资源三号02星激光测高误差分析与指向角粗标定
|
摘要
2016年5月30日,中国成功发射了民用三线阵立体测图卫星资源三号02星,该卫星搭载了中国第一个用于对地观测的激光测高试验性载荷。资源三号02星在轨运行以来获取了多轨测高数据,为保证其测高数据的有效应用,需分析影响测高精度的各项误差来源,并通过一定的方法予以消除或减弱。首先根据卫星激光测高严密几何模型分析资源三号02星激光测高的各项误差来源,分析表明激光指向角对激光测高精度的影响相对较大;构建通过已有大范围地形数据进行激光指向角粗标定的数学模型,并利用已有公开地形数据(AW3D30DSM)对激光指向角进行粗标定,从而提高激光足印定位精度。实验结果表明,利用已有地形数据对指向角进行粗标定后,能将激光测高精度从几十米提高到3m以内,验证了卫星激光测高误差分析的合理性和利用已有地形数据修正激光指向角的数学模型的有效性,为消除卫星激光测高粗差提供了参考,能为星载激光测高外场在轨检校工作提供支撑。
The Ziyuan-3 02 satellite(ZY-3 02),which is the second domestic stereo mapping satellite in China,was launched at May 30,2016.Apart from optical cameras,the ZY-3 02 satellite carries the first Chinese satellite laser altimeter for Earth observation.During orbiting,the ZY-3 02 has obtained a certain amount of laser altimeter data.Based on this data,we analyze the error sources and conducts preliminary pointing angle calibration.In this paper,comprehensive analysis of the error sources is presented according to the rigorous geometric model of satellite laser altimeter,which shows that the bias of laser pointing contributes most to the height error of laser footprints.Then,a novel method for preliminary laser pointing calibration method without field surveying is proposed and its mathematical model is presented.After that the open source topographic data(AW3 D30 DSM)is used to rectify the laser pointing angle.Experimental results indicate that the rectified pointing angle based on exist topographic data can improve the height accuracy from more than ten meters to less than 3 meters.Thus the error analysis is proved to be right and the preliminary laser pointing calibration method to be useful.The proposed method gives a way to eliminate the coarse errors of laser footprint location and strongly supports the ground calibration of satellite laser altimeter which will farther improves the positioning accuracy of laser footprints.
The Ziyuan-3 02 satellite(ZY-3 02),which is the second domestic stereo mapping satellite in China,was launched at May 30,2016.Apart from optical cameras,the ZY-3 02 satellite carries the first Chinese satellite laser altimeter for Earth observation.During orbiting,the ZY-3 02 has obtained a certain amount of laser altimeter data.Based on this data,we analyze the error sources and conducts preliminary pointing angle calibration.In this paper,comprehensive analysis of the error sources is presented according to the rigorous geometric model of satellite laser altimeter,which shows that the bias of laser pointing contributes most to the height error of laser footprints.Then,a novel method for preliminary laser pointing calibration method without field surveying is proposed and its mathematical model is presented.After that the open source topographic data(AW3 D30 DSM)is used to rectify the laser pointing angle.Experimental results indicate that the rectified pointing angle based on exist topographic data can improve the height accuracy from more than ten meters to less than 3 meters.Thus the error analysis is proved to be right and the preliminary laser pointing calibration method to be useful.The proposed method gives a way to eliminate the coarse errors of laser footprint location and strongly supports the ground calibration of satellite laser altimeter which will farther improves the positioning accuracy of laser footprints.
