ICS33.060

CCSA50

中華人民共和國國家標準

GB/T45434.1—2025

中國標準時間第1部分：通則

Chinastandardtime—Part1：Generalprinciple

2025?03?28發(fā)布2025?03?28實施

國家市場監(jiān)督管理總局

國家標準化管理委員會發(fā)布

GB/T45434.1—2025

目次

前言··························································································································Ⅲ

引言··························································································································Ⅳ

1范圍·······················································································································1

2規(guī)范性引用文件········································································································1

3術(shù)語、定義和縮略語···································································································1

3.1術(shù)語和定義········································································································1

3.2縮略語··············································································································2

4概述·······················································································································2

5CST要求················································································································2

5.1產(chǎn)生流程···········································································································2

5.2資源要求···········································································································3

5.3性能要求···········································································································3

6中國標準時間物理時要求····························································································3

6.1系統(tǒng)要求···········································································································3

6.2資源要求···········································································································3

6.3性能要求···········································································································4

7比對鏈路要求···········································································································4

7.1一般要求···········································································································4

7.2性能要求···········································································································4

8信息發(fā)布要求···········································································································4

8.1綜合信息···········································································································4

8.2授時信息···········································································································4

9授時服務(wù)要求···········································································································4

9.1天基授時···········································································································4

9.2地基授時···········································································································4

附錄A（資料性）CST計算方法······················································································6

A.1數(shù)據(jù)資源···········································································································6

A.2技術(shù)方法···········································································································6

Ⅰ

GB/T45434.1—2025

前言

本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件是GB/T45434《中國標準時間》的第1部分。GB/T45434已經(jīng)發(fā)布了以下部分：

——第1部分：通則；

——第2部分：元數(shù)據(jù)；

——第3部分：公報。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔識別專利的責任。

本文件由中央軍委裝備發(fā)展部提出。

本文件由全國北斗衛(wèi)星導航標準化技術(shù)委員會（SAC/TC544）歸口。

本文件起草單位：中國計量科學研究院、中國衛(wèi)星導航工程中心、北京衛(wèi)星導航中心、北京無線電

計量測試研究所。

本文件主要起草人：方向、焦文海、王玉琢、張愛敏、史豐豐、張升康、王學運、劉瑩、徐清華、徐金鋒。

Ⅲ

GB/T45434.1—2025

引言

標準時間廣泛應(yīng)用于通信、交通、金融以及科學研究和國防建設(shè)等諸多方面，影響著人類生產(chǎn)生活

的方方面面，在現(xiàn)代社會中發(fā)揮著不可替代的作用。GB/T45434旨在明確中國標準時間產(chǎn)生、管理與

服務(wù)的準則。擬由七個部分構(gòu)成：

——第1部分：通則。目的在于確立適用于中國標準時間的產(chǎn)生、保持、比對、發(fā)布和授時服務(wù)的

基本要求。

——第2部分：元數(shù)據(jù)。目的在于確立適用于中國標準時間產(chǎn)生與發(fā)布涉及數(shù)據(jù)資源的內(nèi)容和格

式，定義元數(shù)據(jù)實體及元數(shù)據(jù)屬性。

——第3部分：公報。目的在于確立適用于中國標準時間公報編制的方法和要求。

——第4部分：基準鐘。目的在于確立適用于中國標準時間產(chǎn)生的基準鐘的報數(shù)、使用和評估等

相關(guān)要求。

——第5部分：比對鏈路。目的在于確立適用于中國標準時間產(chǎn)生的北斗/全球衛(wèi)星導航系統(tǒng)

（GNSS）、衛(wèi)星雙向和光纖時間頻率比對鏈路的使用、管理與維護等相關(guān)要求。

——第6部分：發(fā)播。目的在于確立適用于技術(shù)機構(gòu)發(fā)播中國標準時間信號的要求。

——第7部分：監(jiān)測。目的在于確立適用于技術(shù)機構(gòu)監(jiān)測中國標準時間信號的要求。

Ⅳ

GB/T45434.1—2025

中國標準時間第1部分：通則

1范圍

本文件規(guī)定了中國標準時間的產(chǎn)生、保持、比對、發(fā)布和授時服務(wù)要求。

本文件適用于中國標準時間的產(chǎn)生、管理與服務(wù)。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有修改單）適用于本

文件。

GB/T39267北斗衛(wèi)星導航術(shù)語

GB/T45434.3中國標準時間第3部分：公報

JJF1180時間頻率計量名詞術(shù)語及定義

3術(shù)語、定義和縮略語

3.1術(shù)語和定義

GB/T39267和JJF1180界定的以及下列術(shù)語和定義適用于本文件。

3.1.1

基準鐘primary/secondlyfrequencystandard

國際單位制秒或秒次級定義的復(fù)現(xiàn)裝置。

3.1.2

鐘組時標clockensembl