国土资源遥感Issue(3)：141-145,5.DOI:10.6046/gtzyyg.2014.03.23
ZY-3影像在我国海岸带区域的定位精度评价
Position precision evaluation of ZY-3 satellite image in the coastal zone of China
摘要
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.关键词
资源三号(ZY-3)/传感器校正产品/定位精度/海岸带Key words
ZY-3/sensor corrected image product/position precision/coastal zone分类
天文与地球科学引用本文复制引用
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,(3):141-145,5.基金项目
国家海洋局青年海洋科学基金项目(编号:2013441)、国家海洋局第一海洋研究所基本科研业务费专项资金项目(编号:2013G37)以及国家科技支撑计划项目(编号:2012BAB16B01)共同资助。 （编号:2013441）
