Showing papers on "Performance-based navigation published in 1986"
TL;DR: The chapter provides the background and historical perspective necessary to view DME in the broader context of air navigation and its specific role in the National Airspace System (NAS).
Abstract: Publisher Summary Two main types of distance measuring equipment (DME)—that is,DME/N and DME/P—have been standardized by the International Civil Aviation Organization (ICAO) This chapter views both DME/N and the new DME/P from a broad systems engineering perspective Like many other navigation aids, DME is characterized in terms of a signal format, accuracy, coverage, radio frequency assignment, the measurement technique used to extract the DME navigation parameter, and the output guidance information rate A DME must also satisfy certain levels of signal integrity and availability The chapter provides the background and historical perspective necessary to view DME in the broader context of air navigation and its specific role in the National Airspace System (NAS) The navigation applications discussed in this chapter are restricted to the air traffic control system as it is defined by the ICAO and as it is implemented in the United States Therefore, only the domestic enroute, terminal, and approach/landing phases of flight have been addressed Enroute and approach/landing scenarios have been defined using only the conventional takeoff and land (CTOL) aircraft type However, DME is not restricted to these applications or to CTOL aircraft Both helicopter and remote area operations, for example, come under the broad envelope of DME applications
37 citations
TL;DR: Data will be presented to show how the combined product can yield better navigation information than either system by itself, and how the whole is greater than the sum of the parts.
Abstract: LORAN and GPS are both well known navigation systems, and both have advantages and disadvantages. By combining both, the navigator can get the advantages of both and minimize the disadvantages of each.
When GPS becomes fully operational, it will replace virtually all other navigation systems. Until that time (late 1988), there will be substantial lapses of coverage. It is during this time that LORAN provides the backup. This combination is the first system that can provide the transoceanic vessel with real time, accurate navigation information at both ports and periodic accurate navigation information enroute.
This paper will review the two systems and then show how the whole is greater than the sum of the parts. In particular, data will be presented to show how the combined product can yield better navigation information than either system by itself.
8 citations