利用最小二乘多项式拟合算法实现土地更新调查精准化的研究  

Application of Precision in Land Updating Investigation by Least Squares Polynomial Fitting Algorithm

作　　者：郭兴 张雪涛 左玉菊 普绍强 

机构地区：[1]云南省地矿测绘院,云南昆明650218

出　　处：《地矿测绘》2013年第1期14-16,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：随着国家社会经济的快速发展,土地利用现状更新调查工作必将朝着精准化的方向发展,而通过GPS等高精度仪器获得的变更数据与原土地利用现状图的数据不能较好地匹配,导致了测量得到的高精度数据产生了"精度偏移",而解决"精度偏移"问题是实现调查精准化的关键环节之一。针对此问题,在普洱市思茅区主城区范围内进行研究实验,提出了利用最小二乘多项式拟合算法解决这两种不同精度数据的融合问题,减弱了"精度偏移"对土地利用更新调查的影响。With the rapid socio-economic development of the country, the work of land updating investigation will surely developing toward accurate direction and the changed data obtained by GPS and other high-precision instrument can not blend well with the actuality chart data of the using about original land, resuhing in the precision data obtained through surveying generated ＂precision excursion＂, and survey precision is the one of the key links to solve the problem of ＂Precision excursion＂. On this issue, this article conducted research trials within the range of the main city area of Si- mao, proposed a method to solve the problem of two different precision data fusion by least squares polynomial fitting al- gorithm, weakened the impact of land updating investigation on ＂Precision excursion＂.

关 键 词：土地利用更新调查 精度偏移 最小二乘多项式拟合算法 GPS 

分 类 号：P228.4[天文地球—大地测量学与测量工程]