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- W2347509325 abstract "On the basis of the existing preliminary accuracy validations of ZY-3 satellite imagery,a further in-depth analysis and verification of the geopositioning accuracy were performed at a typical site with both flat and mountainous terrains.The rational polynomial coefficients(RPC) were refined through block adjustment with high accuracy GPS points as ground control points(GCP) and check points.Digital surface model(DSM) and digital ortho map(DOM) were automatically generated with the refined RPC,the planimetric and stereo geopositioning accuracies were evaluated,and the influences of terrain,number and distribution of GCPs were analyzed.The results show that the horizontal and vertical geopositioning accuracies of ZY-3 imagery of the test site are 1.476 m and 2.213 m respectively in the flat area,and 1.506 m and 2.895 m respectively in the mountainous area,all meeting the requirements of 1∶ 50 000 DEM and DOM production both in the flat area and mountainous area.The ZY-3 imagery can also be used for revision of the 1∶ 25 000 topographic maps." @default.
- W2347509325 created "2016-06-24" @default.
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- W2347509325 date "2012-01-01" @default.
- W2347509325 modified "2023-09-26" @default.
- W2347509325 title "Accuracy Analysis and Validation of ZY-3's Sensor Corrected Products" @default.
- W2347509325 hasPublicationYear "2012" @default.
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