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- W2476433431 abstract "The uncertain parameters exist in Mars entry have a significant effect on Mars entry navigation. In this paper, the hierarchical adaptive filter regulated by a gating network is presented to identify the uncertain parameters during Mars entry, which are atmosphere density, lift over drag ratio and ballistic coefficient. The hierarchical structure is composed of several bank of filters, and each bank of filters is composed of several experts running in parallel. Each expert is a realization of some parameter values. The gating network can adaptively assign appropriate weights to the filter banks and the experts. The weight which is close to unity corresponding to certain expert means that the given parameter value is close to the real value or is right the real value. By this way, the uncertain parameters can be identified. Also the effect of learning rate factor on the convergence rate of gating weights and the identification capability is demonstrated. The effectiveness of this method can be illustrated by the case of Mars entry navigation." @default.
- W2476433431 created "2016-08-23" @default.
- W2476433431 creator A5006938103 @default.
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- W2476433431 date "2016-06-01" @default.
- W2476433431 modified "2023-09-25" @default.
- W2476433431 title "Uncertain parameters identification based on hierarchical adaptive filters during Mars entry" @default.
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- W2476433431 doi "https://doi.org/10.1109/vss.2016.7506947" @default.
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