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GB/T 39472-2020 English PDF

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GB/T 39472-2020: Performance requirements and test methods for BeiDou navigation satellite system signal record and playback devices
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Basic data

Standard ID GB/T 39472-2020 (GB/T39472-2020)
Description (Translated English) Performance requirements and test methods for BeiDou navigation satellite system signal record and playback devices
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard V04
Classification of International Standard 49.020
Word Count Estimation 16,153
Date of Issue 2020-11-19
Date of Implementation 2021-03-01
Quoted Standard GB/T 39267-2020; JJF 1180-2007; JJF 1188-2008
Regulation (derived from) National Standard Announcement No. 26 of 2020
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration
Summary This standard specifies the functional requirements, performance requirements and test methods of the Beidou satellite navigation signal acquisition and playback instrument. This standard applies to the development, production and inspection of Beidou satellite navigation system signal acquisition and playback instrument (hereinafter referred to as "acquisition and playback instrument"). Other GNSS satellite navigation system signal acquisition and playback instruments can be used as reference.

GB/T 39472-2020: Performance requirements and test methods for BeiDou navigation satellite system signal record and playback devices


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Performance requirements and test methods for BeiDou navigation satellite system signal record and playback devices ICS 49.020 V04 National Standards of People's Republic of China Beidou satellite navigation system signal acquisition and playback instrument Performance requirements and test methods 2020-11-19 released 2021-03-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions, abbreviations 1 3.1 Terms and definitions 1 3.2 Abbreviations 2 4 Requirements 2 4.1 General 2 4.2 General requirements 2 4.3 Functional requirements 2 4.4 Performance requirements 3 5 Test method 4 5.1 Test item 4 5.2 Test environmental conditions 4 5.3 Test equipment requirements 4 5.4 General requirements test 5 5.5 Function test 6 5.6 Performance Test 6 Appendix A (informative appendix) Data processing method for positioning accuracy 12

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the Equipment Development Department of the Central Military Commission. This standard is under the jurisdiction of the National Beidou Satellite Navigation Standardization Technical Committee (SAC/TC544). Drafting organizations of this standard. Shanghai Jiaotong University, Beijing Oriental Institute of Metrology and Testing, Shanghai Institute of Metrology and Testing Technology, Shanghai Beidou Navigation Innovation Research Institute, Beijing Satellite Navigation Center. The main drafters of this standard. Chen Xin, Liu Ying, Xu Lili, Dong Lian, Yu Wenxian, Wang Liliang, Ming Dexiang, Feng Licheng, Zhang Wenjie, Jin Xiaoxi, Chen Qiang, Xu Bincheng, Zheng Xiaonan. Beidou satellite navigation system signal acquisition and playback instrument Performance requirements and test methods

1 Scope

This standard specifies the functional requirements, performance requirements and test methods of the Beidou satellite navigation signal acquisition and playback instrument. This standard applies to the development, production and inspection of Beidou satellite navigation system signal acquisition and playback instrument (hereinafter referred to as "acquisition and playback instrument"). Other GNSS satellite navigation system signal acquisition and playback instruments can be used as reference.

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 document. For undated reference documents, the latest version (including all amendments) applies to this document. GB/T 39267-2020 Beidou satellite navigation terminology JJF1180-2007 Time-frequency measurement terms and definitions JJF1188-2008 Radio measurement terms and definitions 3 Terms and definitions, abbreviations 3.1 Terms and definitions GB/T 39267-2020, JJF1180-2007 and JJF1188-2008 defined and the following terms and definitions apply to this file. 3.1.1 Acquisition and playback instrument Convert the radio frequency signal of the satellite navigation system into a digital signal for storage, and can convert the stored digital signal into a radio frequency analog Signal broadcasting equipment. 3.1.2 3dB bandwidth Taking the level of a given frequency as a reference, the difference between the high and low frequencies where the level drops 3dB on the frequency response curve. 3.1.3 Spurious free dynamic range When collecting the sine wave signal with the maximum input power, the relative level of the signal and the maximum harmonic clutter frequency component in the frequency domain of the playback signal. 3.1.4 C/N ratio playback consistency The carrier-to-noise ratio obtained by the GNSS multi-frequency receiver performing the satellite navigation signal playback test and the carrier noise obtained by the satellite navigation signal direct test The statistical value of the difference from the result. 3.1.5 Positioning playback consistency The positioning results obtained by the GNSS multi-frequency receiver in the satellite navigation signal playback test and the positioning results obtained by the direct test of the satellite navigation signal

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