Distributed Multi-target Localization System Based on Optical Wavelength Division Multiplexing Network

Q2 Physics and Astronomy 雷达学报 Pub Date : 2019-04-01 DOI:10.12000/JR19028

Zhu Dan, Xu Wei-yuan, Chen Wenjuan, Liu Jiang, P. Shilong

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Abstract

Distributed Multi-target Localization System Based on Optical Wavelength Division Multiplexing Network ZHU Dan XU Weiyuan CHEN Wenjuan LIU Jiang PAN Shilong (Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China) Abstract: A distributed multi-target localization system based on optical Wavelength Division Multiplexing (WDM) network is demonstrated. The wideband orthogonal waveforms are generated by introducing the chaotic OptoElectronic Oscillator (OEO). The optical WDM network is introduced to transmit the wideband signals from multiple distributed transmitting and receiving units to the central station for processing, and the accurate localization of multiple targets is achieved based on the time of arrival localization method. The multiple optical carriers are generated at the central station, the complex processing to achieve the highprecision of the target localization is supported by the resources at the central station, and the remote transmitting and receiving units are simplified. Moreover, a proof of concept of the distributed multi-target localization system based on optical WDM network is obtained. The localization system comprising two transmitters and two receivers is experimentally established. The orthogonal chaotic waveforms with the frequency range of 3.1~10.6 GHz are successfully generated from the chaotic OEOs. The two-dimensional localization of two targets is realized via the maximum positioning error of 7.09 cm. Additionally, the reconfiguration of the system is experimentally verified.

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基于光波分复用网络的分布式多目标定位系统

朱丹徐维远陈文娟刘江潘世龙(南京航空航天大学雷达成像与微波光子学教育部重点实验室，南京211106)摘要:研究了一种基于光波分复用(WDM)网络的分布式多目标定位系统。通过引入混沌光电振荡器(OEO)产生宽带正交波形。引入光波分复用网络，将多个分布式发射和接收单元的宽带信号传输到中心站进行处理，并基于到达时间定位方法实现多个目标的精确定位。在中心站生成多个光载波，中心站资源支持复杂的处理以实现高精度的目标定位，简化了远程发射和接收单元。最后，对基于光波分复用网络的分布式多目标定位系统的概念进行了验证。实验建立了由两台发射机和两台接收机组成的定位系统。在此基础上，成功地生成了频率范围为3.1~10.6 GHz的正交混沌波形。最大定位误差为7.09 cm，实现了两个目标的二维定位。此外，对系统的重构进行了实验验证。

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来源期刊

雷达学报 Physics and Astronomy-Instrumentation

CiteScore

4.10

自引率

0.00%

发文量

882

期刊介绍： Journal of Radars was founded in 2012 by the Institute of Space and Astronautical Information Innovation of the Chinese Academy of Sciences (formerly the Institute of Electronics) and the China Radar Industry Association (CRIA), which is located in the high-end academic journal and academic exchange platform in the field of radar, and is committed to promoting and leading the scientific and technological development in the field of radar. The journal can publish Chinese papers and English papers, and is now a bimonthly journal. Journal of Radars focuses on theory, originality and foresight, and its scope of coverage mainly includes: radar theory and system, radar signal and data processing technology, radar imaging technology, radar identification and application technology. Journal of Radars has been included in domestic core journals and foreign Scopus, Ei and other databases, and was selected as ‘China's high-quality science and technology journals’, and ranked the first in the category of electronic technology and communication technology in the ‘Chinese Core Journals List (2023 Edition)’.