GPS测量与数据处理第五章GPS测量中的数据格式.ppt

1,GPS测量与数据处理（本科生适用）,武汉大学测绘学院空间定位与导航工程研究所,2,联系信息,办公室：测绘学院4楼419室电话：027-68758505(office)Email：Ehwei,2,3,理论课时：32节实验课时：4节课程性质：专业必修学分：2所用教材：李征航，黄劲松编著，GPS测量与数据处理（第二版），武汉大学出版社，2010课程网站：,3,课程设置,4,第五章GPS测量中的数据格式,5,GPS测量中的数据格式,5.1RINEX格式5.2SP3精密星历数据格式,6,第一节RINEX格式,7,概述,本机格式（NativeFormat）定义接收机内部存储数据的格式存储方式二进制内容观测值广播星历电离层信息气象元素,8,概述,本机格式（NativeFormat）（续）特点不同厂家接收机的本机格式各不相同与接收机配套的数据处理软件（随机软件/商用软件）一般可以直接读取自身本机格式的数据，而不能读取其它厂家本机格式的数据数据存储紧凑，含有一些专有信息不利于多种型号的接收机联合作业,9,概述,RINEX格式定义与接收机无关的数据交换格式/ReceiverINdependentExchange历史1989年由AstronomicalInstitute，UniversityofBerne的WernerGurtner提出了第一个版本，当时的目的是处理EUREF89数据，现在最新的为3.01版存储方式ASCII/文本文件,10,概述,RINEX格式（续）内容观测值星历（导航信息）气象数据钟数据特点通用性强，已成为事实上的标准利于多种型号的接收机联合作业大多数软件能够处理,11,文件类型,观测数据文件：GPS观测值导航电文文件：GPS卫星导航电文气象数据文件：在测站处所测定的气象数据GLONASS导航电文文件：GLONASS卫星导航电文GEO导航电文文件：增强系统中搭载有类GPS信号发生器的地球同步卫星（GEO）的导航电文卫星和接收机钟文件：卫星和接收机时钟信息的,12,命名规则,命名方法：8+3文件名命名规则例：wh022931.02o，wh022293.02n,13,文件结构,组织形式按节、记录（行）、字段和列所有文件均分为两节：文件头和数据记录每个记录占一行，不超过80列宽文件头中每个记录的第6180列为标签，说明记录内容,14,文件结构,观测值文件结构,15,文件结构,GPS导航电文文件结构,16,文件结构,气象数据文件结构,17,文件格式说明,格式说明符,18,文件格式说明,RINEX观测值文件的内容,2.10OBSERVATIONDATAM(MIXED)RINEXVERSION/TYPEBLANKORG=GPS,R=GLONASS,T=TRANSIT,M=MIXEDCOMMENTXXRINEXOV9.9AIUB24-MAR-0114:43PGM/RUNBY/DATEEXAMPLEOFAMIXEDRINEXFILECOMMENTA9080MARKERNAME9080.1.34MARKERNUMBERBILLSMITHABCINSTITUTEOBSERVER/AGENCYX1234A123XXZZZREC#/TYPE/VERS234YYANT#/TYPE4375274.587466.4589095.APPROXPOSITIONXYZ.9030.0000.0000ANTENNA:DELTAH/E/N11WAVELENGTHFACTL1/2126G14G15G16G17G18G19WAVELENGTHFACTL1/20RCVCLOCKOFFSAPPL4P1L1L2P2#/TYPESOFOBSERV18.000INTERVAL2001324131036.0000000TIMEOFFIRSTOBSENDOFHEADER01324131036.000000003G12G9G6-.12345678923629347.915.3008-.35323629364.15820891534.648-.1209-.35820891541.29220607600.189-.4309.39420607605.84801324131050.000000044122G9G12WAVELENGTHFACTL1/2*WAVELENGTHFACTORCHANGEDFOR2SATELLITES*COMMENTNOW8SATELLITESHAVEWLFACT1AND2!COMMENTCOMMENT01324131054.000000005G12G9G6R21R22-.12345678923619095.450-53875.6328-41981.37523619112.00820886075.667-28688.0279-22354.53520886082.10120611072.68918247.789914219.77020611078.41021345678.57612345.567522123456.78923456.7895,文件头,文件体,19,文件格式说明,RINEX星历文件的内容,2.10N:GPSNAVDATARINEXVERSION/TYPEXXRINEXNV2.10AIUB3-SEP-9915:22PGM/RUNBY/DATEEXAMPLEOFVERSION2.10FORMATCOMMENT.1676D-07.2235D-07-.1192D-06-.1192D-06IONALPHA.1208D+06.1310D+06-.1310D+06-.1966D+06IONBETA.133179128170D-06.107469588780D-125529601025DELTA-UTC:A0,A1,T,W13LEAPSECONDSENDOFHEADER69992175144.0-.839701388031D-03-.165982783074D-10.000000000000D+00.910000000000D+02.934062500000D+02.116040