To the latest information on the book:A-GPS by Frank van Diggelen

A-GPS: Assisted GPS, GNSS, and SBAS.               

Assisted GPS helps receivers work better and faster in almost any location. This book explains how.

It is meant primarily for design engineers and researchers already familiar with the workings of standard GPS. However, it is also accessible to a less technical audience; anyone can read Chapters 1 and 2 in their entirety, then Chapters 3.1, 4.1, … and so on, to get an overview of the subject.

For the techies, if you like:

  • Navigation or linear algebra: Chapters 4, 5 and 8 are for you.
  • Signal processing: Chapter 6, High Sensitivity, is almost a book unto itself.
  • Systems and infrastructure: Chapters 3, 7, & 9.
  • The future: Chapter 10 has something for everyone.


“Dr. van Diggelen has a masterpiece on his hands. He covers the topic of Assisted GPS, which will be a critical technology for a good long time. In every paragraph, his love of teaching shines through. He writes with a snap and cadence seldom found in technical writing. He also includes a “book within a book;” some 80 pages or so can be found at the beginning of the book and each chapter. These essays provide overviews to the more analytical material that follows. Enjoy.”

Professor Per Enge, PhD, NAE, Stanford University

“The rapid penetration of GPS into consumer markets has been sustained in no small measure by developments in Assisted GPS. This timely text provides a comprehensive explanation of this emerging technology. It is a highly readable book, rich in new material such as coarse-time navigation, achievable sensitivity, and initial position from Doppler measurements.”

Charles R. Trimble, Founder Trimble Navigation.

“Assisted GPS is a deep topic, and Frank van Diggelen has skillfully explained everything from the details of coarse-time navigation to the limits of high-sensitivity signal processing. An impressively thorough book that leaves no stone unturned”.

Steve Wozniak, Fellow, Apple Inc.

“The proliferation of Assisted GPS into consumer electronics merited an in-depth explanation of the technology and science behind it. Dr van Diggelen, an A-GPS authority in the navigation industry, shares his wealth of academic, engineering and field experience with all of us in a truly accessible manner. Warmly recommended to all involved in building location aware products and services.”

Peter-Frans Pauwels, Cofounder and CTO, TomTom.



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