摘要
阐述了最小二乘配置法的基本原理,通过实例比较了平面拟合、二次曲面拟合、最小二乘配置法求解的GPS异常值,得出了最小二乘配置模型求解的GPS异常值在精度上优于用平面拟合和二次曲面拟合所得值的精度.通过残差对比分析,表明最小二乘配置法比平面拟合、二次曲面拟合更适合用于GPS异常值的求解.
The basic principle of the least square collocation method is briefly introduced. Comparing the plane fitting, quadric surface fitting and the least square collocation for solving the GPS outliers by examples, that the least square collocation for solving GPS outliers is better than the plane fitting and quadratic surface fitting in the accuracy is obtained. By comparatively analyzing the residuals, it is indicated that the least square collocation is more suitable than the plane and quadric surface fitting for solving GPS outliers.
出处
《河南科学》
2013年第2期208-211,共4页
Henan Science
基金
国家自然科学基金项目(41064001)
广西自然科学基金项目(桂科基0991023)
关键词
平面拟合
二次曲面拟合
最小二乘配置
高程异常
plane fitting
quadric surface fitting
least square collocation
height anomaly
