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1)  GPS height fitting
GPS高程拟合
1.
Application of BPSA hybrid strategy in GPS height fitting;
BPSA混合策略在GPS高程拟合中的应用
2.
GPS height fitting uses this principle to extract normal height,in the paper,the principle and superiority of curved surface spline func- tion interpolation are discussed,the GPS height fitting is carried,and the known points are validated,as re- sults,it is reliable,and the method is feasible and effective,has a certain scientificalness and practicability.
GPS高程拟合利用了在一定的范围内高程异常具有一定的几何相关性,求解高程异常。
3.
When implementing GPS height fitting, if the parameters of the functional model or the weight matrix of the stochastic model are not rational, the mathematical model will not agree with the fact.
在进行GPS高程拟合时,如果所用函数模型中未知参数个数不恰当,或者随机模型中采用了一个不合理的权阵,都将导致所建数学模型和客观实际存在较大偏差,而影响最终的拟合精度。
2)  GPS elevation fitting
GPS高程拟合
1.
Research on the Optimization model of GPS Elevation Fitting in Jiaozuo;
焦作市GPS高程拟合模型优选研究
2.
Based on the analysis of several mathematical methods for GPS elevation fitting,this paper provides corresponding mathematical models.
首先对GPS高程拟合的几种数学方法进行讨论和分析,给出了相应的数据模型。
3)  GPS fitting height
GPS拟合高程
4)  GPS height collocation
GPS水准高程拟合
1.
Based on terrain,the theory of artificial neural network is used in this paper for GPS height collocation.
从考虑地形改正的基础出发,运用神经网络进行GPS水准高程拟合。
5)  GPS quasi-stable leveling
GPS拟和高程
6)  elevation fitting
高程拟合
1.
GPS elevation fitting and levelling survey contrast experiment in minor district;
小地区GPS高程拟合和水准测量对比试验
2.
Application of GPS elevation fitting method in geophysical measurement.;
GPS高程拟合方法在物探测量中的应用
3.
According to specialty of mining area control surveying, based on mining area leveling network, use leveling tie-in enough number, evenly distributed GPS points, then use GPS elevation fitting to determine elevation for the rest GPS points and establish a mining area vertical control network.
根据矿区控制测量的特点,在矿区水准网基础上,用水准测量的方法联测数量足够、分布均匀的GPS点,然后用GPS高程拟合的方法确定其余大量GPS点的高程,建立矿区GPS高程控制网。
补充资料:非线性最小二乘拟合
分子式:
CAS号:

性质:用最小二乘法拟合非线性方程。有些变量之间的非线性模型,通过变量变换可以化为线性模型,此称为外在线性。而有些变量之间的非线性模型,通过变量变换不能化为线性模型,通称为内在非线性。对于非线性模型y=f(ξ,θ)+ε,其残差平方和。S(θ)是θ的函数,当模型关于θ是非线性的,正规方程关于θ也是非线性的。基于使残差平方和s(θ)达到极小的原理求出θ的估计值,拟合非线性回归方程。

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