高分辨率光学遥感卫星宽幅成像技术发展浅析
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摘要
幅宽是影响高分辨率光学遥感卫星应用的重要指标。本文分析了国际上高分辨率光学遥感卫星宽幅成像的主要途径,介绍了多CCD内视场拼接、多相机外视场拼接、敏捷成像、多星组网等主流宽幅成像方式及其数据处理的技术特点,同时分析了相机垂轨摆扫成像、大面阵相机敏捷拼幅成像等新型星载宽幅影像获取方式,有助于系统地了解高分辨率光学遥感卫星宽幅成像技术进展,对于展望其发展趋势具有一定的参考作用。
Swath width is one of the important factors influencing the application efficiency of high-resolution optical remote sensing satellites. This paper analyzes various approaches for wide swath imaging of high-resolution optical remote sensing satellites all over the world, among which characteristics of four mainstream wide swath imaging modes separately by inner Fo V stitching of multiple sensor lines, external Fo V stitching of multiple cameras, agile imaging and multi-satellite network are introduced, on the aspect of raw image data acquisition and process; also, this paper analyzes the other two novel wide swath imaging modes separately by whiskbroom scanning imaging of spaceborne sensors and agile splicing imaging of large-area array camera, which are potentially available according to the technological development. The research of this paper is helpful for a comprehensive acquaintance of wide swath imaging technologies for high-resolution optical satellites and also an outlook for the trend.
Swath width is one of the important factors influencing the application efficiency of high-resolution optical remote sensing satellites. This paper analyzes various approaches for wide swath imaging of high-resolution optical remote sensing satellites all over the world, among which characteristics of four mainstream wide swath imaging modes separately by inner Fo V stitching of multiple sensor lines, external Fo V stitching of multiple cameras, agile imaging and multi-satellite network are introduced, on the aspect of raw image data acquisition and process; also, this paper analyzes the other two novel wide swath imaging modes separately by whiskbroom scanning imaging of spaceborne sensors and agile splicing imaging of large-area array camera, which are potentially available according to the technological development. The research of this paper is helpful for a comprehensive acquaintance of wide swath imaging technologies for high-resolution optical satellites and also an outlook for the trend.
引文
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[2]Xinming Tang,Fen Hu,Mi Wang,etc.Inner Fo VStitching of Spaceborne TDI CCD Images Based on Sensor Geometry and Projection Plane in Object Space[J].Remote Sense.2014,6,6 386-6 406;doi:10.3 390/rs6 076 386
[3]潘俊,胡芬,王密,等.基于虚拟线阵的ZY-1 02C卫星HR相机内视场拼接方法[J].武汉大学学报:信息科学版,2015,40(4):436-443.
[4]杨博,王密.资源一号02C卫星全色相机在轨几何定标方法[J].遥感学报,2013,17(5):1 175-1 190.
[5]孟伟灿,朱述龙,曹闻,等.TDI CCD交错拼接推扫相机严格几何模型构建与优化[J].测绘学报,2015,44(12):1 340-1 350.
[6]陈正超,罗文斐,张浩,等.北京一号小卫星多光谱图像波段配准和图像变形评价[J].遥感学报,2006,10(5):690-696.
[7]程宇峰,金淑英,王密,等.一种光学遥感卫星多相机成像系统的高精度影像拼接方法[J/OL].光学学报,http://kns.cnki.net/kcms/detail/31.1252.O4.20170510.1739.030.html.
[8]刘韬.法国SPOT-7卫星[J].卫星应用.2014(10).40-44.
[9]王世涛,宋鹏飞,王虎妹,等.一种立体测绘与宽幅成像一体化的光学成像方法:中国[P],中国专利201210590539.2015-05-27.
[10]张新伟,戴君,刘付强.敏捷遥感卫星工作模式研究[J].航天器工程,2011(7):32-38.
[11]李国元,胡芬,张重阳,等.World View-3卫星成像模式介绍及数据质量初步评价[J].测绘通报,2015(S1):11-16.
[12]Updike Todd,Comp Chris.Radiometric Use of World View-2 Imagery,Technical Note(2010),Digital Globe,1601 Dry Creek Drive Suite 260Longmont,CO,USA,80503.
[13]Digital Globe Constellation-World View-3 Specifications[EB/OL].http://www.satimagingcorp.com/satellitesensors/worldview-3/.
[14]余婧,喜进军,于龙江,等.敏捷卫星同轨多条带拼幅成像模式研究[J].航天器工程,2015,24(2):27-34.
[15]周世宏,袁野,王智磊,等.反射镜摆动宽幅成像系统及成像方法:中国[P],中国专利201510466057,2015-11-11.
[16]金淑英,王密.一种星载线阵传感器垂轨摆扫影像的几何预处理方法:中国[P],中国专利201410033502,2014-05-07.
[17]方勇,李瀛搏,崔卫平.高分辨率大面阵相机航天测绘应用立体探测模式分析[J].测绘科学技术学报,2011,28(4):235-240.
[18]莫凡,曹海翊,刘希刚,等.大比例尺航天测绘系统体制研究[J].航天器工程,2017,26(1):12-19.