Photonics-assisted joint radar detection and frequency measurement system

被引:2
|
作者
Tang, Zhigang [1 ,2 ]
Yang, Mingcheng [1 ,2 ]
Zhu, Jian [1 ,2 ]
Li, Nianqiang [1 ,2 ]
Zhou, Pei [1 ,2 ]
机构
[1] Soochow Univ, Sch Optoelect Sci & Engn, Suzhou 215006, Peoples R China
[2] Soochow Univ, Key Lab Adv Opt Mfg Technol Jiangsu Prov, Key Lab Modern Opt Technol, Educ Minist China, Suzhou 215006, Peoples R China
基金
中国国家自然科学基金;
关键词
Radar; Microwave frequency measurement; Semiconductor lasers; Microwave photonics; MICROWAVE FREQUENCY; HIGH-RESOLUTION;
D O I
10.1016/j.optcom.2023.130008
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A photonics-assisted joint radar detection and microwave frequency measurement system is proposed. A broadband dual-chirp linear frequency-modulated (LFM) signal is generated based on an optically injected semiconductor laser, which is later shared by two functional modules. Thanks to the photonics-assisted broadband signal generation method, both radar detection with high resolution and microwave frequency measurement with high accuracy can be realized without using high-speed electronic devices. In the experiment, a twodimensional resolution of 1.25 cm x 1.33 cm and a measurement error within +/- 50 MHz are achieved in radar detection and frequency measurement, respectively.
引用
收藏
页数:7
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