Photonics-based MIMO radar with high-resolution and fast detection capability

被引：86
作者：
Zhang, Fangzheng [1 ]
Gao, Bindong [1 ]
Pan, Shilong [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Elect & Informat Engn, Nanjing 210016, Jiangsu, Peoples R China
来源：
OPTICS EXPRESS | 2018年 / 26卷 / 13期
基金：
中国国家自然科学基金;
关键词：
SIGNAL GENERATION; LOCALIZATION;
D O I：
10.1364/OE.26.017529
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A photonics-based multiple-input-multiple-output (MIMO) radar is proposed and demonstrated based on wavelength-division-multiplexed broadband microwave photonic signal generation and processing. The proposed radar has a large operation bandwidth_ which helps to achieve an ultra-high range resolution. Compared with a monostatic radar, improved radar performance and extended radar applications originated from the MIMO architecture can be achieved. In addition, low-speed electronics with real-time signal processing capability is feasible. A photonics-based 2 x 2 MIMO radar is established with a 4-GHz bandwidth in each transmitter and a sampling rate of 100 MSa/s in the receiver. Performance of the photonics-based multi-channel signal generation and processing is evaluated, and an experiment for direction of arrival (DOA) estimation and target positioning is demonstrated, through which the feasibility of the proposed radar system can be verified. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：17529 / 17540
页数：12
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