A system for interpreting telemetry data based on k-means

Abstract

A telemetry data interpretation system based on K-means. By sorting out the characteristics of small satellite telemetry parameters, the change law of parameters is divided into four categories, and the satellite telemetry parameters are established according to the mapping table between the change law of satellite telemetry parameters and related instructions or states. It is necessary to establish the number of K-means models, telemetry data processing methods and parameter forms; use normal data to train the K-means model parameters corresponding to the satellite telemetry parameters, and package the K-means models that have been trained into a set; after completing the modeling Finally, the system obtains satellite real-time telemetry data and remote control commands from the main test computer and database, interprets the telemetry parameters corresponding to the model, and gives the abnormal points and warning points of the parameters; the testers give the interpretation of abnormal points and early warning points according to the model The results are confirmed, and the missing points in the model during the operation of the satellite are input into the model to realize the dynamic correction of the model.

Description

Technical field [0001] The invention relates to the interpretation of ground telemetry data in satellite testing, in particular to an improved K-means satellite telemetry data interpretation system. Background technique [0002] At present, in the process of comprehensive testing of small satellite factories, testers need to interpret satellite upload instructions and download telemetry data according to interpretation standards, give the operating status of each satellite and equipment, and provide timely feedback on possible abnormalities in the satellite. Out of anticipation. However, the amount of satellite telemetry data is huge and changes quickly, the betting instructions involve a wide range, and the satellite working mode is complicated. The usual manual interpretation is difficult to meet the rapid test of the satellite, especially the batch test of the microsatellite. [0003] "A Satellite Telemetry Data Interpretation System Based on Kalman Filtering" proposed by Wu Ji...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: in order to realize the rapid test of the satellite and prevent the hidden dangers of misjudgment and missed judgment in the artificial interpretation during the test process, the present invention proposes an improved K-means-based telemetry data interpretation system to realize satellite Uninterrupted monitoring of telemetry parameters and interpretation of feedback from satellite onboarding commands

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