GB/T 47035-2026General test methods for spacecraft communication radio frequency links (English PDF)

1 Scope

This document describes the test objectives, test objects, test environment, test requirements, and test items for ground testing of spacecraft communication radio frequency links.

The study also includes wired testing methods under normal temperature and pressure, thermal vacuum, and low pressure environments, as well as wireless testing methods under normal temperature and pressure environments.

method.

This document applies to ground testing of spacecraft communication radio frequency links.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 12639-2021 On-orbit Test Methods for Payloads of Geosynchronous Orbit Communication Satellites

GB/T 14733.10 Telecommunications Terminology - Antenna

GB/T 29084 Spacecraft Grounding Requirements

GB/T 32452 Terminology for Spacecraft Space Environment

GB/T 34522 Methods for thermal vacuum testing of spacecraft

GB/T 37833 General requirements for spacecraft safety protection

GB/T 40134 Electromagnetic compatibility requirements for aerospace systems

GB/T 40602.1 Radio interference with antennas and receiving systems – Part 1.Basic measurements – Indoor far-field measurement of antenna patterns

Quantification method

3 Terms and Definitions

The terms and definitions defined in GB/T 14733.10, GB/T 32452, GB/T 40134 and GB/T 40602.1 apply to this document.

4 Test Objective

Based on the characteristics of spacecraft communication radio frequency links, test data of various technical indicators of spacecraft communication radio frequency links are accurately obtained on the ground.

5 Test Subjects

Spacecraft communication radio frequency links refer to spacecraft communication links that use radio frequency microwave signals as the transmission medium. Their functions include single-receive, single-transmit, and single-receive.

There are three scenarios. sending and receiving. Single receive function corresponds to test object A, single send function corresponds to test object B, and both send and receive functions correspond to test object C, as shown below.

As shown in Figures 1, 2, and 3.

Considering that any type of spacecraft communication radio frequency link includes an antenna, the spacecraft communication radio frequency link will be tested using a layered testing method.

The testing is divided into wired testing and wireless testing. Wired testing is for test object A, test object B, and test object without antennas.

C, in this paper, are defined as test object A0, test object B0, and test object C0, respectively. Wireless testing is oriented towards test object A and test object C0.