高程系统

导线测量是一项精密而细致的工作，直接影响到路线的定线和高程系统的控制。

The orientation measurement is a precise and detailed job , and it affects directly the route alignment and the control of elevation system .

全文分析了GPS高程系统与我国现行高程系统的区别与联系；

The paper analyzes the difference of GPS elevation system from one in force and their relations each to other ;

介绍了与GPS高程系统有关的几个主要概念，即大地高系统、正高系统、正常高系统及垂线偏差；

This paper introduced the conceptions concerning GPS height system , such as geodetic , orthometric and normal height system and deflection of the vertical .

理论研究和实验表明，新方法克服了单纯GPS水准无法连接不同高程系统的困难，是一种有效的高精度方法。

Theoretic study and experiment show that the new method solves the problem which simplex GPS leveling can 't connect different height systems and so it is an effectively precise method .

本文针对成都市现有高程系统在使用中的相关问题，对该地区内GPS测高转换到正常高等实际技术问题进行了一定的探讨。

Aiming at the pertinent problems of the Chengdu existing elevation systems , technical problems , such as converting ellipsoidal heights to normal heights of the region , are discussed in the thesis .

长江河口地区的高程系统

On the Height System of the Changjiang Estuary Region

关于重力勘查的高度改正应采用何种高程系统的讨论

A discussion on the selection of elevation system in altitude correction of gravity survey

天津市大沽高程系统与国家高程系统数值关系

Study on Numerical Relations between Dagu Height System of Tianjin and the Yellow Sea Height System

计算结果表明，新模型能较好的改善高程系统不一致对平面位置精度的影响。

The calculation results show that the new model can alleviate obviously the effect of inconsistent elevation systems on the plane position precision .

经1985年12月～1987年3月，三年度夏测绘科学考察，在中国南极长城站地区建立了一套完整的、精确的测绘基准系统。它包括大地坐标系统、高程系统和重力参考系统。

In the Great Wall Station area , Antarctica , a complete and accurate surveying system has been established during three years of the Antarctic surveying research expedition .

坐标解算中，参考椭球的大小及定位、坐标转换参数的选择和确定、投影变形、高程系统等不可避免影响到库容的精度。

Coordinate calculation , scale and position of reference ellipsis , election and determination of coordinate transformation parameters , projection reformation and height system are main influences effects to accuracy of reservoir volume observed .

在水利工程规划中，有些基础资料由于保存不当而造成残缺不全，如库区地形图高程系统不明确等，给此类水库规划工作带来一定的难度。

In planning of waterworks , some problem exist such as some basic materials were amiss for not properly preserving , that made any reservoir area altitude system of topography unknow , and made it formidable to plan these sorts of reservoir .

简要介绍长江河口地区吴淞零点的历史沿革，分析了长江河口地区水域平均海水面、理论深度基准面的空间变化，进而讨论长江河口地区的高程系统。

It briefly introduces the historical change of Wusong Datum in the Changjiang Estuary region , and analyzes the spatial variations of regional mean sea level and theoretical bathymetrical datum plane in this region . A discussion is also given to the height system of the Changjiang Estuary region .

GPS高程转换系统的研究及其应用

The Research and Application of GPS Height Transform System

基于RDBMS的海量数字高程模型系统

RDBMS-based system for mass digital elevation model

单片机在某雷达高程标定系统中的应用

Application of Chip Microcomputer in Elevation Calibration System of a Certain Radar

宝钢高程监测系统及沉降观测基准点探讨

Research on Datum Point in Height Monitoring System and Sedimentation Observation on Baoshan Steel Works

TERCOM地形高程辅助导航系统发展及应用研究

Assisted examination Development and application of TERCOM elevation-aided navigation system

介绍了地形轮廓匹配（TERCOM）地形高程辅助导航系统的工作原理、系统组成和技术应用，分析了地形轮廓匹配算法的性能指标；

The paper introduces the basic principle , composing and technologic application of terrain contour matching ( TERCOM ) elevation-aided navigation system . The TERCOM algorithms and performance targets are provided and analyzed .

铁路线路三角网数模及地面高程内插系统研究

Study of Triangulated Irregular Network and Interpolating Terrain Elevation In Railway Location

1985国家高程基准的系统差

Systematic Error of the 1985 National Height Datum

数字高程模型编辑系统的设计与实现

DEM Edit System : Design and Implementation

GPS高程拟合分析与系统设计

Re sea rch of GPS Height Fitting System

数字高程模型是gis系统的重要组成部分，高程内插是其中的关键技术。

DEM is one of the important parts of the GIS , Altitude interpolation is the key technical issue in DEM .

大流域数字高程模型数据管理系统

Data management system of digital elevation model for a large river basin

桥梁施工控制中高程测点模型系统误差的消除

Elimination of Elevation System Error of Observation Point Model in Bridge Construction Control

基于农田高程信息快速采集系统的平整精度评价方法整体硬质合金高精度平面拉刀的研究和开发

Study on Evaluation Methods of Farmland-Leveling Precision Based on Information Fast Collecting System of Farmland Altitude

三峡左岸高程98.7m混凝土拌和系统预冷混凝土设计

Precooled Concrete Design in Concrete Mixing Plant at Elevation 98 . 7m on the Left Bank of the Three Gorges

在确保GPS/水准点成果可靠的前提下，用其对重力法计算所得的高程异常模型进行框架约束，以削弱重力系统与高程和坐标系统间的系统差，实现系统转换，提高最终模型的精度。

Under the condition of reliable GPS / level data , boundary restriction to gravitational height anomaly model is made , which aims at weakening the system errors existing in the transform between gravity system and height system , achieving the system transform , improving precision of ultimate model .

对GPS测量实践中普遍存在的高程转换问题进行了分析，提出了GPS高程向我国实用高程系统转换的最小二乘预估法。

A new way of the least squares estimation is made in the model of altitude transformation on the ground of the GPS altitude measurements .