The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL
Transactions ID Number: 89-801
Full Name: He-Sheng Wang
Position: Associate Professor
Age: ON
Sex: Male
Address: Dept. Communications, Navigation, and Control, National Taiwan Ocean University
Country: TAIWAN
Tel: 2-24622192 ext 7202
Tel prefix: +886
Fax: +886-2-24633492
E-mail address: mazinger.wang@gmail.com
Other E-mails: hswang@mail.ntou.edu.tw
Title of the Paper: A Convex Optimization Approach to GPS Receiver Tracking Loop Design
Authors as they appear in the Paper: He-Sheng Wang
Email addresses of all the authors: mazinger.wang@gmail.com
Number of paper pages: 17
Abstract: n this paper, the application of convex optimization theory to GPS (Global Positioning System) receiver tracking loops is investigated. We design an H∞ controller for the receiver tracking loop based on an LMI (Linear Matrix Inequality) approach. The H∞ controller is particularly attractive because it is a robust design in the sense that small disturbances lead to small tracking errors. Furthermore, it easily accommodates the inclusion of plant uncertainties as part of the plant model. By adding unstructured or structured perturbations to the plant model, it is possible to design controller that ensure stability robustness and performance robustness of the closed-loop system. In order to apply the H∞ optimal design, we first rewrite the GPS receiver tracking loop into a two-input two-output generalized plant model, and then the H∞ controller is design by using an LMI approach. The LMI is a convex optimization problem in which a local solution is guaranteed !
to be a global minimizer. By using a soft-ware-based GPS L5 signal generator, various levels of disturbances are derived as test inputs to evaluate the per-formance of the resulting tracking loop.
Keywords: GPS; Linear Matrix Inequality; Convex Optimization; H∞ Control; Delayed-Lock Loop
EXTENSION of the file: .doc
Special (Invited) Session: GPS Receiver Tracking Loop Optimization Based on a Behavioral Approach
Organizer of the Session: 637-264
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