Effects of observer dynamics on motion stability of autonomous vehicles

Approved for public release; distribution is unlimited === The problem of loss of stability of marine vehicles under cross track error control in the presence of mathematical versus actual system mismatch is analyzed. For demonstration purposes, variations in the heading angle control gain are studi...

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Bibliographic Details
Main Author: Olcay, Bülent
Other Authors: Papoulias, Folis A.
Language:en_US
Published: Monterey, California. Naval Postgraduate School 2013
Online Access:http://hdl.handle.net/10945/28148
Description
Summary:Approved for public release; distribution is unlimited === The problem of loss of stability of marine vehicles under cross track error control in the presence of mathematical versus actual system mismatch is analyzed. For demonstration purposes, variations in the heading angle control gain are studied. Particular emphasis is placed on analyzing the effects of observer design on system response after initial loss of stability of straight line motion. It is shown that the dynamics of the observer may have a significant effect on the computed gain margin of the control system depending on the particular basis used