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GB/T 44434-2024Space environment—Technical requirements for meteor radar (English PDF)

空间环境流星雷达技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 29, 2024

Implementation date

September 29, 2024

Scope

GB/T 44434-2024 is the English-translated version of 空间环境流星雷达技术要求.

GB/T 44434-2024 is the Chinese national standard covering the 25 MHz to 65 MHz radar that reads the wind between 70 km and 110 km from the ionised trails meteors leave — the transmitting and receiving antennas, the feeder, transmitter, receiver, data processing terminal and power supply, the environmental adaptability, reliability, electromagnetic compatibility and safety, the installation, and the layout of single-station and distributed arrays, which decides whether a wind vector can be resolved at all. First edition, under the Chinese Academy of Sciences. In force from 29 September 2024. Issued on 29 September 2024, it has been in force since 29 September 2024.

Document preview — GB/T 44434-2024

National Standard of the People's Republic of China

ICS: 33.200
Classification: M 54

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface... III 1 Scope1
2 Normative references1
3 Terms and Definitions1
4 Meteor Radar1
4.1 Overview1
4.2 Classification2
4.3 Composition2
5 General requirements2
5.1 Size, color, marking, appearance and completeness2
5.2 Man﹘Machine﹘Environment System Engineering Requirements3
6 Main technical requirements3
6.1 General Requirements3
6.2 Transmitting Antenna4
6.3 Receiving Antenna4
6.4 Feeder4
6.5 Transmitter5
6.6 Receiver6
6.7 Data Processing and Display and Control Terminal7
6.8 Power Supply8
7 Quality Assurance Requirements8
7.1 Environmental adaptability8
7.2 Reliability and Maintainability9
7.3 Electromagnetic compatibility9
7.4 Security Requirements9
7.5 Interchangeability10
8 Installation Requirements10
9 Deployment Requirements10
9.1 Single-station meteor radar10
9.2 Distributed Meteor Radar10
Appendix A (Informative) Schematic diagram of meteor radar detection11
Appendix B (Informative) Example of Meteor Radar Horizontal Wind Detection Data13
Appendix C (Informative) Meteor Radar Receiving Antenna Array Configuration15
References16

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the Chinese Academy of Sciences.

This document is under the jurisdiction of the National Technical Committee on Aerospace Technology and Its Applications Standardization (SAC/TC 425).

This document was drafted by: National Space Science Center of the Chinese Academy of Sciences, China Institute of Radio Wave Propagation, Wuhan University, Chinese Academy of Sciences Institute of Geophysics, University of Science and Technology of China, Xidian University.

The main drafters of this document are: Xu Qingchen, Feng Jian, Gong Yun, He Maosheng, Liang Xianfeng, Yan Zhaoai, Yan Chunxiao, Chen Gang, Hu Lianhuan, Yi Wen, Li Xue, Xu Na, Zhang Pengfei, Li Ping, Li Changhong, Ma Zheng.

Technical requirements for space environment meteor radar

1 Scope

This document specifies the general requirements, main technical requirements, quality assurance requirements, installation requirements and layout requirements of Meteor Radar.

This document is applicable to meteor distribution surveys that operate in the 25 MHz to 65 MHz frequency band and use meteor trails as the main tracer.

and meteor radar for neutral atmospheric wind detection.

2 Normative references

GB/T 12506-2017

GB/T 12648-1990

GB/T 12649-2017

GB/T 30114.1

3 Terms and definitions

The following terms and definitions as defined in GB/T 12506-2017, GB/T 12649-2017 and GB/T 30114.1 apply to this document.

3.1 meteor trail

When a meteoroid enters the atmosphere at high speed, it rubs against the surrounding atmosphere, causing the material on the surface of the meteoroid to evaporate and ionize.

Due to the violent collision with the meteoroid, it is ionized and diffused to form a plasma gas column centered on the meteor track.

3.2 meteor radar

A radar device that uses the scattering effect of meteor trails on electromagnetic waves to detect meteor distribution and neutral atmospheric winds.

Note. Generally, it can detect the distribution of meteors within the range of 70 km to 110 km above the radar station, as well as the wind speed and direction in the neutral atmosphere.

Satellite and debris detection, near-space atmospheric wind field monitoring and early warning, etc.

3.3 Yagi antenna

An end-fire type consisting of an active oscillator (usually a folded oscillator), a passive reflector and several passive directors arranged in parallel. antenna.

4 Meteor Radar

4.1 Overview

The meteor trails produced by the ablation of meteors entering the atmosphere can scatter radio waves in the medium frequency, high frequency, very high frequency and ultra-high frequency bands.

The meteor radar involved in the document operates in the 25 MHz to 65 MHz frequency band, uses meteor trails as the main tracer, and adopts a wide beam

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 44434

Edition	Title	Revision	Status
GB/T 44434-2024	Space environment - Technical requirements for meteor radar	current edition	Current

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