大地控制网

阐述了D级GPS三维空间大地控制网的测量数据处理过程。

Data processing of the D-class GPS3D-space geodetic control network is explained .

2000国家GPS大地控制网的数据处理和精度评估

Data processing and accuracy analysis of national 2000 ' GPS geodetic control network

青海地区三级GPS大地控制网的建立

Establishing of the Third-Order GPS Geodetic Network in Qinghai Area

三级GPS大地控制网观测数据质量检测

Data Quality Assessment on the Third Order GPS Geodetic Network

它主要包括建立2000国家GPS大地控制网，2000国家重力基本网，以及前者与国家天文大地网的联合平差等，以实现国家3维地心坐标系统的坐标框架。

It consists of three parts which are establishment of 2000 National GPS Geodetic Network , its combination adjustment with national astro-geodetic network and 2000 National Gravity Fundamental network .

分析了原有大地控制网存在的问题和科研生产中对大地控制网的要求，阐述了采用GPS建立全省C级控制网的意义和作用。

The problems of the original geodetic networks and the requirements of the research and production are analysed , and the significance and role of the GPS-C networks are described in this paper .

另外，由于GPS观测量的粗差出现率也较常规大地控制网的粗差出现率高，若不采用有效措施，也会影响最后的平差结果。

At the same time , as known , because the ratio of gross errors in GPS baseline network are higher than normal controlling network , that will also influence the adjustment results .

为此，应对GPS2000网进行加密和改造，才能作为国家现代大地控制网。

As a result , the GPS2000 network must be encrypted and reformed in order to be used as National modern geodetic network .

国家2000GPS大地控制网加密方案的探讨

Discussion on point-densifying plan of national ' 2000 GPS geodetic network

电子地图支持下的大地控制网技术设计

Geodetic Network Technical Design in Support of Electronic Map

山西煤田区大地控制网建立的概况与精度

The General Situation and Precision on the Global Controling Net Building in Shanxi Coalfield

2000国家大地控制网的构建和它的技术进步

Establishment of 2000 National Geodetic Control Network of China and It 's Technological Progress

建立国家现代大地控制网的探讨

Discussion on National Modern Geodetic Network

概述了我国大地控制网、高程控制网和地球重力场等基础建设的基本情况、需求分析与任务建议。

This paper outlines the basic situations , requirements and proposes tasks of the national geodetic infrastructure .

2000国家大地控制网是国家大地测量的重大科学工程项目。

2000 ' National Geodetic Control Network of China is an important fundamental scientific engineering project in China .

许多国家应用GPS定位技术建立了区域性和全国性的GPS大地测量控制网，我国也建立了高精度的全国GPS控制网。

Many countries have established national and regional GPS geodetic control network by using of GPS technology . China has also established a high-precision GPS control network of the country .

引入协同设计的概念，提出了基于网络进行大地测量控制网协同设计的思想。

The concept of collaboration design is introduced . And the idea of geodetic network collaboration design based on computer network technology is given .

依据相关分期平差原理，采用带权位置约束的Px平差方法，初步解决了大地或工程控制网加密或扩建中存在的一系列问题。

Px adjustment with weighted position constraint is applied to solving a series of problems in the bridging and extension of geodesic engineering survey control network .

文章回顾了大地测量仪器的发展历程，指出了大地控制网的现状和缺陷，介绍了GPS的发展历史和特点以及GPS的应用范围。

This paper reviews the developing course of geodetic instruments , points out current situations and shortcomings of the geodetic control net , introduces the developing history , characteristics and application ranges of GPS .

综观各国的大地测量动向可以看出，高精度国家大地控制网的建立，都是采用GPS，无一例外，而且它们之间只是细节上的差异。

A comprehensive review of these activities shows that the establishment of national high accuracy geodetic networks is all made by means of GPS without exception , they exhibit only slight difference in details .

月球大地测量是月球探测的主要任务之一，本文主要对月面大地控制网的建立理论以及月球投影的理论和方法进行研究。

In this paper , the theories of lunar control network foundation and lunar map projection are studied .