引文
[1] Wang Xianwei,Cheng Xiao,Gong Peng,et al.Earth Science Applications of ICESat/GLAS:A Review[J].International Journal of Remote Sensing,2011,32(23):8 837-8 864
[2] Schutz B E,Zwally H J,Shuman C A,et al.Overview of the ICESat Mission[J].Geophysical Research Letters,2005,32(21):L21S01-1-L21S01-4
[3] Yue Chunyu,Zheng Yongchao,Tao Yuliang.Study on Space-Borne Laser Altimeter Supported Satellite Photogrammetry[J].Spacecraft Recovery&Remote Sensing,2013,34(4):71-76(岳春宇,郑永超,陶宇亮.星载激光测高仪辅助卫星摄影测量浅析[J].航天返回与遥感,2013,34(4):71-76)
[4] Wang Renxiang, Wang Jianrong.Technology of Bundle Adjustment Using Two Line Array CCD Satellite Image Combined Laser Ranging Data[J].Journal of Geomatics Science and Technology,2014,31(1):1-3(王任享,王建荣.二线阵CCD卫星影像联合激光测距数据光束法平差技术[J].测绘科学技术学报,2014,31(1):1-3)
[5] Li Guoyuan,Tang Xinming,Zhang Chongyang,et al.Multi-criteria Constraint Algorithm for Selecting ICESat/GLAS Data as Elevation Control Points[J].Journal of Remote Sensing,2017,21(1):96-104(李国元,唐新明,张重阳,等.多准则约束的ICESat/GLAS高程控制点筛选[J].遥感学报,2017,21(1):96-104)
[6] Li Guoyuan,Tang Xinming,Gao Xiaoming,et al.ZY-3Block Adjustment Supported by GLAS Laser Altimetry Data[J].The Photogrammetric Record,2016,31(153):88-107
[7] Li Guoyuan,Tang Xinming,Wang Huabin,et al.ZY-3Three Line Array Images Block Adjustment Supported by GLAS Data[C].The 3th Annual Conference on High Resolution Earth Observation,Beijing,2015(李国元,唐新明,王华斌,等.GLAS激光测高数据辅助的资源三号三线阵区域网平差研究[C].第三届高分辨率对地观测学术年会,北京,2015)
[8] Huang Chaowei,Li Guoyuan,Li Shanshan,et al.Error Analysis of Satellite Laser Altimeter System Under Different Terrain Conditions[J].Science of Surveying and Mapping,2016,41(1):44-49(黄朝围,李国元,李姗姗,等.不同地形条件下的星载激光测高系统误差分析[J].测绘科学,2016,41(1):44-49)
[9] Ma Yue,Yang Fanlin,Lu Xiushan,et al.Elevation Error Analysis of Spaceborne Laser Altimeter for Earth Observation[J].Infrared and Laser Engineering,2015,44(3):1 043-1 047(马跃,阳凡林,卢秀山,等.对地观测星载激光测高系统高程误差分析[J].红外与激光工程,2015,44(3):1 043-1 047)
[10]Deng Yongtao,Li Xu,Yan Fanjiang.Attitude Determination Method and Error Analysis of Spaceborne Laser Range Finder[J].Spacecraft Recovery&Remote Sensing,2015,36(3):86-91(邓永涛,李旭,颜凡江.一种星载激光测距仪姿态的确定方法及误差分析[J].航天返回与遥感,2015,36(3):86-91)
[11]Tang Xinming,Li Guoyuan,Gao Xiaoming,et al.The Rigorous Geometric Model of Satellite Laser Altimeter and Preliminarily Accuracy Validation[J].Acta Geodaetica et Cartographica Sinica,2016,45(10):1 182-1 191(唐新明,李国元,高小明,等.卫星激光测高严密几何模型构建及精度初步验证[J].测绘学报,2016,45(10):1 182-1 191)
[12] Martin C,Thomas R,Krabill W,et al.ICESat Range and Mounting Bias Estimation over PreciselySurveyed Terrain[J].Geophysical Research Letters,2005,32(21):L21S07-1-L21S07-4
[13]Sagi F.Calibration of Spaceborne Laser Altimeters-An Algorithm and the Site Selection Problem[J].IEEE Transactions on Geoscience and Remote Sensing,2006,44(6):1 484-1 492
[14]Fricker H,Borsa A,Minster B,et al.Assessment of ICESat Performance at the Salar de Uyuni,Bolivia[J].Geophysical Research Letters,2005,32(21):L21S06-1-L21S06-5
[15]Tang Xinming,Zhang Guo,Zhu Xiaoyong,et al.Triple Linear-Array Imaging Geometry Model of Ziyuan-3Surveying Satellite and Its Validation[J].Acta Geodaetica et Cartographica Sinica,2012,41(2):191-198(唐新明,张过,祝小勇,等.资源三号测绘卫星三线阵成像几何模型构建与精度初步验证[J].测绘学报,2012,41(2):191-198)
[16]Zhao Chunmei,Tang Xinming.Precise Orbit Determination for the ZY-3Satellite Mission Using GPS Receiver[J].Journal of Astronautics,2013,34(9):1 202-1 206(赵春梅,唐新明.基于星载GPS的资源三号卫星精密定轨[J].宇航学报,2013,34(9):1 202-1 206)
