A satellite Bayesian network health determination method based on ground test data
A Bayesian network, ground testing technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of multi-dimensional parameter quantification, relying on artificial experience and knowledge, and high data dimensions, and achieve the effect of an efficient method
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[0030] The implementation process of the present invention is described in detail below. In order to simplify the analysis, only the impact of the two on-board equipment, the battery pack and the momentum wheel, on the health status of the entire satellite is considered, and a Bayesian network for determining the health status of the satellite is established, such as figure 2 shown. And take the two test points of cell voltage and group A voltage as examples to illustrate the Bayesian network probability calculation and Bayesian inference process. The Bayesian network including the two root nodes of cell voltage and group A voltage is as follows image 3 shown.
[0031] (1) Establish a Bayesian network for determining the health status of the satellite to be evaluated.
[0032] The established Bayesian network for determining satellite health status is as follows: figure 2 As shown, the whole star state is the leaf node of the Bayesian network, and its parent nodes are the...
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