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《Science of Surveying and Mapping》 2008-03
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The BP neural network method for errors correction in digital maps

ZHANG Ju-qing,NIE Jian-liang,YANG Shu-jing(School of Geology Engineering and Geomatics,Chang'an University,Xi'an 710054,China)  
Due to some systematic errors and outliers introduced in the process of digital,it is a key issue to weaken or eliminate these influences.As the map distortion is not the same on the map or in the process of scanning,polynomial fitting can only eliminate some regular systematic errors and cannot completely eliminate their influences.BP neural network is a very complicated system which is used to approach at any precision.Combining the characteristic of the coordinate for map digitizing,the method of errors correction in digital maps is given,and effectiveness in improving the quality of digital maps is proved by an actual example.
【Fund】: 国家自然基金(批准号:40672173);; 长安大学校基金(批准号:0305-1001)
【CateGory Index】: P208
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