Accession Number:

ADA281034

Title:

Design of a GPS Aided Guidance Navigation, and Control System for Trajectory Control of an Air Vehicle

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

• Hallberg, Eric N.

Report Date:

1994-03-01

Pagination or Media Count:

118.0

Abstract:

The advent of GPS has afforded the aerospace controls engineer a powerful, new means of controlling air vehicles This work explores a new method of designing and implementing controllers and guidance systems for autonomous control of air vehicles utilizing a GPS integrated guidance, navigation and control system. This is a subject of considerable interest when realizing controllers to track reference trajectories given in an inertial reference frame. The design, implementation, and dynamic simulation of a precise tracking trajectory controller for an Unmanned Air Vehicle UAV is presented. This design provides a natural conversion of commands and other measured outputs such as GPS signals from an inertial reference frame to a body-fixed reference frame. This achieves automatic recruiting of the actuators while preserving the properties of the original design linearization principle. Trajectory control, GNC, Linear Quadratic regulator, LQR, Kalman filter, Nonlinear simulation, D- Implementation, Bluebird.

Descriptors:

• *AIR NAVIGATION
• *TRAJECTORIES
• *REMOTELY PILOTED VEHICLES
• CONVERSION
• OUTPUT
• CONTROL
• SIMULATION
• CONTROL SYSTEMS
• DYNAMICS
• GLOBAL POSITIONING SYSTEM
• ENGINEERS
• TRACKS
• BODIES
• AUTOMATIC
• FILTERS
• VEHICLES
• FRAMES
• ACTUATORS
• WORK
• GUIDANCE
• UNMANNED
• SIGNALS
• RECRUITING
• TRACKING
• THESES
• REGULATORS
• NAVIGATION

Subject Categories:

• Pilotless Aircraft
• Air Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE