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Wide-band chaotic noise signal for velocity estimation and imaging of high-speed moving targets
Yang, Qilun; Zhang, Yunhua; Gu, Xiang,
Department微波遥感部
Source PublicationProgress In Electromagnetics Research B
2015
Volume63Issue:1Pages:1-15
ISSN1937-6472
Language英语
AbstractThis 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.
Indexed ByEI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4649
Collection微波遥感部
Corresponding AuthorYang, Qilun
Recommended Citation
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.
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