GPS 精密单点定位（PPP）技术及其应用.pdf

发布时间：2022-06-13 发布人：admin 分类：说明书资料大小：3.06M 资料格式：pdf 举报版权申诉

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主要内容

一，技术发展背景

背景: GPS Satllites Modernization

背景 : GPS Signal Modernization

背景 : GLONASS Satellite Modernization

背景 : GLONASS Launch Program

背景 : GLONASS Frequency Plan

背景 : 我国的北斗双星系统

背景 :欧洲EGNOS系统

背景 :欧洲EGNOS系统的ESTB

背景 :欧洲Galileo系统

背景 : (趋势: 多卫星导航系统激烈竞争)

技术发展背景

IGS发展概述

精密单点定位概念及原理

精密单点定位中的误差处理

精密单点定位数学模型

精密单点定位关键技术

精密单点定位结果

精密单点定位结果分析

IGb00 Realization of ITRS

PPP技术应用：低轨卫星定轨

海洋测绘

PPP技术应用：定位

局域实时精密单点定位服务

系统组成

基于PANDA软件的全球性精密单点定位

谢谢！

精密单点定位（PPPPPP）） GPS GPS 精密单点定位（技术及其应用技术及其应用赵齐乐，叶世榕赵齐乐，叶世榕武汉大学GPSGPS工程技术研究中心工程技术研究中心武汉大学 2004年年1010月月1818日日 2004 GPS engineering research center, WuhanWuhan University University GPS engineering research center,

主要内容技术发展背景技术发展背景精密单点定位（精密单点定位（PPPPPP））概念及原理概念及原理 PPPPPP关键技术关键技术 PPPPPP应用及其未来发展应用及其未来发展 GPS engineering research center, WuhanWuhan University University GPS engineering research center,

一，技术发展背景卫星导航系统的发展卫星导航系统的发展当今主要的卫星导航系统:: 当今主要的卫星导航系统 GPSGPS卫星导航系统及其现代化卫星导航系统及其现代化 GLONASS导航系统及其发展规划 GLONASS 导航系统及其发展规划我国北斗双星系统我国北斗双星系统 EGNOS系统系统欧洲欧洲EGNOS Galileo系统系统欧洲欧洲Galileo GPS engineering research center, WuhanWuhan University University GPS engineering research center,

背景: GPS Satllites Modernization Increasing System Capabilities Increasing Defense/Civil Benefit Block IIA/IIR • Basic GPS • Std Service (36m/77m/40 ns horizontal/vertical/time) • Single frequency (L1) • Coarse acquisition (C/A) code navigation • Precise Service (3.7m/5.3m) • Two frequencies (L1 & L2) • P-code navigation Block III Evolutionary acquisition: • Increased anti-jam power (+20dB) • Increased accuracy (1.2m/4.8m) • Satellite Crosslinks • Controlled integrity • Backward compatibility • Increased security • Assured availability • System survivability Block IIR-M, IIF IIR-M: IIA/IIR capabilities plus • 2nd civil signal (L2C) • Earth coverage military code • Basic anti-jam power (+7dB) IIF: IIR-M capability plus • 3rd civil signal (L5) GPS engineering research center, WuhanWuhan University University GPS engineering research center,

背景 : GPS Signal Modernization Block IIRs (8 SV’s) • Adds L2C • Adds new military M-Code Signals in Space C code C code P(Y) code P(Y) code M code M code C/A code C/A code P(Y) code P(Y) code M code M code L2 1227.6 MHz L1 1575.42 MHz Block IIF (16 SVs) Adds civil L5 Signals in Space C code C code P(Y) code P(Y) code M code M code C/A code C/A code P(Y) code P(Y) code M code M code L5 L2 1176.45 MHz 1575.42 MHz • GPS III Architecture Studies underway to define capabilities GPS engineering research center, WuhanWuhan University University GPS engineering research center, • GPS III satellite launches to begin in 2012 timeframe 1227.6 MHz L1

背景 : GLONASS Satellite Modernization GLONASS 1982-2007 GLONASS-M 2003-2013 GLONASS-K 2007-2022 GLONASS-KM 2015-… Developer NPO PM Producer PO “Polyot” Total launched 79 SV Ordered 3 SV In orbit 10 SV Clock 3-5⋅10-13 Life-time 4.5 yrs Developer NPO PM Flight Test phase Ordered 3 SV In orbit 1 SV To be ordered 9 Clock 1⋅10-13 Life-time 7 years 2nd civil signal Developer NPO PM D&D phase To be ordered up to 27 SV Life-time more 10 ys 3rd civil signal Requirement definition since 2002 г. Ground control segment modernization Navigation (OD$TS) system modernization Integrity monitoring segment implementation System certification for safety of life applications Nuclear tests agreements monitoring Search and Rescue service implementation Supplementary functions (TBD) GPS engineering research center, WuhanWuhan University University GPS engineering research center,

背景 : GLONASS Launch Program GLONASS Deployment Program. History and Progress. Satellite in constellation GLONASS Initial Operation Capability (12 SV , 3 year life-time. Decree of the Prsident of 29.09.93 № 658 рпс). 14 12 12 12 16 12 10 9 26 22 Planned GLONASS deployment program according to the Federal Program 22 20 20 24 24 18 14 14 16 13 12 11 11 9 8 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 GLONASS-M Flight Test (7 years life-time) GLONASS-K Flight Test (10 years life-time) 30 27 24 21 18 15 12 9 6 3 0 由于克服了卫星的寿命短的难题，可在2010年以前实现24颗星座的部署 GPS engineering research center, WuhanWuhan University University GPS engineering research center,

背景 : GLONASS Frequency Plan before 2005: fk1=f01+k×Δf1 fk2=f02+k×Δf2 f01=1602 MHz; Δf1= 562,5 kHz f02=1246 MHz; Δf2= 437,5 kHz after 2005: GPS engineering research center, WuhanWuhan University University GPS engineering research center,

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GPS 精密单点定位（PPP）技术及其应用.pdf

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