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ID:46638770
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页数:11页
时间:2019-11-26
《双基高比线面阵结合立体测绘几何模型的构建》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、航天返回与遥感第36卷第1期32SPACECRAFTRECOVERY&REMOTESENSING2015年2月双基高比线面阵结合立体测绘几何模型的构建11223李瀛搏胡斌胡海彦方勇傅丹膺(1北京空间机电研究所,北京100094)(2西安测绘研究所,西安710054)(3航天东方红卫星有限公司,北京100094)摘要目前,中国1︰5000大比例尺航天立体测绘及城市测绘能力存在不足,现有光学测绘卫星的性能指标和测绘体制难以满足大比例尺立体测图的需求,亟需开展甚高精度航天立体测绘新体制研究。文章提出双基高比线面阵结合测绘新体制,以解决在城市等复杂地物目标测绘中存在的遮挡、畸变和辐射差异等问题。以共线
2、条件方程为基础,分析面阵相机和线阵相机的成像机制,给出顾及像点特性的各类系统误差模型,引入各类附加观测值,建立双基高比线面阵结合立体测绘的传感器严格几何成像模型,并基于仿真影像进行双基高比线面阵结合定位精度分析,验证了成像模型的正确性,可为实现1︰5000比例尺甚高精度航天立体测绘提供一种新思路和解决途径。关键词双基高比线面阵结合几何成像模型立体测绘航天遥感中图分类号:P236文献标志码:A文章编号:1009-8518(2015)01-0032-11DOI:10.3969/j.issn.1009-8518.2015.01.005BuildingofGeometricProcessingMode
3、lBasedonDoubleBaselinewithCombinationofLinearandAreaArraySensorStereoPhoto-grammetricMode11223LIYingboHUBinHUHaiyanFANGYongFUDanying(1BeijingInstituteofSpaceMechanics&Electricity,Beijing100094,China)(2Xi’anResearchInstituteofSurveyingandMapping,Xi’an710054,China)(3DFHSatelliteCO.LTD.,Beijing100094,C
4、hina)AbstractAimingatthelackofthesystemof1︰5000scalespacestereomappingandtheshortageofsurveyingcapabilityofurbanarea,inviewoftheperformanceandthesurveyingsystemsoftheexistingdo-mesticopticalmappingsatellitesunabletomeetthedemandofthelargescalestereomapping,itisurgenttodevelopaveryhighaccuracyspaceph
5、otogrammetricsatellitesystemwhichhasa1︰5000scale(orlarger).Anewsurveyingsystemsofdoublebaselinestereophotogrammetricmodewithcombinationoflinearandareaarraysensorisproposed,whichaimsatsolvingtheproblemsofbarriers,distortionsandradiationdifferencesincomplexgroundobjectmappingfortheexistingspacestereom
6、appingtechnology.Basedoncollinearityequa-tion,thedoublebaselinestereophotogrammetricmethodandthemodelofcombinedadjustmentarepresented,systematicerrorcompensationforthismodelisanalyzed,andpositionprecisionofdoublebaselinestereopho-togrammetrybasedonsimulatedimageisstudied.Theresultsshowthatthemodeofc
7、ombinationofonelineararraysensorandoneplanearraysensorhashigherpositioningprecision.Thenewsystemof1︰5000scaleveryhighaccuracyspacestereomappingcanprovidenewtechnologiesandstrategiesforachievingveryhig
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