GB/T 39414.4-2020Interface specification for signal in space of BeiDou navigation satellite system—Part 4: Open service signal B3I (English PDF)
北斗卫星导航系统空间信号接口规范 第4部分：公开服务信号B3I
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 19, 2020
Implementation date
June 1, 2021
Scope
GB/T 39414.4-2020 is the English-translated version of 北斗卫星导航系统空间信号接口规范 第4部分：公开服务信号B3I.
GB/T 39414.4-2020 is the Chinese standard "Interface specification for signal in space of BeiDou navigation satellite system—Part 4: Open service signal B3I".
Its scope clause reads: This part of GB/T 39414 specifies the communication between the Beidou satellite navigation system (hereinafter referred to as the Beidou system) space constellation and the user terminal: The signal characteristics and navigation message structure of the service signal B3I: This part applies to the development, production and inspection of satellite navigation products using B3I signals:. Its clauses include terms and definitions, abbreviations.
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Document preview — GB/T 39414.4-2020
National Standard of the People's Republic of China
- ICS
- 49.020
- Classification
- V 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions, abbreviations
- 3:1 Terms and definitions
- 3:2 Abbreviations
- 4 Overview of Beidou system
- 4:1 Space Constellation
- 4:2 Coordinate System
- 4:3 Time System
- 5 Signal specification
- 5:1 Signal structure
- 5:2 Signal characteristics
- 5:3 Ranging code characteristics
- 6 Navigation message
- 6:1 Overview of navigation messages
- 6:2 D1 Navigation Message
- 6:3 D2 Navigation Message
- 7 Compliance verification method
- 7:1 Overview
- 7:2 Signal characteristics verification method
- 7:3 Verification method of ranging code characteristics
- 7:4 Verification method of navigation message structure
- 7:5 Verification method of navigation message parameter algorithm
1 Scope
This part of GB/T 39414 specifies the communication between the Beidou satellite navigation system (hereinafter referred to as the Beidou system) space constellation and the user terminal:
The signal characteristics and navigation message structure of the service signal B3I:
This part applies to the development, production and inspection of satellite navigation products using B3I signals:
2 Normative references
The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article
Pieces: For undated references, the latest version (including all amendments) applies to this document:
GB/T 39267 Beidou satellite navigation terminology
3 Terms and definitions, abbreviations
3:1 Terms and definitions
The terms and definitions defined in GB/T 39267 apply to this document:
3:2 Abbreviations
The following abbreviations apply to this document:
AODC: Clock data age (AgeofData, Clock)
AODE: Ephemeris data age (AgeofData, Ephemeris)
BDCS: BeiDou Coordinate System (BeiDou Coordinate System)
BDS: BeiDou Navigation Satellite System (BeiDouNavigationSateliteSystem)
BPSK: Binary Phase Shift Keying (BinaryPhaseShiftKeying)
CDMA: Code Division Multiple Access (CodeDivision Multiple Access)
CGCS2000:2000 China Geodetic Coordinate System (ChinaGeodeticCoordinateSystem2000)
GEO: Geostationary Earth Orbit (GeostationaryEarthOrbit)
GIVE: gridpoint ionospheric vertical delay correction error (GridpointIonosphericVerticaldelayError)
GIVEI: gridpoint ionospheric vertical delay correction error index (GridpointIonosphericVerticaldelayErrorIndex)
GLONASS: GLONASS Satellite Navigation System (GlobalNavigationSateliteSystem)
GPS: Global Positioning System (GlobalPositioningSystem)
IERS: International Earth Rotation Reference System Service (International Earth Rotation and Reference Systems Service)
IGP: Ionospheric GridPoint (IonosphericGridPoint)
IGSO: Inclined Geosynchronous Orbit (InclinedGeoSynchronousOrbit)
IPP: Ionospheric PiercePoint
IRM: IERS Reference Meridian (IERSReferenceMeridian) […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 45 pages — is available in the English PDF.
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Related Standards
GB/T 39414.1-2020 — Interface specification for signal in space of Beidou navigation satellite system—Part 1: Open service signal B1C
GB/T 39414.2-2020 — Interface specification for signal in space of BeiDou navigation satellite system—Part 2: Open service signal B2a
GB/T 39414.3-2020 — Interface specification for signal in space of BeiDou navigation satellite system—Part 3: Open service signal B1I
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GB/T 39414.4-2020
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