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 In the first section,this paper studies the formula for arranging gravity points.It is the relational expression between mean square error of mean spatial(Bouguer) gravity abnormal and gravity point number which can be used to calculate the gravity point number which should be guaranteed within the grid.In the second section,1) this paper offers the methods and steps of calculating the coefficients of representation error referring to the definition of representation error and relevant formula due to its important... In the first section,this paper studies the formula for arranging gravity points.It is the relational expression between mean square error of mean spatial(Bouguer) gravity abnormal and gravity point number which can be used to calculate the gravity point number which should be guaranteed within the grid.In the second section,1) this paper offers the methods and steps of calculating the coefficients of representation error referring to the definition of representation error and relevant formula due to its important role in arranging points design of gravity surveying;2) using possessed gravitational and topographical data,the authors calculates the coefficients of representation error in the regions that have different topographical classifications;3) the paper lists the statistical results of the coefficients of representation error of spatial (Bouguer) gravity abnormal within area covering different topographical classifications;4) the authors checks the coefficients of representation error of our country's current specification,and analyzes the statistical data.The result shows that these coefficients are reliable and should be used continually.In the third section,1) since the Mean Square Error of mean topographical heights plays an important role,this paper studies and offers its estimating methods and steps;2) this paper calculates the Mean Square Error of mean topographical height within area gained from grid_point heights all over the country,and lists relevant data according to different topographical classifications,and the result shows that the calculated Mean Square Error can not conform to the standardless than ±10 m in mountains area and needs to be further refined;3) this paper analyzes the precision of the topographical data of the map database,and the result shows that Mean Square Error calculated from mean height within area gained from topographical data of future map database,will reach ±3 m in mountains area.In the last section,1) this paper studies and states the methods and steps of establishing “land gravity surveying system for arranging the gravity points";2) the paper offers the program of arranging points defined according to the research results of this paper in mean gravity surveying of our country;3) this paper offers the methods and steps of applying “land gravity surveying system for arranging the gravity points",from which we know that the system possesses practical value;4) offers the concrete methods and steps defining the gravity points which should be supplemented within each area all over the country,by which we define the gravity points number which should be supplemented within each area;(5) this paper lists the test results of “land gravity surveying system for arranging the gravity points" which shows that the system possesses abundant contents and powerful function,and can offer reliable guarantee for arranging points design and decision_making inquiry,etc.  推导了重力布点公式 ,应用全国重力点检验了原有代表误差系数的可靠性 ,估计了我国目前和将来5′× 5′平均高的精度 ,阐述了陆地重力测量布点系统的建立方法和应用方法 ,给出了我国陆地重力点补测方案 ,应用它即可确定我国陆地每个 5′× 5′内应补测的重力点数及其分布  Field gravity survey was an important method of gravity field model optimization.At present,local gravity filed and geoid were not exact enough for national defence and construction.This paper introduced the design and software construction for arranging gravity points of gravity survey and terrain matching visualization system based on the 1∶50 000 digital elevation database.In 3D terrain visualization environment,the system advanced work efficiency of gravity survey especially for arranging gravity points.  野外重力测量是精化全球和局部重力场模型的重要手段之一。以我国1∶5万数字高程数据库为基础,结合地形景观生成技术,构建了野外地形匹配可视化及重力测量的自动布点系统。在重力测量布点方案的设计中,给于用户施测区域所属地形及布点点位以直观的认知形式。尤其对于地形较为复杂的山区、特大山区,可对外业测量点位进行优化,减少外业的工作量,提高重力测量的外业工作效率。  Land gravity precision technology was the key instrument to make earth gravity field precise and ensure its application.This paper introduced the design and the basic function of land gravity precision technology software and analyzed and expounded the key technique of each part.The software was composed of three parts,including gravity field data processing,data applying and analyzing,data visualizing.The software realized the management of gravity observation data,provided automated processing of gravity field... Land gravity precision technology was the key instrument to make earth gravity field precise and ensure its application.This paper introduced the design and the basic function of land gravity precision technology software and analyzed and expounded the key technique of each part.The software was composed of three parts,including gravity field data processing,data applying and analyzing,data visualizing.The software realized the management of gravity observation data,provided automated processing of gravity field data and simulation of field gravimetric survey laying station as well as graphics visualization of gravity field information.  陆地重力精化技术是精确重力场信息、提供重力场应用保障的关键技术手段。介绍了陆地重力精化技术软件平台的设计思想和主要功能并对各部分涉及的关键技术进行了分析与阐述。软件平台由重力场数据处理、重力场数据应用与分析以及重力场数据可视化3部分组成。实现了重力观测数据的数据库管理,重力场数据处理的自动化,野外重力测量布点仿真和重力场信息的图形可视化等功能。  
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