Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8059000 | Aerospace Science and Technology | 2015 | 9 Pages |
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 system with the drag-tracking error and its rate as states 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 shows the effectiveness of the presented approach.
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Han Yan, Yingzi He,