[17]Tang Xinming,Xie Junfeng, Wang Xiao,et al.High-Precision Attitude Post-Processing and Initial Verification for the ZY-3Satellite[J].Remote Sensing,2015,7(1):111-134
[18]Tang Xinming,Zhou Ping,Zhang Guo,et al.Geometric Accuracy Analysis Model of the Ziyuan-3Satellite Without GCPs[J].Photogrammetric Engineering&Remote Sensing,2015,81(12):927-934
[19]Zhang Jianqing,Pan Li,Wang Shugen.Photogrametry[M].Wuhan:Wuhan University Press,2010(张剑清,潘励,王树根.摄影测量学[M].武汉:武汉大学出版,2010)
[20]Schutz B E.Laser Footprint Location(Geolocation)and Surface Profiles[R].Center for Space Research,the University of Texas at Austin,Texas,USA,2002
[21]McCarthy D,Petit G.IERS Conventions 2003,Technical Note 32[R].International Earth Rotation and Reference System Service,Frankfurt,Germany,2004
[22]Liu Xuejun,Gong Jianya,Zhou Qiming,et al.A Study of Accuracy and Algorithms for Calculating Slope and Aspect Based on Grid Digital Elevation Model(DSM)[J].Acta Geodaetica et Cartographica Sinica,2004,33(3):258-263(刘学军,龚健雅,周启鸣,等.基于DEM坡度坡向算法精度的分析研究[J].测绘学报,2004,33(3):258-263)
[23]Group of Surveying Adjustment,School of Geodesy and Geomatics,Wuhan University.Error Theory and Foundation of Surveying Adjustment[M].3rd ed.Wuhan:Wuhan University Press,2014(武汉大学测绘学院测量平差学科组.误差理论与测量平差基础[M].3版.武汉:武汉大学出版社,2014)
[24]Takaku J,Tadono T,Tsutsui K,et al.Validation of‘AW3D’Global DSM Generated from ALOS PRISM[C].ISPRS Annals of the Photogrammetry,Remote Sensing and Spatial Information Sciences,Prague,Czech Republic,2016
[25]Li Guoyuan,Tang Xinming.Analysis and Validation of ZY-3 02Satellite Laser Altimetry Data[J].Acta Geodaetica et Cartographica Sinica,2017,46(12):1 939-1 949(李国元,唐新明.资源三号02星激光测高精度分析与验证[J].测绘学报,2017,46(12):1 939-1 949)
[2] Schutz B E,Zwally H J,Shuman C A,et al.Overview of the ICESat Mission[J].Geophysical Research Letters,2005,32(21):L21S01-1-L21S01-4
[3] Yue Chunyu,Zheng Yongchao,Tao Yuliang.Study on Space-Borne Laser Altimeter Supported Satellite Photogrammetry[J].Spacecraft Recovery&Remote Sensing,2013,34(4):71-76(岳春宇,郑永超,陶宇亮.星载激光测高仪辅助卫星摄影测量浅析[J].航天返回与遥感,2013,34(4):71-76)
[4] Wang Renxiang, Wang Jianrong.Technology of Bundle Adjustment Using Two Line Array CCD Satellite Image Combined Laser Ranging Data[J].Journal of Geomatics Science and Technology,2014,31(1):1-3(王任享,王建荣.二线阵CCD卫星影像联合激光测距数据光束法平差技术[J].测绘科学技术学报,2014,31(1):1-3)
[5] Li Guoyuan,Tang Xinming,Zhang Chongyang,et al.Multi-criteria Constraint Algorithm for Selecting ICESat/GLAS Data as Elevation Control Points[J].Journal of Remote Sensing,2017,21(1):96-104(李国元,唐新明,张重阳,等.多准则约束的ICESat/GLAS高程控制点筛选[J].遥感学报,2017,21(1):96-104)
[6] Li Guoyuan,Tang Xinming,Gao Xiaoming,et al.ZY-3Block Adjustment Supported by GLAS Laser Altimetry Data[J].The Photogrammetric Record,2016,31(153):88-107
[7] Li Guoyuan,Tang Xinming,Wang Huabin,et al.ZY-3Three Line Array Images Block Adjustment Supported by GLAS Data[C].The 3th Annual Conference on High Resolution Earth Observation,Beijing,2015(李国元,唐新明,王华斌,等.GLAS激光测高数据辅助的资源三号三线阵区域网平差研究[C].第三届高分辨率对地观测学术年会,北京,2015)
[8] Huang Chaowei,Li Guoyuan,Li Shanshan,et al.Error Analysis of Satellite Laser Altimeter System Under Different Terrain Conditions[J].Science of Surveying and Mapping,2016,41(1):44-49(黄朝围,李国元,李姗姗,等.不同地形条件下的星载激光测高系统误差分析[J].测绘科学,2016,41(1):44-49)
