梁兴东1, 2,,,
唐跞1, 2,
温智磊1, 2,
王逸潇1, 2
1.中国科学院电子学研究所 ??北京 ??100190
2.微波成像重点实验室 ??北京 ??100190
3.中国科学院大学 ??北京 ??100049
详细信息
作者简介:丁满来:男,1982年生,博士,主要研究方向包括微波毫米波电路与系统、高分辨率合成孔径雷达系统、信号与信息处理
梁兴东:男,1973年生,研究员,研究领域包括高分辨率合成孔径雷达系统、干涉合成孔径雷达系统、成像处理及应用和实时数字信号处理
唐跞:男,1988年生,助理研究员,主要研究方向为微小型雷达系统关键技术
温智磊:男,1988年生,研究实习员,主要研究方向为微波毫米波电路设计
王逸潇:男,1986年生,助理研究员,主要研究方向为射频毫米波芯片及系统设计
通讯作者:梁兴东 xdliang@mail.ie.ac.cn
中图分类号:TN955计量
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出版历程
收稿日期:2017-12-21
修回日期:2018-07-27
网络出版日期:2018-08-21
刊出日期:2018-11-01
Design and Verification of Monolithic Integrated SAR System
Manlai DING1, 2, 3,Xingdong LIANG1, 2,,,
Li TANG1, 2,
Zhilei WENG1, 2,
Yixiao WANG1, 2
1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
2. Science and Technology on Microwave Imaging Laboratory, Beijing 100190, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
摘要
摘要:传统分立器件设计的微型合成孔径雷达(SAR)系统,在体积、功耗、重量、成本方面的发展瓶颈日益显现,且系统设计方案不利于单片集成,无法满足未来微型化和泛在化的无人平台对低成本微型载荷的需求。该文针对微型雷达载荷的迫切需求,开展高分辨率微型SAR系统研究,提出了全相参的调频连续波(FMCW)系统设计方案,解决了系统高脉间相位稳定性及高隔离度设计难题,并利用K波段高密度硅基芯片对该微型SAR方案进行技术验证,研制了原理样机并开展成像应用试验。该微型SAR系统斜距分辨率7.5 cm,系统总功耗仅为1.5 W,相比传统SAR系统在体积、重量、功耗等方面取得了显著的进步,同时为微型SAR系统的硅基单片集成奠定技术基础。
关键词:微型SAR/
单片集成SAR/
调频连续波/
锁相环
Abstract:The micro Synthetic Aperture Radar (SAR) system based on the traditional GaAs and GaN devices is not conducive to the monolithic integration, and the development bottleneck of volume, power consumption, weight and cost is becoming increasingly apparent, which is impossible to meet the needs of the miniaturized and ubiquitous unmanned platforms in the future. A new scheme for the design of a fully coherent Frequency Modulated Continuous Wave (FMCW) SAR with high resolution is proposed. The design method of high pulse phase stability and high isolation is studied and realized. The prototype of micro SAR is developed based on silicon chip and experimentally demonstrated. The micro SAR operates at K band, producing a signal bandwidth of wider than 2 GHz, enabling a range resolution of 7.5 cm. The system has made remarkable progress in terms of size, weight, power consumption and lay technical foundation for the monolithic integration of micro SAR system in a silicon chip.
Key words:Mini SAR/
Monolithic integrated SAR/
Frequency Modulated Continuous Wave (FMCW)/
Phase Locked Loop (PLL)
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