547840D-08.162092304801D+00.484101474285D-05.626740418375D-02.652112066746D-05.515365489006D+04.409904000000D+06-.242143869400D-07.329237003460D+00-.596046447754D-07.111541663136D+01.326593750000D+03.206958726335D+01-.638312302555D-08.307155651409D-09.000000000000D+00.102500000000D+04.000000000000D+00.000000000000D+00.000000000000D+00.000000000000D+00.910000000000D+02.406800000000D+06.000000000000D+001399921900.0.490025617182D-03.204636307899D-11.000000000000D+00.133000000000D+03-.963125000000D+02.146970407622D-08.292961152146D+01-.498816370964D-05.200239347760D-02.928156077862D-05.515328476143D+04.414000000000D+06-.279396772385D-07.243031939942D+01-.558793544769D-07.110192796930D+01.271187500000D+03-.232757915425D+01-.619632953057D-08-.785747015231D-11.000000000000D+00.102500000000D+04.000000000000D+00.000000000000D+00.000000000000D+00.000000000000D+00.389000000000D+03.410400000000D+06.000000000000D+00,文件头,文件体,20,文件格式说明,RINEX气象数据文件的内容,2.10METEOROLOGICALDATARINEXVERSION/TYPEXXRINEXMV9.9AIUB3-APR-9600:10PGM/RUNBY/DATEEXAMPLEOFAMETDATAFILECOMMENTA9080MARKERNAME3PRTDHR#/TYPESOFOBSERVPAROSCIENTIFIC740-16B0.2PRSENSORMOD/TYPE/ACCHAENNI0.1TDSENSORMOD/TYPE/ACCROTRONICI-240W5.0HRSENSORMOD/TYPE/ACC0.00.00.01234.5678PRSENSORPOSXYZ/HENDOFHEADER96410015987.110.689.596410030987.210.990.096410045987.111.689.0,文件头,文件体,21,第二节SP3精密星历数据格式,22,概述,定义StandardProduct#3一种精密星历格式，IGS精密星历采用此格式历史1985年美国NGS（NationalGeodeticSurvey）公布SP1、ECF1、SP2、ECF21989年加入EF13以上格式均未考虑卫星钟信息1989年提出SP3、ECF3和EF18，1991年正式发布,23,概述,存储方式ASCII内容精密星历（每隔15分钟给出1个卫星的位置、钟差（P型），有时还给出卫星的速度、钟漂（V型）特点提供精密星历,24,命名规则,命名方法：8+3文件名命名规则例：igs11065.sp3(.Z)，igr11065.sp3(.Z),25,文件结构,组织形式按节、记录（行）、字段和列所有文件均分为两节文件头：前22行数据记录：22行之后每个记录占一行，不超过60列宽,26,文件格式说明,内容,#aP2001318000.0000000096ORBITIGS97HLMIGS#11060.00000000900.00000000519860.0000000000000+281234567891011131417181920+2122232425262728293031000000+00000000000000000+00000000000000000+00000000000000000+45554554545555554+55544447544000000+00000000000000000+00000000000000000+00000000000000000%ccccccccccccccccccccccccccccccccccccccccccccccc%ccccccccccccccccccccccccccccccccccccccccccccccc%f0.00000000.0000000000.000000000000.000000000000000%f0.00000000.0000000000.000000000000.000000000000000%i000000000%i000000000/*RAPIDORBITCOMBINATIONFROMWEIGHTEDAVERAGEOF:/*codemresagfzigujplngssiousn/*REFERENCEDTOGPSCLOCKANDTOWEIGHTEDMEANPOLE:/*CLKANTZ-OFFSET(M):II/IIA1.023;IIR0.000*2001318000.00000000P11137.66233324450.41993510434.025839168.957503P222554.1648466701.404774-12156.548088-354.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