GB/T 44175.1-2024全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)(iGMAS)實(shí)時(shí)服務(wù)第1部分：數(shù)據(jù)流格式

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標(biāo)準(zhǔn)解讀

《GB/T 44175.1-2024全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)(iGMAS)實(shí)時(shí)服務(wù) 第1部分：數(shù)據(jù)流格式》這一標(biāo)準(zhǔn)文件，主要規(guī)定了全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)(iGMAS)在提供實(shí)時(shí)服務(wù)時(shí)，數(shù)據(jù)傳輸與交換的具體格式要求。iGMAS作為一個(gè)全球性的監(jiān)測(cè)網(wǎng)絡(luò)，其目標(biāo)在于實(shí)現(xiàn)對(duì)地球空間環(huán)境的連續(xù)觀測(cè)和評(píng)估，為各種應(yīng)用領(lǐng)域如導(dǎo)航定位、氣象預(yù)報(bào)、地質(zhì)災(zāi)害預(yù)警等提供精確及時(shí)的數(shù)據(jù)支持。

該標(biāo)準(zhǔn)詳細(xì)闡述了以下幾個(gè)關(guān)鍵方面：

數(shù)據(jù)結(jié)構(gòu)定義：明確了數(shù)據(jù)包的構(gòu)成要素，包括但不限于數(shù)據(jù)頭、數(shù)據(jù)體以及可能存在的校驗(yàn)信息等，確保數(shù)據(jù)在傳輸過程中的完整性和正確性。每個(gè)部分的具體內(nèi)容、編碼規(guī)則及長(zhǎng)度限制都有詳細(xì)說明，便于接收端正確解析。
實(shí)時(shí)服務(wù)數(shù)據(jù)類型：規(guī)范了iGMAS系統(tǒng)提供的各類實(shí)時(shí)數(shù)據(jù)類型，比如衛(wèi)星軌道參數(shù)、時(shí)間同步信號(hào)、空間環(huán)境監(jiān)測(cè)數(shù)據(jù)（如電離層狀態(tài)、地磁活動(dòng)等）。對(duì)于每種數(shù)據(jù)類型，標(biāo)準(zhǔn)都規(guī)定了其特有的數(shù)據(jù)格式和表示方法。
傳輸協(xié)議與接口規(guī)范：指定了數(shù)據(jù)傳輸所遵循的通信協(xié)議（如TCP/IP）以及數(shù)據(jù)交互的接口標(biāo)準(zhǔn)，確保不同系統(tǒng)間的數(shù)據(jù)能夠順暢對(duì)接和互操作。
實(shí)時(shí)性要求：針對(duì)實(shí)時(shí)服務(wù)特性，設(shè)定了數(shù)據(jù)生成到送達(dá)用戶端的時(shí)間延遲上限，保證數(shù)據(jù)的時(shí)效性滿足應(yīng)用需求。
錯(cuò)誤處理與恢復(fù)機(jī)制：描述了數(shù)據(jù)傳輸過程中可能出現(xiàn)的錯(cuò)誤類型及其處理方式，包括數(shù)據(jù)包丟失、損壞時(shí)的重傳機(jī)制，確保服務(wù)的穩(wěn)定性和可靠性。
安全與隱私保護(hù)：雖然未直接提及，但隱含要求數(shù)據(jù)傳輸應(yīng)遵循相關(guān)的安全標(biāo)準(zhǔn)和加密措施，保護(hù)數(shù)據(jù)在傳輸過程中的安全性和用戶的隱私信息。

如需獲取更多詳盡信息，請(qǐng)直接參考下方經(jīng)官方授權(quán)發(fā)布的權(quán)威標(biāo)準(zhǔn)文檔。

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GB/T 44175.1-2024全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)(iGMAS)實(shí)時(shí)服務(wù)第1部分：數(shù)據(jù)流格式_第1頁

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文檔簡(jiǎn)介

ICS

49.020

CCS

V04

中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)

GB/T44175.1—2024

全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)（iGMAS）

實(shí)時(shí)服務(wù)第1部分:數(shù)據(jù)流格式

Real-timeserviceofinternationalGNSSmonitoringandassessmentsystem

(iGMAS)—Part1:Datastreamformat

2024-07-24發(fā)布2024-07-24實(shí)施

國(guó)家市場(chǎng)監(jiān)督管理總局發(fā)布

國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)

GB/T44175.1—2024

前言

·····································································································

Ⅲ

引言

Ⅳ

范圍

··································································································

規(guī)范性引用文件

······················································································

術(shù)語、定義和縮略語

·················································································

3.1

術(shù)語和定義

······················································································

3.2

縮略語

···························································································

總則

··································································································

4.1

信息類型

·························································································

4.2

信息結(jié)構(gòu)

·························································································

4.3

數(shù)據(jù)字段

·························································································

系統(tǒng)參數(shù)信息格式

····················································································

天線參考點(diǎn)信息格式

·················································································

