This thoroughly updated third edition of an Artech House bestseller brings together a team of leading experts providing a current and comprehensive treatment of the Global Navigation Satellite System (GNSS) that readers won t find in other resources. Packed with brand new material, this third edition includes new chapters on the system engineering details of GPS, GLONASS, Galileo, Beidou (BDS), and regional systems, such as the Quasi Zenith Satellite System (QZSS) and Navigation with Indian Constellation (NavIC). Readers also find new coverage of GNSS receivers, disruptions, errors, stand-alone GNSS performance, and differential and precise point positioning.