵建中, 吴文. 3 mm 线性调频源线性度实时数字校正技术研究[ J] . 南京理工大学学报(自然科学版), 2005, 29( 2): 166- 168.
[ 4] 杨建宇, 凌太兵, 贺峻. LFMCW 雷达运动目标检测与距离速度去耦合[ J]. 电子与信息学报, 2004, 26( 2):169- 173.
[ 5] 林茂庸, 柯有安. 雷达信号理论[M ] . 北京: 国防工业出版社, 1984.
[ 6] 张容权, 杨建宇, 熊金涛, 等. 对称三角线性调频连续波信号模糊函数分析[ J]. 电子学报, 2004, 32( 3): 353- 356.
[ 7 ] Levanon N, Freedm an A. Per iodic amb iguity functionof CW signals w ith perfect pe riod ic autocorrelation[ J].IEEE Transactions on Aerospace and E lectron ic Systems,1992, 28( 2): 387- 395.
[ 8] Lev anon N, M ozeson E. Radar signals[M ]. H oboken,New Jersey: JohnW iley and Sons, Inc, 2004.
[ 9] Freedman A, Levanon N. Properties of the per iodic ambiguity func tion [ J]. IEEE Transactions on Aerospaceand E lectron ic Sy stem s, 1994, 30( 3): 938- 941.
[ 10] 郭磊, 杨中海. LFM CW 雷达信号多周期模糊函数分析[ J]. 信号处理, 2004, 33( 5) : 543- 546.


Last Update: 2012-11-19