Method for recording and downloading satellite measured and controlled telemetry parameters of invisible arc section

Abstract

The invention relates to a method for recording and downloading satellite measured and controlled telemetry parameters of an invisible arc section, which is used for being matched with a time scale command to complete recording and downloading of delayed telemetry of the invisible arc section. The method comprises the following steps of: when executing the time scale command and indicating the current state as a departure state, recording according to a recording strategy of the delayed telemetry; and when executing the time scale command and indicating the current state as an entry state, downloading according to a downloading strategy of the delayed telemetry in the time scale command. The recording strategy comprises two modes of period recording and condition recording. The downloading modes comprise a totally downloading mode, an extraction proportion downloading mode and a time period selective downloading mode. By the mode that the method is matched with the time scale command,the automatic recording and downloading of the delayed telemetry can be realized. Due to the adoption of the recording strategy and the downloading modes, corresponding processing can be carried out according to different types of data. The method is more flexible and has higher storage and downloading efficiency, so that the satellite state is furthest reflected by utilizing the effective bandwidth and the basis is provided for fault analysis and judgment of a satellite outside the monitoring arc section.

Description

technical field [0001] The invention belongs to the technical field of spacecraft measurement and control communication, and relates to a method for processing telemetry data. Background technique [0002] The telemetry data of the spacecraft generally includes the health data, working condition data, remote control response data and performance data of each subsystem and each equipment. Telemetry data is of great significance for understanding the health status and working status of the spacecraft. However, due to the limitation of the number and distribution of measurement and control points, the spacecraft has an unmonitorable arc section, which becomes a blind area for spacecraft monitoring. How to obtain the telemetry information of this working segment has become an important issue. [0003] The more intuitive processing method is to equip a large-capacity memory on the star, store all these telemetry parameters, and then download them to the ground in the visible ar...

AI Technical Summary

Problems solved by technology

[0004] 1. When the invisible arc is relatively long, the amount of data will be very large, and the size of the memory itself will be limited by factors such as cost and technology, and it is impossible to increase without limit;

[0005]2. Affected by the measurement and control channel bandwidth and the ratio of the length of the visible arc to the invisible arc, the stored data may not all be downloaded to the ground

[0006] In addition, different types of data have different change patterns and contribute differently to ground monitoring and analysis satellites. Therefore, it is not appropriate to store and download all telemetry data. scientific

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