Observables
In concept, the GPS observables are ranges which are deduced from measured time or phase differences based on a comparison between received signals and receiver generated signals. Unlike the terrestrial electronic distance measurements, GPS uses the “one
- PDF / 36,210,571 Bytes
- 400 Pages / 481.88 x 691.652 pts Page_size
- 53 Downloads / 219 Views
Springer-Verlag Wien GmbH
Dr. Bernhard Hofmann-Wellenhof Dr. Herbert Lichtenegger Abteilung für Positionierung und Navigation, Technische Universität Graz Graz, Austria
Dr. James Collins GPS Services, lnc. Rockville, Maryland, U.S.A.
This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those uf translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machines or similar means, and storage in data banks. © 2001 Springer-Verlag Wien Ursprünglich erschienen bei Springer-Verlag Wien New York 2001 Camera-ready copies provided by the authors Cover illustration: photograph courtesy of RockweIl International Printed by Novographic Druck G.m.b.H., A-1230 Wien Printed on acid-free and chlorine-free bleached paper SPIN 10772968
With 45 Figures
ISBN 978-3-211-83534-0 ISBN 978-3-7091-6199-9 (eBook) DOI 10.1007/978-3-7091-6199-9
We dedicate this book to
Benjamin William Remondi
Foreword This book is dedicated to Dr. Benjamin William Remondi for many reasons. The project of writing a Global Positioning System (GPS) book was conceived in April 1988 at a GPS meeting in Darmstadt, Germany. Dr. Remondi discussed with me the need for an additional GPS textbook and suggested a possible joint effort. In 1989, I was willing to commit myself to such a project. Unfortunately, the timing was less than ideal for Dr. Remondi. Therefore, I decided to st a rt the project with other coauthors. Dr. Remondi agreed and indicated his willingness to be a reviewer. I selected Dr. Herbert Lichtenegger, my colleague from the Technical University Graz, Austria, and Dr. James Collins from Rockville, Maryland, U.S.A. In my opinion, the knowledge of the three authors should cover the wide spectrum of GPS. Dr. Lichtenegger is a geodesist with broad experience in both theory and practice. He has specialized his research to geodetic astronomy including orbital theory and geodynamical phenomena. Since 1986, Dr. Lichtenegger's main interest is dedicated to GPS. Dr. Collins retired from the U.S. National Geodetic Survey in 1980, where he was the Deputy Director. For the past ten years, he has been deeply involved in using GPS technology with an emphasis on surveying. Dr. Collins was the founder and president of GeofHydro Inc. My own background is theoretically oriented. My first chief, Prof. Dr. Peter Meissl, was an excellent theoretician; and my former chief, Prof. Dr.mult. Helmut Moritz, fortunately, still is. It is appropriate here to say a word of thanks to Prof. Dr.mult. Helmut Moritz , whom I consider my mentor in science. He is - as is probably widely known - one of the world 's leading geodesists and is currently president of the International Union for Geodesy and Geophysics (IUGG). In the fall of 1984, he told me I should go to the U.S.A. to learn about GPS. I certainly agreed, although I did not even know what GPS meant. On the same day, Helmut Moritz called Admiral Dr. John Bossler, at that time the Director of the National Geodet
