GPS vs Galileo: Balancing for Position in Space

ABSTRACT

This study comprises an investigation of Europe's motives to develop the independent satellite navigation system known as Galileo, despite the existence of America's successful – and freely available – Global Positioning System (GPS). The study begins with an analysis of both systems to familiarize the reader with global navigation satellite systems (GNSS), to provide an understanding of the strengths and weaknesses of GPS and Galileo, and to highlight the systems' similarities and differences. Although the two systems have different founding principles, they employ similar infrastructures and operational concepts. In the short term, however, Galileo will provide better accuracy for civilian users, at least until GPS upgrades take effect. But performance is only part of the rationale. The author contends that Europe's pursuit of Galileo represents a desire for enhanced performance and independence, as well as an economic incentive. With Galileo, Europe hopes to achieve political, security and technological independence from the United States. Additionally, Europe envisions overcoming the US monopoly on GNSS by seizing a sizable share of the expanding GNSS market and setting a new world standard for satellite navigation. Finally, the author explores Galileo's impact on the United States and reviews US policy towards Galileo. The article concludes with recommendations to strengthen the competitiveness of GPS.