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A Screening Method for Space Environment Sensitive Parameters

A technology of sensitive parameters and space environment, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of detecting telemetry parameters, etc., and achieve the effect of ensuring safe and reliable operation in orbit

Active Publication Date: 2017-12-08
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the thousands of telemetry parameters, the existing technology does not yet have the means to detect all the telemetry parameters

Method used

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  • A Screening Method for Space Environment Sensitive Parameters
  • A Screening Method for Space Environment Sensitive Parameters
  • A Screening Method for Space Environment Sensitive Parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] First, according to the mechanism analysis, more than 100,000 telemetry parameters of 78 on-orbit spacecraft were screened, and 569 telemetry parameters related to the space environment were screened out from 61 on-orbit spacecraft.

[0042] Then according to the technical process of the above method, first preprocess the telemetry parameter data, eliminate suspicious data, count the number of telemetry jumps on a daily basis, calculate the correlation coefficient with each daily astronomical data, and filter out the telemetry parameters with a correlation coefficient greater than 0.2 As a space environment sensitive parameter.

[0043] The 569 telemetry data of 61 in-orbit spacecraft from 2007 to 2013 were screened and correlated with 52 space environment parameters (see Table 2). 53 space environment sensitive parameters were screened out. (See Table 3)

[0044] Among them, the data of single bit error count and logEeV0.6M of the telemetry parameters of the 30th sat...

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Abstract

The invention provides a space environment sensitive parameter screening method. According to the method, telemetry parameters are screened through mechanism analysis and correlation calculation, and parameters related to the space environment and capable of directly reflecting the actual influences of the space environment on an on-orbit spacecraft can be obtained, that is, the space environment sensitive parameters are screened; then, the space environment sensitive parameters of the on-orbit spacecraft are monitored and analyzed by means of the prior art, and spacecraft on-obit management personnel can monitor the actual influences on the spacecraft of the space environment and conduct related operation according to the influences, so that the on-orbit safe and reliable operation of the spacecraft is guaranteed, and it is guaranteed that space missions are accomplished completely.

Description

technical field [0001] The invention belongs to the field of on-orbit operation management of spacecraft, and in particular relates to a method for screening space environment sensitive parameters. Background technique [0002] The influence of space environment on on-orbit spacecraft has become an important factor to be considered in spacecraft on-orbit management. At the same time as the development of long-life satellites, new composite materials and microelectronic components are also being used more and more, which increases the possibility of failures induced by the space environment. [0003] The spacecraft has as many as thousands of telemetry parameters, some of which are sensitive to changes in the space environment, that is, when the space environment changes greatly, the telemetry values ​​will change. Some of these telemetry changes directly reflect spacecraft anomalies or malfunctions. Changes in these telemetry values ​​can intuitively reflect the impact of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 戴雪扬赵振岩陈曦李志强韩洪波李文东杨萍刘鹏王志会
Owner BEIJING INST OF SPACECRAFT SYST ENG
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