Professor Madry, one of the worlds leading experts in the field of the practical applications of satellites and space technologies, provides in a condensed form, a quick yet comprehensive overview of all aspects of satellite navigation. This new edition concisely addresses the latest breakthrough technologies, the various national systems, the many applications, the regulatory issues, and the strategic implications of satellite navigation systems. The future directions of autonomous aircraft and the role drones play in satellite navigation networks are also evaluated. Moreover, the industrys strengths and weaknesses are discussed, as well as reviews of all the various national systems now being deployed. The motivation behind the proliferation of these systems, in this book, evaluates the overall societal and ethical issues of these invisible yet pervasive parts of our modern digital world.