Wide-band chaotic noise signal for velocity estimation and imaging of high-speed moving targets

	Wide-band chaotic noise signal for velocity estimation and imaging of high-speed moving targets
	Yang, Qilun; Zhang, Yunhua; Gu, Xiang,
刊名	Progress In Electromagnetics Research B
	2015
卷号	63 期号:1 页码:1-15
ISSN号	1937-6472
通讯作者	Yang, Qilun
英文摘要	This paper proposes a burst model of chaotic noise signals with randomly stepped carrier frequencies for velocity estimation and high-resolution range imaging of high-speed moving targets. The random stepping of carrier frequencies is controlled by a combination chaotic map (CCM), which is generated by embedding a Logistic map into a Bernoulli map. The baseband noise signal adopts the CCM based frequency-modulation (CCM-FM) signal, which has good randomness and a thumbtack ambiguity function as well. The velocity estimation includes a coarse search and a precise search, where the coarse search is conducted with a fixed step to makes the velocity deviation less than the velocity resolution, while the precise search adopts the Golden Section Search (GSS) algorithm to get an accurate estimation of velocity. What should be emphasized is that the velocity estimation process can be completed with just a burst of subpulses. Then the spectra are coherently synthesized to obtain ultra-wide bandwidth and high-resolution range imaging. Finally, numerical simulations demonstrate a good performance of the proposed signal model and the processing algorithm.
收录类别	EI
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/4649]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	Yang, Qilun,Zhang, Yunhua,Gu, Xiang,. Wide-band chaotic noise signal for velocity estimation and imaging of high-speed moving targets[J]. Progress In Electromagnetics Research B,2015,63(1):1-15.
APA	Yang, Qilun,Zhang, Yunhua,&Gu, Xiang,.(2015).Wide-band chaotic noise signal for velocity estimation and imaging of high-speed moving targets.Progress In Electromagnetics Research B,63(1),1-15.
MLA	Yang, Qilun,et al."Wide-band chaotic noise signal for velocity estimation and imaging of high-speed moving targets".Progress In Electromagnetics Research B 63.1(2015):1-15.