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Introduction to GPS : The Global Positioning System
The idea of writing an easy-to-read, yet complete, GPS book evolved during my industrial employment term during the period from 1996 to 1997. My involvement in designing and providing short GPS courses gave me the opportunity to get direct feedbacks from GPS users with a wide variety of expertise and background. One of the most difficult tasks, which I encountered, was the recommendation of an appropriate GPS reference book to the course attendees. Giving the fact that the majority of the GPS users are faced with a very tight time, it was necessary that the selected GPS book be complete and easy-to-read. Such a book did not exist. Initially, I developed the vugraphs, which I used in the delivery of the short GPS courses. I then modified the vugraphs several times to accommodate not only the various types of GPS users but also my undergraduate students at both the University of New Brunswick and Ryerson University. The modified vugraphs were then used as the basis for this GPS book. I tried to address all aspects of GPS in a simple manner, avoiding any mathematics. The book also addresses more recent issues such as the modernization of GPS and the proposed European satellite navigation system known as Galileo. As well, the book emphasizes GPS applications, which will benefit not only the GPS users but also the GPS marketing and sales personnel. Chapter 1 of the book introduces the GPS system and its components. Chapter 2 examines the GPS signal structure, the GPS modernization, and the key types of the GPS measurements. An in-depth discussion of the errors and biases that affect the GPS measurements, along with suggestions on how to overcome them, is presented in Chapter 3. Datums, coordinate systems, and map projections are discussed in a simple manner in Chapter 4, offering a clear understanding of this widely misunderstood area. Chapters 5 and 6 address the various modes of GPS positioning and the issue of the ambiguity resolution of the carrier-phase measurements. The various GPS services available on the market and the standard formats used for the various types of GPS data are presented in Chapters 7 and 8. Chapter 9 focuses on the integration of the GPS with other systems. The GPS applications in the various fields are given in Chapter 10. The book ends with Chapter 11, which covers the other satellite navigation systems developed Or proposed in different parts of the world.
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