High-resolution radar ranging based on the ultra-wideband chaotic optoelectronic oscillator

被引：4
|
作者：
Xu, Ziwei [1 ]
Tian, Huan [1 ]
Zhang, Lingjie [1 ,2 ]
Zhao, Qingbo [1 ]
Zhang, Zhiyao [1 ,2 ]
Zhang, Shangjian [1 ,2 ]
Li, Heping [1 ,2 ]
Liu, Yong [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Device, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, Adv Res Ctr Microwave Photon ARC MWP, Sch Optoelect Sci & Engn, Chengdu 610054, Peoples R China
来源：
OPTICS EXPRESS | 2023年 / 31卷 / 14期
基金：
中国国家自然科学基金;
关键词：
LASER; SIGNALS; SYSTEM;
D O I：
10.1364/OE.492329
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A high-resolution radar ranging scheme is proposed and demonstrated based on the ultra-wideband chaotic optoelectronic oscillator (OEO). Through biasing the electro-optic intensity modulator near its minimum transmission point, high-dimensional chaotic signals with flat spectra and low time-delayed signatures can be generated in the OEO, which are favorable for increasing the ranging resolution and the confidentiality. In the experiment, the optimized broadband OEO generates a high-dimensional chaotic signal with a flat spectrum in the frequency range of 2 GHz to 16 GHz and a high permutation entropy of 0.9754. This chaotic signal is used to achieve multiple target ranging, where a ranging resolution of 1.4 cm is realized.
引用
收藏
页码：22594 / 22602
页数：9
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