QZSS接口控制文档（ICD）

【实例简介】
日本QZSS卫星概况与开发手册，内含QZSS现状与未来计划，QZSS卫星各频段信号特点
从 Is QZSS Ver. 1.45 I lapan aerospace exploration agency(All contents except Section 5.7.2.2.2 Quasi-Zenith satellite System project manager Geophysical Survey Institute(Section 5.7.2.2.2) Geodetic observation Center director 从 Is QZSS Ver. 1.45 I Japan aerospace Exploration agency ( All contents except Section5.2.2.2.5.2(6),5.4.3.1.2,5.4.3.5,5.7.2.1.3,5.7.2.2.2,5.7.2.2.3, 5.7.2.2.4) Satellite Applications and promotion Center Mission manager 从 Is QZSS Satellite positioning research and application Center ( Section5.4.3.1.2,5.4.3.5,5.7.2.1.3,5.7.2.2.3,5.7.2.2.4) Senior executive director 从 Is QZSS V National institute of Information and Communications technology ( Section5.22.2.5.2(6) Applied electromagnetic research Institute Space-Time standards laboratory Research manager IS-QZsS Ver, 1.45 Draft 从 Is-QZSS Ver. 1.45 Draft 1 SCOPE 2 APPLICABLE DOCUMENTS 3 OVERVIEW OF QZSS 3. 1 OVERVIEW OF QZSS 3455 3.1. 1 System Overview 3.1.2 Operation.,.,.,.,.,. ……13 3.1.3 Signals transmitted by qzs= 3. 1. 4 Time System and Coordinate System....,......,..... .26 3.2 INTERFACE WITH OTHER SYSTEMS 27 3.2. 1 QZsS Time System Relative to Other GNSS 32.2Q255 Coordinate system relative to Other GNss.…………28 4 QZSS COVERAGE AVAILABILITY AND PERFORMANCE 29 4.1 QZSS SERVICE AREA 29 4. 1. 1 Single qzs coverage area ,29 4.1.2 QZSS Coverage Area 4.1.3 Elevation Angle variation for Qzss Constellation 31 4.1.4 QZSS constellation availability 4.1.5 Target Regions for ionospheric Parameters Transmitted by qzs 32 4.1. 6Availability Improvement when qzss and Galileo are Combined with GPs 33 12 SERVICE AVAILABILITY……… 39 4.2.1 The fixed initial right ascension of ascending node depending on the launch time...3 9 4. 3 SYSTEM PERFORMANCE 42 4.3. 1 Availability 42 4.3 2Alert flag, Ura and health data 42 4.3.aCcuracy 5 QZSS SIGNAL PROPERTIES 45 5.1 QZS POWER LEVELS, BANDWIDTHS AND CENTER FREQUENCIES 45 51.1 Overview ofsignal properties,…,… · 6 5.1.2 Navigational messages. ∴53 5.2 LI C/A SIGNAL 5.2.1 R/ characteristics 52.2 Messages,,,…,… 57 5. 3 L1C SIGNAL …….71 531 RF Characteristics 71 5.3. mEssages 72 5. 4L1- SAIF SIGNAL 89 从 Is-QZSS Ver. 1. 45 Draft 5.4. 1 RF characteristics 9 5.4.2 rror Correction Code 5.4.3M 5.5 L2C SIGNAL ……112 55 1 RF characteristics 112 55.2Mes2ge.… 。击 112 5. 6 L5 SIGNA 127 5.. characteristics .127 5.6.2 Message................ ,,……127 5. 7 LEX SIGNAL 非垂非 ··· ∴143 5.7./ RP Signa/ Characteristics 14 5.72 LEXMessages .146 6 USER ALGORITHMS mmmmmmmmmmmmmmmmmmmmmmmmm171 6. 1 CONSTANTS 171 6.1.1 Speed of'light.… !了71 6. 1.2 Angular velocity of the Barth's rotation 171 61. 3 Barth's Gravitational constant ∴171 61. Circular constant 171 6.1.5 Semi-Circle 6.2 USER ALGORITHMS RELATING TO TIME SYSTEMS AND COORDINATE SYSTEMS 1171 6.2, 1 User algorithms relating to time systems ∴171 6.2.2 User Algorithms relating to Coordinate Systems.......... 172 6. 3 COMMON GNSS ALGORITHMS ·.. 173 6.3. lime Relationships........ ,,, 73 6.3. 2 User Algorithm for Sv Clock Ofset 万5 6.3. 3 ionospheric Delay Correction for Dual Frequency Users ∴176 63.4 Correction of Inter- Signal Group Delay error by l5 ers of on/v one signal.….……….179 6.3. 6 Calculation of' Satellite Orbit using Ephemeris Data 180 6.3.6 Calculation of satellite Orbit and sv Clock Offset using almanac Data 180 6.3.7 Calculation of Coordinated Universal lime(UTC)using the global standard time parameter…,…… 182 6.3.8 Correction of Ionospheric Delay Using ionospheric Parameters....,.,......182 6.3.9 Correction Using N/CT(L/C/A Signa)and DC Data(l,/C, L2C and 15 Signals).182 6.3. 10 User Algorithms Relating to Inter operability with Other Satellite Navigation Systems 83 6,L1 SAIF ALGORITHM 单垂···。垂·4 184 64,1 validity period( Time-out perioa1)…… 184 6.4. 2 Error Correction algorithm 1S4 64.3 Algorithm for Integrity information 191 从 Is-QZSS Ver. 1.45 Draft 6.1. 1 Calculation of Qzss satellite Position 193 6.5 LEX ALGORITHIM 94 65.1 Reed solomon Coding Decoding algorithm for LEX Navigation Message.…………….194 6. 6 OTHER INFORMATION 197 66. 1 Instrumental bias in receivers 197 7 PROVISION OF QZSS OPERATIONAL INFORMATION AND DATA VIA THE INTERNET 198 7. 1 QZSS WEBSITE FOR OPERATIONAL INFORMATION AND DATA....... 198 7.2 RELEASE OF QZSS INFORMATION AND DATA 198 7. 2. 1 NAQU (NOTICE ADVISORY TO QZSS USERS) 98 7.2. 2 Experimental schedule 19 7.2.3 Evaluation result for System Performances,.,........ 7.2. 4 User Operation Support Tool 7.2.5 Provision of Precise Orbit Clock for QZSS and GPS 200 7.2.6 Detailed Information for Precise Orbit Clock Estimation for research purposes.. 200 8 DIFFERENCES WITH GPS 201 8.1 DIFFERENCES IN NAVIGATION MESSAGES 201 8.1 1 Differences with GPs in terms ofLi C/A signal 201 8. 1.2 Differences with GPS in terms of CNAV message on /2C and L5 signals 203 8.1.3 Differences with GPS in terms of CNAv2 message on LiC signals ,205 8. 2 DIFFERENCE OF RF CHARACTERISTICS 207 8.2. 1 Difference of Modulated Diffusion Method of signal 207 8.2.2 Difference of' Signal Phase Relation of'LIC Signal ∴207 【实例截图】
【核心代码】