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It has been paid attention to improving the elevation accuracy of satellite stereo images aided by laser altimeter. The GF-7 satellite scheduled to launch in 2018 will be equipped with optical stereo cameras and a laser altimeter. ICESat (Ice, Cloud, and land Elevation Satellite) with GLAS(Geo-science Laser Altimeter System) is the first and still only laser altimeter satellite for earth observation until now. In this paper, the comprehensively analysis about the rigorous geometric model anddoi:10.11947/j.AGCS.2016.20150357 doaj:88499e52a0aa42ec96255a3d08d8607a fatcat:j624r3z75vgxtpbv7kivjl4b6y