White-Chaos Radar With Enhanced Range Resolution and Anti-Jamming Capability

被引：22

作者：

Wang, Longsheng ^{[1
,2
]}

Guo, Yuanyuan ^{[1
,2
]}

Li, Pu ^{[1
,2
]}

Zhao, Tong ^{[1
,2
]}

Wang, Yuncai ^{[1
,2
]}

Wang, Anbang ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Sys, Minist Educ, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2017年 / 29卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Anti-jamming; chaos; optical heterodyne; radar; semiconductor laser; SEMICONDUCTOR-LASER; OPTICAL-INJECTION; FEEDBACK; GENERATION; BANDWIDTH; DIODE; DELAY;

D O I：

10.1109/LPT.2017.2747141

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Laser chaos is promising for constructing high range-resolution and anti-jamming radars, whereas the range resolution and anti-jamming capability are unfortunately limited by laser relaxation oscillation and external-cavity resonance, respectively. Here, we theoretically propose using a broadband white chaos generated by optical heterodyne of two chaotic external-cavity semiconductor lasers as source signal to construct a radar system with enhanced range resolution and anti-jamming capability. The white chaos not only has a white-noise-like wide spectrum without relaxation oscillation, but also has no signature of external-cavity resonance. Benefitting from these merits, the proposed white-chaos radar shows a marvelous unambiguous detection performance with subcentimeter range resolution. Moreover, the elimination of external-cavity resonance enables the randomness improvement of source signal, and resultantly, the anti-jamming capability is enhanced as well.

引用

页码：1723 / 1726

页数：4

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