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A beacon configuration optimization method based on Fisher information for Mars atmospheric entry

Imported: 15 Nov '16 | Published: 13 Nov '16

Zeduan Zhao, Zhengshi Yu, Pingyuan Cui

Acta Astronautica

Abstract: The navigation capability of the proposed Mars network based entry navigation system is directly related to the beacon number and the relative configuration between the beacons and the entry vehicle. In this paper, a new beacon configuration optimization method is developed based on the Fisher information theory and this method is suitable for any number of visible beacons. The proposed method can be used for the navigation schemes based on range measurements provided by radio transceivers or other sensors for Mars entry. The observability of specific state is defined as its Fisher information based on the observation model. The overall navigation capability is improved by maximizing the minimum average Fisher information, even though... Read More

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