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《Science of Surveying and Mapping》 2006-04
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Ⅱ-ill conditioning diagnostics based on Euclidean norm

FENG Zun-de~(①②),LU Xiu-shan~(①),G UO Ying~(①),ZHOU Xing-dong~(②)(①Institute of Geoscience and Technology,Shandong University of Science and Technology;Qingdao,Shandong 266510;②Department of Territory Information and Mapping Engineering,Xuzhou Normal University.Xuzhou,Jiangsu 221116)  
Ill conditioning,especiallyⅡ-ill conditioning in surveying practice has strongly influenced the quality of surveying product.So how to diagnose ill conditioning and reduce its influence is very important.According to the geometry characteristic of observing space and with the aid of Euclidean norm,this paper puts forward a diagnosis means of Ⅱ-ill conditioning,which has a clear geometrical meaning and is easy to use.
【Fund】: 国家自然科学基金项目(40474005);; 地球空间环境与大地测量教育部重点实验室测绘基础基金项目(1469990324233-04-05);; 地理空间信息工程国家测绘局重点实验室基础测绘经费项目(030501801)
【CateGory Index】: P207
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