接收機(jī)和天線信息格式

···············································································

GNSS觀測(cè)數(shù)據(jù)信息格式

·············································································

GNSS導(dǎo)航數(shù)據(jù)信息格式

·············································································

9.1

BDS導(dǎo)航數(shù)據(jù)信息

···············································································

9.2

GPS導(dǎo)航數(shù)據(jù)信息

··············································································

9.3

GLONASS導(dǎo)航數(shù)據(jù)信息

·······································································

9.4

Galileo導(dǎo)航數(shù)據(jù)信息

···········································································

GNSS電離層參數(shù)信息格式

········································································

10.1

BDS電離層參數(shù)信息

··········································································

10.2

GPS電離層參數(shù)信息

··········································································

10.3

Galileo電離層參數(shù)信息

········································································

BDS?2完好性及差分信息格式

·····································································

氣象數(shù)據(jù)信息格式

·················································································

時(shí)差測(cè)量數(shù)據(jù)信息格式

·············································································

GNSS健康狀態(tài)信息格式

··········································································

14.1

通用格式

······················································································

14.2

BDS健康狀態(tài)信息

············································································

14.3

GPS健康狀態(tài)信息

············································································

14.4

GLONASS健康狀態(tài)信息

······································································

14.5

Galileo健康狀態(tài)信息

··········································································

附錄A（規(guī)范性）

RTCMSTANDARD10403.3?2022規(guī)定的格式

································

Ⅰ

GB/T44175.1—2024

A.1

數(shù)據(jù)流數(shù)據(jù)字段

················································································

A.2

數(shù)據(jù)類型

·······················································································

A.3

系統(tǒng)參數(shù)信息格式

·············································································

A.4

天線參考點(diǎn)信息格式

···········································································

A.5

接收機(jī)和天線信息格式

········································································

A.6

GNSS觀測(cè)數(shù)據(jù)信息格式

······································································

A.7

GNSS導(dǎo)航數(shù)據(jù)信息格式

······································································

附錄B（規(guī)范性）

CRC?24Q校驗(yàn)算法

······························································

參考文獻(xiàn)

·······························································································

Ⅱ

GB/T44175.1—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)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/T44175《全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)（iGMAS）實(shí)時(shí)服務(wù)》的第1部分。GB/T44175已經(jīng)發(fā)

布了以下部分：

—第1部分：數(shù)據(jù)流格式；

—第2部分：產(chǎn)品格式。

請(qǐng)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(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。

本文件由中央軍委裝備發(fā)展部提出。

本文件由全國(guó)北斗衛(wèi)星導(dǎo)航標(biāo)準(zhǔn)化技術(shù)委員會(huì)（SAC/TC544）歸口。

本文件起草單位：中國(guó)航天時(shí)代電子有限公司、中國(guó)衛(wèi)星導(dǎo)航工程中心、中國(guó)地震局地震預(yù)測(cè)研究

所、武漢大學(xué)、中國(guó)科學(xué)院國(guó)家授時(shí)中心、中國(guó)人民解放軍國(guó)防科技大學(xué)、中國(guó)電科網(wǎng)絡(luò)通信研究院。

本文件主要起草人：陳海龍、李冬、焦文海、劉瑩、王凱、孫漢榮、蘇牡丹、蔡洪亮、劉暉、

周巍、胡志剛、張喆、余意、秦明峰、張建偉。

Ⅲ

GB/T44175.1—2024

引言

全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)（iGMAS）實(shí)時(shí)服務(wù)是全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)的特色服務(wù)之一。其主要應(yīng)用

價(jià)值在于GNSS用戶能夠通過實(shí)時(shí)服務(wù)開展高精度實(shí)時(shí)定位應(yīng)用。為了滿足全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)實(shí)時(shí)

數(shù)據(jù)和精密定位服務(wù)改正數(shù)的交換和處理需求，制定GB/T44175《全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)

（iGMAS）實(shí)時(shí)服務(wù)》，擬由兩個(gè)部分構(gòu)成。

—第1部分：數(shù)據(jù)流格式。目的在于規(guī)定全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)向GNSS用戶提供實(shí)時(shí)數(shù)據(jù)流的

格式。

—第2部分：產(chǎn)品格式。目的在于規(guī)定全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)向GNSS用戶提供實(shí)時(shí)產(chǎn)品的格式。

Ⅳ

GB/T44175.1—2024

全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)（iGMAS）

實(shí)時(shí)服務(wù)第1部分:數(shù)據(jù)流格式

1范圍

本文件規(guī)定了全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)實(shí)時(shí)服務(wù)數(shù)據(jù)流的信息類型、信息結(jié)構(gòu)、數(shù)據(jù)字段和信息

格式。

本文件適用于全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)跟蹤站觀測(cè)數(shù)據(jù)數(shù)據(jù)流的采集、存儲(chǔ)、處理和交換等工作，也

適用于GNSS測(cè)量接收機(jī)的研制、生產(chǎn)、測(cè)試及GNSS觀測(cè)實(shí)時(shí)數(shù)據(jù)流的使用。

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(duì)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（包含所有的修改單）適用

于本文件。

GB/T27606—2020GNSS接收機(jī)數(shù)據(jù)自主交換格式

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GB/T 44175.1-2024全球連續(xù)監(jiān)測(cè)評(píng)估系統(tǒng)(iGMAS)實(shí)時(shí)服務(wù)第1部分：數(shù)據(jù)流格式

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