Optical network solution to the synchronization of distributed coherent aperture radar

被引：14
|
作者：
Zheng, Zhennan [1 ]
Qian, Jinwang [1 ]
Lei, Mingzheng [1 ]
Song, Chunqi [1 ]
Xie, Mutong [1 ]
Gao, Xinlu [1 ]
Huang, Shanguo [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
来源：
OPTICS LETTERS | 2019年 / 44卷 / 08期
基金：
中国国家自然科学基金;
关键词：
TIME TRANSFER;
D O I：
10.1364/OL.44.002121
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Distributed coherent aperture radar (DCAR) is an important direction for next-generation radar due to its high sensitivity. The challenge to realize DCAR is the synchronization among geographically distributed radar units. We propose an optical network for DCAR synchronization. The proposed network achieves functions of phase-coded pulse generation, time synchronization, and phase synchronization with the help of microwave photonics techniques. Proof-of-concept experiments are conducted in fiber and space transmission scenarios. The combined radar beams have negligible energy loss when synchronization is achieved. (C) 2019 Optical Society of America
引用
收藏
页码：2121 / 2124
页数：4
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