[9] Ma Yue,Yang Fanlin,Lu Xiushan,et al.Elevation Error Analysis of Spaceborne Laser Altimeter for Earth Observation[J].Infrared and Laser Engineering,2015,44(3):1 043-1 047(马跃,阳凡林,卢秀山,等.对地观测星载激光测高系统高程误差分析[J].红外与激光工程,2015,44(3):1 043-1 047)
[10]Deng Yongtao,Li Xu,Yan Fanjiang.Attitude Determination Method and Error Analysis of Spaceborne Laser Range Finder[J].Spacecraft Recovery&Remote Sensing,2015,36(3):86-91(邓永涛,李旭,颜凡江.一种星载激光测距仪姿态的确定方法及误差分析[J].航天返回与遥感,2015,36(3):86-91)
[11]Tang Xinming,Li Guoyuan,Gao Xiaoming,et al.The Rigorous Geometric Model of Satellite Laser Altimeter and Preliminarily Accuracy Validation[J].Acta Geodaetica et Cartographica Sinica,2016,45(10):1 182-1 191(唐新明,李国元,高小明,等.卫星激光测高严密几何模型构建及精度初步验证[J].测绘学报,2016,45(10):1 182-1 191)
[12] Martin C,Thomas R,Krabill W,et al.ICESat Range and Mounting Bias Estimation over PreciselySurveyed Terrain[J].Geophysical Research Letters,2005,32(21):L21S07-1-L21S07-4
[13]Sagi F.Calibration of Spaceborne Laser Altimeters-An Algorithm and the Site Selection Problem[J].IEEE Transactions on Geoscience and Remote Sensing,2006,44(6):1 484-1 492
[14]Fricker H,Borsa A,Minster B,et al.Assessment of ICESat Performance at the Salar de Uyuni,Bolivia[J].Geophysical Research Letters,2005,32(21):L21S06-1-L21S06-5
[15]Tang Xinming,Zhang Guo,Zhu Xiaoyong,et al.Triple Linear-Array Imaging Geometry Model of Ziyuan-3Surveying Satellite and Its Validation[J].Acta Geodaetica et Cartographica Sinica,2012,41(2):191-198(唐新明,张过,祝小勇,等.资源三号测绘卫星三线阵成像几何模型构建与精度初步验证[J].测绘学报,2012,41(2):191-198)
[16]Zhao Chunmei,Tang Xinming.Precise Orbit Determination for the ZY-3Satellite Mission Using GPS Receiver[J].Journal of Astronautics,2013,34(9):1 202-1 206(赵春梅,唐新明.基于星载GPS的资源三号卫星精密定轨[J].宇航学报,2013,34(9):1 202-1 206)
[17]Tang Xinming,Xie Junfeng, Wang Xiao,et al.High-Precision Attitude Post-Processing and Initial Verification for the ZY-3Satellite[J].Remote Sensing,2015,7(1):111-134
[18]Tang Xinming,Zhou Ping,Zhang Guo,et al.Geometric Accuracy Analysis Model of the Ziyuan-3Satellite Without GCPs[J].Photogrammetric Engineering&Remote Sensing,2015,81(12):927-934
[19]Zhang Jianqing,Pan Li,Wang Shugen.Photogrametry[M].Wuhan:Wuhan University Press,2010(张剑清,潘励,王树根.摄影测量学[M].武汉:武汉大学出版,2010)
[20]Schutz B E.Laser Footprint Location(Geolocation)and Surface Profiles[R].Center for Space Research,the University of Texas at Austin,Texas,USA,2002
[21]McCarthy D,Petit G.IERS Conventions 2003,Technical Note 32[R].International Earth Rotation and Reference System Service,Frankfurt,Germany,2004
[22]Liu Xuejun,Gong Jianya,Zhou Qiming,et al.A Study of Accuracy and Algorithms for Calculating Slope and Aspect Based on Grid Digital Elevation Model(DSM)[J].Acta Geodaetica et Cartographica Sinica,2004,33(3):258-263(刘学军,龚健雅,周启鸣,等.基于DEM坡度坡向算法精度的分析研究[J].测绘学报,2004,33(3):258-263)
[23]Group of Surveying Adjustment,School of Geodesy and Geomatics,Wuhan University.Error Theory and Foundation of Surveying Adjustment[M].3rd ed.Wuhan:Wuhan University Press,2014(武汉大学测绘学院测量平差学科组.误差理论与测量平差基础[M].3版.武汉:武汉大学出版社,2014)
[24]Takaku J,Tadono T,Tsutsui K,et al.Validation of‘AW3D’Global DSM Generated from ALOS PRISM[C].ISPRS Annals of the Photogrammetry,Remote Sensing and Spatial Information Sciences,Prague,Czech Republic,2016
[25]Li Guoyuan,Tang Xinming.Analysis and Validation of ZY-3 02Satellite Laser Altimetry Data[J].Acta Geodaetica et Cartographica Sinica,2017,46(12):1 939-1 949(李国元,唐新明.资源三号02星激光测高精度分析与验证[J].测绘学报,2017,46(12):1 939-1 949)