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GB/T 29842-2013: Temporal systems for satellite navigation and positioning
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GB/T 29842-2013: Temporal systems for satellite navigation and positioning

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Temporal systems for satellite navigation and positioning ICS 33.200 M50 National Standards of People's Republic of China Satellite navigation and positioning system system time Issued on. 2013-11-12 2014-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Terms and definitions 1 3 Acronyms 5 4 Time System 6 4.1 satellite navigation and positioning system system time 6 4.2 major international universal time scale 6 4.3 satellite navigation system in the time scale 8 5 different time source and measuring the time difference in terms of 8 5.1 Time Source 8 5.2 Time Count 9 5.3 Time Difference 9 Time difference measuring 5.4 9 Conversions between 6 and 9 major time scales and different satellite navigation system time 6.1 The main terms of time scales between 9 6.2 TAI, in terms of the system 10 UTC time different between the satellite navigation system 7 timing applications in major amendments 11 7.1 Basic Fixes 11 7.2 Fine amendment 11 7.3 pairs of accuracy is particularly required users afterwards amendment 11 Measurement of time under the Appendix A (normative) relativistic frame 12 Punctuality Systems Appendix B (normative) around the time the laboratory 14 Appendix C (Informative Appendix) GPS Timing principle and error analysis 16 Appendix D (Informative Appendix) GLONASS timing of principle 19 Annex E (informative) Beidou satellite navigation experimental system, method and timing system time 20 Annex F (informative) Precision Time delivery methods 22 Annex G (informative) Standard Time Application Method 27 References 29

Foreword

This standard is based on GB/T 1.1-2009 given rule drafting. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. The standard proposed by the Ministry of Industry and Information Technology of the People's Republic of China. The standard by the China Electronics Standardization Institute. This standard was drafted. Chinese Academy of Sciences National Time Service Center. The main drafters of this standard. Wang Zhengming, Wu Haitao. Satellite navigation and positioning system system time

1 Scope

This standard specifies the satellite navigation and positioning system time-related terms and definitions, labeling methods, and the system is built Li, the system time conversion methods and applications of the main technical methods. This standard applies to the use of satellite navigation and positioning system with time-dependent navigation, positioning, timing, time synchronization and other fields of scientific research, Teaching and application.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Evaluation of the time scale or time than the amount of technical performance characterization 2.1.1 Accuracy accuracy In line with the degree of measured value and its true value. Accuracy is generally the total value of the uncertainty of measurement to characterize. [ITU-RTF.862 \u200b\u200brecommendations] 2.1.2 Allan variance Alanvariance AVAR Allan deviation Alandeviation ADEV Normative short and long term frequency stability in the time domain or oscillator used to characterize the time scale, AVAR also known as "double sampling Variance ".AVAR is ADEV squared. [ITU-RTF.862 \u200b\u200brecommendations] 2.1.3 Fixed ADEV modifiedAlanvariance MVAR And Allan variance is basically the same, but it can clearly distinguish between white noise and phase modulation phase modulation oscillator flicker noise. [ITU-precision frequency and time on selected articles System Manual, 1997]. 2.1.4 Phase phase The measured value of the fractional part of a duplication of the period, which is measured relative to a recognizable feature of the phenomenon itself and into Row. Note. The time difference is a phase in the standard frequency and time signal service in the field of major concern, for example, two phases of the same phenomenon can be identified or not two The time difference between the phases of the same phenomenon. 2.1.5 Phase deviation phasedeviation With respect to a reference time signal phase. ...