摘要
雷达是实现目标探测与识别的主要手段。多功能、高精度、可重构和实时探测一直是雷达应用的发展趋势。电子技术的“带宽瓶颈”严重制约了雷达系统工作频率和带宽的提升,光子技术与生俱来的大带宽、低传输损耗、抗电磁干扰等特性,使其成为突破电子“带宽瓶颈”和“照亮雷达未来”的关键使能技术。本文总结了国内外微波光子雷达系统的主要研究进展,介绍了光子时间拉伸相干雷达系统(PTS-CR)中的关键技术,并展望了光子雷达及其关键技术的发展趋势。
Radar is the main method to achieve target detection and recognition.Multifunction,high precision,reconfigurability and real time are the development trends of radar detection.The bandwidth bottleneck of electronic technology is a limiting factor to the improvement of radar system in operating frequency and bandwidth.The inherent characteristics of photonic technology,such as large bandwidth,low transmission loss,and anti-electromagnetic interference,make it a key technology to break through the electronic bandwidth bottleneck and illuminate the future of radar.This paper summarizes the main research progress of microwave photonic radar systems and introduces the critical technologies of the photonic time-stretched coherent radar(PTS-CR).The future prospect of the development of photonic radar technologies is also discussed.
作者
李杏
张斯滕
钱娜
李曙光
郭航
陈建平
邹卫文
LI Xing;ZHANG Siteng;QIAN Na;LI Shuguang;GUO Hang;CHEN Jianping;ZOU Weiwen(Intelligent Microwave Lightwave Integration Innovation Center(iMLic),State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Aerospace Electronic and Communication Equipment Research Institute,Shanghai 201109,China)
出处
《雷达科学与技术》
北大核心
2021年第2期208-216,共9页
Radar Science and Technology
基金
国家重点研发计划(No.2019YFB2203700)
国家自然科学基金(No.61822508)。
关键词
微波光子雷达
光子时间拉伸
信号产生
信号接收
高分辨率
microwave photonic radar
photonic time-stretching
signal generation
signal reception
high resolution
