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arXiv · 1409.7755

Drag-Tracking Guidance for Entry Vehicles Without Drag Rate Measurement

Han Yan·Yingzi He
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Abstract

A robust entry guidance law without drag rate measurement is designed for drag-tracking in this paper. The bank angle is regarded as the control variable. First, a state feedback guidance law (bank angle magnitude) that requires the drag and its rate as feedback information is designed to make the drag-tracking error be input-to-state stable (ISS) with respect to uncertainties. Then a high gain observer is utilized to estimate the drag rate which is difficult for a vehicle to measure accurately in practice. Stability analysis as well as simulation results show the efficiency of the presented approach.

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BibTeXRIS

Han Yan, Yingzi He. 2014-09-27. Drag-Tracking Guidance for Entry Vehicles Without Drag Rate Measurement. https://arxiv.org/abs/1409.7755

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