点击切换搜索课件文库搜索结果(333)
文档格式:PPT 文档大小:2.59MB 文档页数:56
一、M:数字高程模型DEM( Digital Elevation Model); 二、DTM:数字地形模型(Digital Terrain 三、DEM表达方法:包括网格、等高线、三角网等,并可相互转换
文档格式:PDF 文档大小:741.62KB 文档页数:4
This is a Geodetic Control Test Field located at L Radial Surveying( Cartwheel): Madison County, Central Ohio. lial Surveys: one receiver at a fixed 2 Madison County High Altitude Test Range site, and measuring lines from this fixed
文档格式:PDF 文档大小:587.76KB 文档页数:9
Perigee and Apogee: The point of closest approach of the satellite with respect to the earth's center of mass is called perigee and the most distant position is the apogee. Nodes: The intersection between the equatorial and the nit sphere is termed the nodes, where the ascending node defines the northward
文档格式:PDF 文档大小:599.28KB 文档页数:6
1.1 Physical Fundamentals This attenuation is usually expressed in decibels (dB). By definition, an attenuation of n dB means signal propagation from the that the original field strength is decreased by ite to the user by means of factor of 10-0In electromagnetic waves. Such waves Physical quantities
文档格式:PDF 文档大小:2.07MB 文档页数:42
一、单基线平差模型 二、模型简单、易于编程实现 三、基线之间相关性被忽略 四、不易发现粗差
文档格式:PDF 文档大小:721.27KB 文档页数:15
Outline Review u Examined basics of GPS signal structure and how gnal is tracked a Looked at methods used to acquire satellites and start g Today we look at
文档格式:PDF 文档大小:1.03MB 文档页数:7
1. Basic Knowledge of GPS In 1973, DOd organized a Joint P Office (JPO) located at the U.S. Air Force Systems Command's Space The s Second Lecture Division, Los Angeles Air Force Base(AFB)to what?
文档格式:PDF 文档大小:848.87KB 文档页数:16
1. Errors related to GPs Satellites 2. Errors related to GPS signal propagation in atmosphere 3. Error related to gPs receivers Gv Principles of the Global Positioning System
文档格式:PDF 文档大小:1.21MB 文档页数:23
一、目标:介绍GPS卫星测量基本原理及其应用 二、PPT课件采用中英文结合方式 三、在学习制定教材的基础上,依据学生的兴趣和个人能力,学习内容和形式多样
文档格式:PDF 文档大小:1.6MB 文档页数:32
前面介绍了有关GPS定位的基本概念和原理,本 章将介绍目前GPS测量实施的主要过程,作业的 基本方法和原则。 由于GPS测量工作的实施方法与用户的要求,和 所用接收系统硬件与软件的发展水平密切相关, 所以,关于GPS测量工作的作业细节
首页上页1819202122232425下页末页
热门关键字
搜索一下,找到相关课件或文库资源 333 个  
©2008-现在 cucdc.com 高等教育资讯网 版权所有