GPS technology has become very much prevalent in commercial aviation. Most commercial jetliners now increasingly employ GPS navigation for first and non-precision approach to specified airfields. The Automatic Dependent Surveillance – Broadcast (ADB-B) is the futuristic primary guidance and navigational GPS technology for which a substantial amount of research, development and investments are being poured in. The evolution of this technology is not restricted to any one country but is being developed internationally through strategic technological multi-lateral alliances. Besides its use in commercial aviation, the GPS ADB-B technology is also being employed in the navigation Unmanned Aerial Vehicles (UAVs). The UAV’s are primarily used for resource mapping and air surveillance imaging – a job that was previously tasked with earth orbiting satellites such as the NASA Landsat.
The all encompassing, all progressing GPS technology has further underlined its existence in the area of maritime technology. GPS digital technology has since replaced conventional digital marine technology and is now being employed to include such vital operational parameters as ocean and inshore navigation, dredging, port and harbor entry system navigation and docking, Vessel Traffic Services (VTS), Automatic Identification System (AIS), hydrographical data collection and freight logistics.
In respect to railroad navigation, GPS technology is widely used today to streamline these navigational essentials that include the management of rolling stock, passenger data, prevention of door releases contingent to carriage platform orientation, freight tracking signaling, train ethics and level crossing approach.
The applications of GPS technologies in various scientific fields are rather prevalent and impactful; these include such areas as environmental and atmospheric monitoring, animal behaviour research, botanical specimen areas, meteorology and climate research, agriculture, fisheries and fishing, land area mapping, yield monitoring, precision planting of crops, spray and harvest monitoring, autonomous vehicle control.
Security is another very broad field that uses GOS technologies. GPS security applications include tracking of all sorts of vehicles – light and heavy vehicles, 20 and 40 ft. containers comprising general freight, special air-conditioned containers for perishable food products, security tracking of vehicles for the transport of criminals and suspects, etc..
It is clear that the GPS technology is indeed very applicable and suited to a very wide spectrum of scientific and technological applications which call for continuous monitoring and tracking data, particularly if the targeted objects are important, urgent, sensitive and valuable.