BASIC CONCEPTS OF THE GLOBAL POSITIONING SYSTEM (GPS) AND ITS FUTURE APPLICATIONS

ABSTRACT: This paper explores and reviews the basic concepts of GPS. Recently, there has been increasing interest within the potential user community of Global Positioning System (GPS) for high precision navigation problems such as aircraft non precision approach, river and harbor navigation, real-time or kinematic surveying. The Global Positioning System (GPS) is a space-based radio navigation system that provides consistent positioning, navigation, and timing services to civilian users on a continuous worldwide basis. The GPS system receiver provides exact location and time information for an unlimited number of users in all weather, day and night, anywhere in the world. The GPS concept is based on time and position. GPS is a widely used tool for navigation & position tracking. It is free of charge. It is also useful in finding user’s position in time. It is employed in finding location and the corresponding changes on the earth surface with grater` precision. There are numerous applications of GPS covering almost every domain. It is been used from past two decades providing precision and accuracy over other methods such as Radar.