A method for storing and downloading satellite delay telemetry data

Abstract

The invention is applicable to the aerospace field and provides a satellite delay telemetry data storing and downloading method. The method comprises collecting real-time satellite telemetry data; storing the real-time satellite telemetry data into a nonvolatile memory in a cyclic covering mode to form uncompressed delay telemetry data; according to a preset storage cycle, synchronizing the critical data of the nonvolatile memory such as the current writing position, the reading position and the data downloading state to a satellite-mounted backup device; designing an uncompressed delay telemetry data downloading instruction, and according to user requirements, resuming uncompressed delay telemetry data which are not completely transmitted the last time or selecting uncompressed delay telemetry data corresponding to a downloading designated satellite time. The satellite delay telemetry data storing and downloading method has the advantages of solving the contradiction that microsatellites are large in overseas telemetry data volume and measurement and control modules are low in transmission bit rate, being capable of providing effectively support for satellite on-orbit abnormality location, overseas condition query and the like and effectively improving the system reliability.

Description

technical field [0001] The invention belongs to the field of aerospace, and relates to a method for storing and downloading satellite delay telemetry data, in particular to a method for storing and downloading satellite delay telemetry data based on low-speed S-band measurement and control components, and is suitable for using S-band low-speed The satellite of the measurement and control component performs on-orbit abnormal positioning and working condition analysis. Background technique [0002] During the operation of the satellite, the satellite transmits its own working status and other information data to the ground through the transmission of telemetry data from the ground measurement and control station. There are two types of telemetry data: real-time telemetry data and delayed telemetry data. When the satellite is within the monitoring range of the measurement and control station, its working status can be immediately transmitted to the ground through real-time tel...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a method for storing and downloading satellite delay telemetry data, aiming to solve the problem of relatively large compression of satellite delay telemetry data in the prior art due to the low code rate of the measurement and control components, which may easily cause satellite instantaneous state information Lost problem, so as to further effectively assist in the reproduction and positioning of satellite in-orbit anomalies, and can also be used to query and understand the working conditions of satellites at a specified time in the past, and improve the reliability of the system

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