星载激光测高全波形数据处理技术研究进展  

Research progress of full waveform processing technology of satellite laser altimetry

作　　者：张志杰 谢欢[2] 童小华[2] 张捍卫[1] 李彬彬[2] ZHANG Zhijie;XIE Huan;TONG Xiaohua;ZHANG Hanwei;LI Binbin(Henan Polytechnic University,Jiaozuo,Henan 454000,China;Tongji University,Shanghai 200092,China)

机构地区：[1]河南理工大学,河南焦作454000 [2]同济大学,上海200092

出　　处：《测绘科学》2019年第12期168-178,共11页Science of Surveying and Mapping

基　　金：国家自然科学基金项目（41822106,41571407,41631178）;高分辨率对地观测系统重大专项（11-Y20A12-9001-17/18）;上海市科技创新行动计划项目（18511102100）;上海市曙光计划项目（18SG22）;中央高校基本科研业务费项目

摘　　要：针对星载激光测高系统在地形测绘、环境监测等方面具有独特的优势,该文首先介绍了主要的对地观测星载激光测高系统;然后以第一颗对地观测系统ICESat/GLAS为例,介绍该系统波形质量控制、波形滤波方法,初始距离计算方法及影响因素;波形分解是星载激光测高系统获取准确的星地距离的关键步骤;接着梳理了国内外全波形分解方法研究现状的主要进展,并对全波形分解算法及其优缺点进行了较全面的对比;最后结合即将发射的GF-7测高仪载荷特点,分析了未来要国产星载激光测高体系的波形数据处理还面临的挑战。According to space-borne laser altimeter system had unique advantages in terrain mapping,environmental monitoring,etc.,this review firstly introduced the main space-borne laser altimeter system aiming at ground observation.Then took the first earth observation ICESat/GLAS system for example,introduced the system how to control waveform quality,filter waveform,calculate the prerange and influence factors on range precision.Waveform decomposition is the key step for obtaining accurate satellite-to-ground distance by on-board laser Altimeter System.The third part put emphasis on waveform decomposition algorithm and their advantages and disadvantages comparison,and summarized the main progress of research status of waveform decomposition technology at home and abroad.Finally,combining with the load characteristics of upcoming GF-7altimeter,the paper analyzed the challenges of waveform processing of domestic space-borne laser altimeter system in the future.

关 键 词：星载激光测高 ICESat/GLAS 高斯分解 测距误差 GF-7 

分 类 号：P228.5[天文地球—大地测量学与测量工程]