Satellite Navigation Technologies

The primary system widely used for localizing a radio-receiving terminal is the Global Positioning System (GPS). GPS satellites employ the Code Division Multiple Access (CDMA) technique and share the same frequency bands. Each satellite transmits a low-rate Binary Phase Shift Keying (BPSK) digital signal on specific sub-bands which contains Navigation (NAV) data used by the receiver for ranging.Differential GPS (DGPS) is an enhancement to GPS that employs a network of fixed ground-based reference stations. These stations broadcast the difference between the position of a receiver located at each station as determined in real-time using GNSS and the known fixed positions of the stations themselves.This book covers the satellite-based navigation systems offering a comprehensive review of their status and impact. It explores the landscape of global navigation satellite systems regional satellite navigation systems and satellite-based augmentation systems providing an in-depth analysis of their functionalities and applications.