摘要
合成孔径雷达(SAR)是一种主动微波遥感设备,具有不受天气、气候影响的优势,具备全天时、全天候观测的能力,在全球测绘、自然灾害防治等领域得到了广泛的应用。目前在轨SAR卫星主要频段为L、C、X、Ku等,毫米波(Ka)SAR卫星因易实现超高分辨率、系统体积小、重量轻等优点已成为未来SAR卫星的发展热点之一。本文分析了毫米波SAR卫星的特点,综述了其发展现状,阐述了其主要应用方向,展望了毫米波SAR卫星技术的发展趋势。
Synthetic aperture radar(SAR)is an active microwave remote sensing equipment.It has the advantage of not being affected by weather and climate,has the ability of all-day and all-weather observation,and has been widely used in the fields such as global surveying,global mapping,and natural disaster prevention.At present,the main frequency bands of on-orbit SAR satellites are L,C,X,Ku,etc.Millimeter-wave(Ka)SAR satellites have become one of the hotspots for the development of SAR satellites in the future,owing to their advantages such as easy realization of ultra-high resolution,small size,and light weight.In this paper,the characteristics of millimeter-wave SAR satellites are analyzed.The development status is reviewed,the main application directions are described,and the development trend of millimeter-wave SAR satellite technology is prospected.
作者
王辉
付玉龙
李金亮
WANG Hui;FU Yulong;LI Jinliang(Shanghai Key Laboratory of Remote Sensing and Millimeter Wave Information Acquisition and Application Technology,Shanghai 201109,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China;Key Laboratory of Millimeter Imaging,Shanghai Academy of Spaceflight Technology,Shanghai 201109,China)
出处
《上海航天（中英文）》
CSCD
2022年第3期1-13,共13页
Aerospace Shanghai（Chinese&English）
关键词
雷达遥感
毫米波
合成孔径雷达卫星
调频连续波
脉冲
radar remote sensing
millimeter wave
synthetic aperture radar satellite
frequency modulated continuous wave
pulse
