最后，还进行了GPS高程的拟合计算。
Finally, it conducts the fitting computation of the GPS elevations.
围绕这一问题，本文从GPS高程拟合着手作了以下探讨。
Aiming at this problem, the following parts of GPS height fitting is discussed.
从数据诊断原理出发，研究了对拟合模型参数作显著性数据判据，据此建立高程异常模型。
In this paper, judgements of markedness of fitting model parameters are studied and elevation abnormality models are built on the basis of the principle of data diagnoses.
实验表明，GEP用于GPS高程拟合是可行且有效的。
This GEP method for GPS height fitting is feasible and virtual.
结合工程实际，对广东某市GPS网的GPS高程和联测的几何水准采用多种拟合方式进行拟合。
With the engineering practice, the auhtor select some methods to deal with height fitting of a GPS control net of Guangdong province.
一般在重合点数量充足且分布均匀的情况下，GPS高程拟合的精度可达到四等水准网的精度要求。
Generally, under the case of enough amounts and evenly distributed of coincident points, the accuracy of GPS height fitting can meet the requirement of the fourth order leveling network.
GPS跨海水准的关键问题是海峡两侧的高程基准不一致，因此无法采用常规的数值拟合方法。
The key of GPS leveling across sea is that the height datum on each side of channel is not consistent, so the general geometrical fitting method can not be used directly.
结合GPS测量和水准测量资料，利用支持向量机方法对GPS高程进行了转换，并与神经网络和多项式拟合等拟合的结果进行了比较，得出了一些有益的结论。
In this paper, a method for converting GPS height to normal one by means of support vector machine is proposed, and compared with the methods of neural network, polynomial fitting etc.
简要介绍了转换GPS高程的二次曲面拟合法，以及神经网络BP算法的基本结构和数学公式。
The conicoid fitting method used for transforming GPS elevation, and the basic structure and mathematic formulas of BP algorithm of neural networks are introduced briefly in this paper.
在高程转换系统中首先对输入的数据进行粗差探测，剔除可能存在粗差的观测数据，从而提高拟合结果的可靠性。
In the elevation conversion system, at first detected the gross errors of inputting data and then removed it, enhanced the reliability of the fitting results.
将其应用于GPS高程拟合，并以实例验证了该算法的有效性。
It is applied to the GPS height fitting. A practical sample is set to justify its availability.
目的为了提高GPS水准的拟合模型在逼近高程异常曲面时的逼近精度和可信度。
AimIn order to improve approximating precision and reliability of GPS leveling of imitated model in approximating abnormal height curved surface.
在胶南市应用GPS建立三等平面控制网及高程拟合作业过程中，所采用的数据处理方法提高了平面精度和高程拟合精度。
During the period of establishing third grade plane controlling net and elevation fitting work by using GPS, plane precision and elevation fitting precision are promoted.
本文采用二次曲面拟合、BP网络和RBF网络进行了GPS高程转换，并在网络结构改进等方面作了分析。
In this paper, the fifing method which stimulates the Geoid using quadric polynomial, BP network and RBF network are provided for the GPS height conversion.
本文研究了GPS高程拟合时对所建立的数学模型进行参数优化选择和稳健估计。
This paper discusses the problems of optimizing parameters and robust estimation for GPS height fitting.
本文介绍了沧源县三等GPS网的概况、布网方案、数据处理方法，讲述了GPS高程拟合在该网的实际运用。
The establishment of 3rd GPS network of Cangyuan county is introduced, such as network planning, data processing method and actual application of height fitting.
针对目前GPS水准拟合中几种主要方法及其存在的问题进行了讨论，特别指出了顾及高程异常模型的改进方法的优点。
Some popular methods for GPS-leveling fitting are compared. The advantages of an improved method with height anomaly model are pointed out specially.
应用有限元法与多面函数法的加权综合模型改进拟合模型在逼近高程异常曲面时的拟合效果。
Combined model on the basis of the Finite Element Method and Multisurface Function was used to improve approximating precision and reliability in modelling abnormal height surface.
介绍了GPS高程的应用理论，大地水准高的计算方法以及利用曲面拟合法计算大地水准面高，并对结果进行了分析，绘制出高程异常等值线图。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
水准联测点的分布状况对GPS高程的拟合精度有明显影响。
The distribution of the GPS leveling points obviously affects the accuracy of interpolated GPS height.
RTK高程测量的主要方法是坐标转换和高程拟合。
Coordinate transformation and height interpolation are the main methods for GPS-RTK height surveying.
高程异常一般呈多曲面分布，在局部区域内，建立多面函数模型进行GPS高程拟合，可以达到较高的精度。
In local area, we can arrive at preferable precision by GPS height fitting using polyhedral function model.
针对高程数据，给出一种规则化插补的重采样方法和基于着陆区平面拟合的粗糙度与坡度提取算法。
For elevation data, a regularized interpolation for resampling and an algorithm for extracting terrain roughness and slope with landing area plane fitting are presented.
用实际观测数据对该模型进行了试验，结果表明，用径向基神经网络转换GPS高程精度高于二次拟合法和BP神经网络法。
The model was tested with observed data. The results showed that RBF Neural Network conversion accuracy than Quadratic fitting and BP Neural Network.
为提高丘陵地区GPS水准拟合精度，建立适合当地测区的拟合模型，采用多面函数法对高程异常进行拟合。
To improve the GPS leveling fitting accuracy of hilly terrain and to build the adaptive fitting model of the coverage, this article USES the multidimensional function method to fit the height anomaly.
在系统中同时实现几种常用的高程拟合方法，以便用户根据实际情况选取合适的拟合方式。
Achieved the common fitting methods in the same system. So we can select the appropriate fitting methods according the actual situation.
GPS水准的单一模型在逼近高程异常曲面时其拟合效果往往不稳定。
The results of those simple model of GPS leveling are often unstable.
GPS水准的单一模型在逼近高程异常曲面时其拟合效果往往不稳定。
The results of those simple model of GPS leveling are often unstable.
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