Browsing by Author "Bevly, David M."

Two adaptive control algorithms for the automatic steering control of a farm tractor with varying hitch forces are developed. Tractors can be configured many different implements, and implements interact with the soil in ...

In this thesis, an algorithm for detecting multipath and spoofed GPS signals based on signal angle of arrival (AOA) is developed. As the first step in determining the AOA of the signals, a multi-antenna array of GPS antennas ...

Magnetic bearings offer a number of advantages over conventional rolling element bearings. Magnetic bearings provide support for rotating systems through magnetic levitation rather than by mechanical contact, nearly ...

This thesis analyzes and provides algorithms that protect against various carrier phase positioning errors caused by anti-jamming algorithms commonly used to position in a jamming environment. These position errors include ...

This thesis presents an effort to improve the path following reliability of a tractor-trailer system by using a non-linear Model Predictive Control (MPC) approach. The proposed method allows an autonomous mobile robot to ...

This thesis develops simplified equations to predict a velocity in which vehicle rollover or tire saturation occurs. These equations are functions of different vehicle parameters that are important to vehicle handling ...

This dissertation develops an application of the state-of-the-art convex optimization algorithms to the vehicle state estimation problem. The main challenge in this field is that the time-varying uncertain parameters and ...