This GEP method for GPS height fitting is feasible and virtual.
实验表明，GEP用于GPS高程拟合是可行且有效的。
Now GPS plane network is wide applied, but GPS height is used little.
当前，GPS平面控制网已经得到了广泛的运用，但是GPS高程却运用得不够。
Aiming at this problem, the following parts of GPS height fitting is discussed.
围绕这一问题，本文从GPS高程拟合着手作了以下探讨。
It is applied to the GPS height fitting. A practical sample is set to justify its availability.
将其应用于GPS高程拟合，并以实例验证了该算法的有效性。
The experiment certifies, the method could heighten, to a certain degree, GPS height precision.
实践证明，利用该方法在一定程度上可以提高GPS定位的精度。
So the conversion of GPS height based on RBF neural network algorithm is feasible and effective.
由此可见，RBF神经网络方法用于转换GPS高程是可行和有效的。
The distribution of the GPS leveling points obviously affects the accuracy of interpolated GPS 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。
This paper discusses the problems of optimizing parameters and robust estimation for GPS height fitting.
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。
In local area, we can arrive at preferable precision by GPS height fitting using polyhedral function model.
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。
The thesis uses the generalized extended interpolation method in precise satellite ephemeris and clock bias interpolation and GPS height fits.
本文采用广义延拓法进行卫星精密星历插值、卫星精密钟差插值和GPS高程转换。
This paper deals with the application of earth gravity field model in GPS height transformation in order to decrease the demand in bench marks.
在GPS高程转换中，为了减少对已知高程点的需求量，本文引用了地球重力场模型。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
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。
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。
The paper discusses above problems by practice, and draws some conclusions about the network configuration of BP neural network applied in GPS height conversion.
本文结合实例分析了上述问题，从而得出了BP神经网络用于GPS高程转换时网络配置问题的一些相关结论。
Some key techniques, such as attitude correction, quality control of GPS height, transformation of vertical reference datum and extraction of tidal level, are studied in detail.
这些关键问题主要有姿态改正、GPS高程质量控制、垂直基准转换、基于信号的在航潮位提取。
It is more difficult to confirm the transformation relationship between geodetic height and normal height. This is main reason of restricting application of GPS height into use.
指出GPS大地高与正常高之间的转换关系较难确定是限制GPS高程应用的主要原因。
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.
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。
Through study, the noise of time series have decreased a lot compared to primary time series, and we can concluded that ARMA model is a good method for research GPS height time series.
通过研究表明利用ARMA模型有利于降低GPS高程时间序列噪声，可用于GPS高程时间序列的分析和研究。
The accuracy of Orthometric Height will be directly affected by ellipsoidal height precision during GPS height transformation, therefore, the detection of gross error is very important.
GPS高程转换中，大地高的精度将直接影响转换后正常高的精度，为此大地高的粗差探测是比较重要的一个环节。
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.
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。
When the GPS height is transformed by the generalized extended interpolation method, there is no step sudden change between each point of districts, so it does not need to deal with again;
利用广义延拓法进行GPS高程转换后，各个分区之间不存在台阶性的突变，无需再进行处理；
Through verification of living examples, the accuracy of GPS height fitting is mainly dependent on the accuracy of GPS geodetic height, accuracy of coincident point normal height, coincident p…
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。
So it's always a hot topic how to transform GPS ellipsoidal height into level elevation and to keep certain accuracy.
如何将GPS大地高转化咸水准高程，并使其保持一定的精度，一直是人们研究的热点。
PF cotton yield monitoring system is consisted of a yield monitor, cotton flow sensor, head height sensor, ground speed sensor, fan speed sensor. GPS receiver and other components.
PF系列棉花测产系统是由产量监视器、棉花流量传感器、割台高度传感器、地运传感器、风机转速传感器、GPS接收机和其它配件组成。
AimIn order to improve approximating precision and reliability of GPS leveling of imitated model in approximating abnormal height curved surface.
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。
Based on these formulas, mathematical models are proposed for solving the normal height in GPS network concerning terrain undulation.
在此基础上建立了顾及地形影响的GPS正常高求解的数学模型。
With the engineering practice, the auhtor select some methods to deal with height fitting of a GPS control net of Guangdong province.
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。
Recently utilizing GPS/gravity to determine the normal height were adopted by some geodetics.
近年来人们往往利用GPS/重力来确定正常高。
This paper has discussed how to select geoidal model and how to determine normal height in GPS survey of long distance transmission line project.
就长距离超高压送电线路工程的GPS测量中如何选择大地水准面模型，如何确定GPS测量的高程等问题进行了讨论。
This paper has discussed how to select geoidal model and how to determine normal height in GPS survey of long distance transmission line project.
就长距离超高压送电线路工程的GPS测量中如何选择大地水准面模型，如何确定GPS测量的高程等问题进行了讨论。
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