Abstract:With China's coastal zone as the research area, 6 ZY-3 sensor corrected products were chosen for evaluation, which covered Qingdao of Shandong, Yancheng of Jiangsu and Wenzhou of Zhejiang from north to south. The authors used high accuracy GPS points to evaluate the autonomous positioning precision in comparison with SPOT5 images. Then DOMs were generated with high accuracy GPS points as ground control points(GCPs)and national 1:50 000 DEM products, and the influences of the quantity and distribution of GCPs were analyzed.The results show that the average autonomous positioning precision of ZY-3 panchromatic image and that of multispectral image are 19.6 m and 23.0 m, respectively. The autonomous positioning precisions of ZY-3 panchromatic image and multispectral image are better than the precision of SPOT5 images. With 1 GCP at the four corners, the positioning precision of DOM is less than 2 pixels. With 4 GCPs, the positioning precision of DOM is about 1 pixel. With 2 landside corner GCPs, the positioning precision of DOM is less than 3 m. With 3 landside GCPs, the positioning precision of DOM is lower than that of 2 landside GCPs, especially at the seaside. The results show that, with a few GCPs, ZY-3 DOM can reach high accuracy and satisfy the need of coastal zone remote sensing survey.
刘荣杰, 张杰, 李晓敏, 马毅. ZY-3影像在我国海岸带区域的定位精度评价[J]. 国土资源遥感, 2014, 26(3): 141-145.
LIU Rongjie, ZHANG Jie, LI Xiaomin, MA Yi. Position precision evaluation of ZY-3 satellite image in the coastal zone of China. REMOTE SENSING FOR LAND & RESOURCES, 2014, 26(3): 141-145.
[1] 曹海翊,刘希刚,李少辉,等."资源三号"卫星遥感技术[J].航天返回与遥感,2012,33(3):7-16. Cao H Y,Liu X G,Li S H,et al.ZY-3 satellite remote sensing technology[J].Spacecraft Recovery & Remote Sensing,2012,33(3):7-16. [2] 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. Tang X M,Zhang G,Zhu X Y,et al.Triple linear-array imaging geometry model of ZY-3 surveying satellite and its validation[J].Acta Geodaetica et Cartographica Sinica,2012,41(2):191-198. [3] 李德仁,王密."资源三号"卫星在轨几何定标及精度评估[J].航天返回与遥感,2012,33(3):1-6. Li D R,Wang M.On-orbit geometric calibration and accuracy assessment of ZY-3[J].Spacecraft Recovery & Remote Sensing,2012,33(3):1-6. [4] 刘斌,孙喜亮,邸凯昌,等.资源三号卫星传感器校正产品定位精度验证与分析[J].国土资源遥感,2012,24(4):36-40. Liu B,Sun X L,Di K C,et al.Accuracy analysis and validation of ZY-3's sensor corrected products[J].Remote Sensing for Land and Resources,2012,24(4):36-40. [5] 徐文,龙小祥,喻文勇,等."资源三号"卫星三线阵影像几何质量分析[J].航天返回与遥感,2012,33(3):55-64. Xu W,Long X X,Yu W Y,et al.Geometric quality analysis of three-line array CCD imagery of ZY-3 satellite[J].Spacecraft Recovery & Remote Sensing,2012,33(3):55-64. [6] 马治,熊康军,陶源,等.基于资源三号卫星影像的1:50 000数据生产试验[J].测绘与空间地理信息,2012,35(11):214-216. Ma Z,Xiong K J,Tao Y,et al.Pilot production of ZY-3 satellite images[J].Geomatics & Spatial Information Technology,2012,35(11):214-216. [7] Digital Globe,Inc.QuickBird spacecraft information and specifications[EB/OL].[2013-06-03].http://www.digitalglobe.com/resources/satellite-information. [8] 国家海洋局908专项办公室.海岛海岸带卫星遥感调查技术规程[M].北京:海洋出版社,2005. Special Office of 908 Project.Island and coastal zone remote sensing survey regulation[M].Beijing:Marine Press,2005.