An automatic test system for measurement and control subsystems suitable for navigation satellites

Abstract

An automatic test system for measurement and control subsystems suitable for navigation satellites, including integrated baseband equipment, frequency converters, vector signal analyzers, microwave signal sources, power meters, frequency meters, radio frequency channel equipment and test computers. The measurement and control integrated baseband equipment completes the modulation and demodulation of signals below the intermediate frequency, and the baseband processing of telemetry, remote control, and ranging signals; the up-down converter completes the output of the measurement and control integrated baseband equipment, and the conversion of the input signal from the intermediate frequency to the RF frequency; the RF channel equipment completes the RF signal Power control, channel switching, signal filtering; vector signal analyzer, microwave signal source, power meter, frequency meter and other general test equipment are used as performance index test equipment to complete the corresponding index test. All devices are connected to the internal network of the test system through their own network ports or interface conversion devices, and are uniformly scheduled by the system test software running on the test computer to complete the automated test.

Description

technical field [0001] The invention relates to an automatic test system for a spacecraft, in particular to an automatic test system for a measurement and control subsystem of a navigation satellite. Background technique [0002] In order to meet the multi-satellite parallel test tasks of the batch production of navigation satellites, it is necessary to make full use of information means while ensuring the test quality to improve the level of automated testing and comprehensive data management. As the communication service system of the spacecraft, the measurement and control subsystem needs to provide channel monitoring and telemetry data monitoring for the whole satellite test for a long time in addition to completing the function and performance index test of the subsystem itself. The existing spacecraft measurement and control test system has a low degree of versatility and automation, and mainly has the following shortcomings: (1) The test system has a single function, ...

AI Technical Summary

Problems solved by technology

The existing spacecraft measurement and control test system has a low degree of versatility and automation, and mainly has the following shortcomings: (1) The test system has a single function, poor comprehensiveness and versatility, and can only be tested for a specific measurement and control system of a specific spacecraft model , resulting in a waste of test resources; (2) The test system has poor interchangeability in the mass production test of spacecraft, and cannot meet the requirements of mass production test for multi-satellite test task scheduling, multi-satellite test data management, and multi-stage data query and comparison ;(3) It can only complete the function and performance index test, and cannot carry out long-term monitoring of signal and telemetry parameters; (4) The test can only be performed locally, and cannot provide remote test functions, etc.

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