Showing papers on "GNSS augmentation published in 1984"

Integrated Navigation Systems - Where Are We Headed?

Abstract: : The relentless penetration of technology and the explosion of information collecting and processing systems is rapidly becoming a challenge to users of modern navigation techniques. The most positive outlook is that development of new and improved integrated and synergistic navigation systems will result to take advantage of the common objective of all navigation systems -- accurate and quick determination of ship position. This paper traces briefly the rapid growth of technology and the information revolution. Navigation in the past -- and even now -- has involved paper charts, coupled with celestial and visual methods. Currently, we are experiencing growing capabilities to figure navigation problems quickly using hand-held calculators, portable computers, and to position ourselves worldwide with such systems as Omega and the Global Positioning System. To cope with excessive information overload, there is a need to integrate into a simple system changing status of events affecting ship operations using such diverse data elements as weather, fuel consumption rate, ship position and track, display of essential chart features, and Notice to Mariners changes. The integrated navigation system, a subsystem in a comprehensive ship control system, will have to be capable of allowing the mariner to selectively handle the data mass available. The objective of the paper is to stimulate discussion in actual and conceptual approaches to integrated navigation systems. (Author)