Basics of the GPs Technique: Observation Equations Geoffrey blewitt Department of Geomatics, University of Newcastle Newcastle upon Tyne NEl 7RU, United Kingdom

1.1 Point Positioning with Code ranges Epoch at t Additional Satellites(Simultaneously): L Code Range Observation Equatio

1. 1 Error Categories 1. Errors related to GPs Satellites 2. Errors related to GPS signal propagation

3. Reference Systems Book: p 25-38 Dr Guoqing Zhou 1.1 Overview 1.2 A Group of Basic Ce GPS Basic Positioning Principle

GPS Basic Positioning Principle Two reference systems: Time and Coordinate Syst

Fundamental knowledg Quick Overview Kelperian 3 Laws First Law: ellipse, Sun is a focus Second law: the same area in same time Earth

针对传统接触式尺寸测量方法的缺点,探讨利用数字图像处理技术进行几何尺寸测量的方法,为产品的尺寸测量提供实时、快速、有效、经济的测量途径.给出了利用数字图像处理技术进行非接触式尺寸测量的方法,它包括图像的预处理,二值化,图像分割,轮廓线条的提取、拟合、光滑,系统的标定,尺寸的计算等.并从理论和实践上证明该方法的可行性和正确性

2.6工程水平控制网优化设计概述 2.6.1控制网的质量指标

3.1概述 3.2信号的调理 3.3信号的数学运算 3.4本章小结

4.1概述 4.2信号的传输 4.3千扰 4.4本章小结