Showing papers on "GNSS augmentation published in 1993"
12 Oct 1993
TL;DR: Specific details are given on the communication technology developed and used in the transponder, system operation, integration with other systems redundantly features, the global map database, data link capacity and capability and operations over land.
Abstract: The author reports on the satellite navigation technology for an array of communication, navigation, and surveillance applications which employs GNSS Transponder. Specific details are given on the communication technology developed and used in the transponder, system operation, integration with other systems redundantly features, the global map database, data link capacity and capability and operations over land.
3 citations
TL;DR: The concept, called Global Navigation Satellite System time synchronized time division multiple access, uses a method of allocating time slots for broadcast of position data by aircraft on an absolute satellite-derived time line.
Abstract: This article describes a concept for the broadcast of satellite-based position data. This data has the potential for use for air traffic control applications such as situational awareness or collision avoidance. The concept, called Global Navigation Satellite System (GNSS) time synchronized time division multiple access, uses a method of allocating time slots for broadcast of position data by aircraft on an absolute satellite-derived time line. An on-board unit called the GNSS transponder utilizes a satellite receiver, a data link transmitter and receiver, and a processor. Included in the article are descriptions of the GNSS transponder, message formats, and possible extensions of the concept for operational use. © 1994 John Wiley & Sons, Inc.
TL;DR: To accomplish the precise navigation and other functions a complementary data link is needed, and this data link should enable the needed functionality, without the need for the government to create an extensive ground infrastructure or mandate artificially expensive airborne equipage.
Abstract: The advent of the Global Navigation Satellite System (GNSS) is having a profound impact on surveying, mapping, and navigation. Nowhere is this more evident than in civil aviation. In addition to the capability for cost effective precise positioning and navigation, there is now the possibility to conceive systems based on this technology that for the first time can provide automatic dependent surveillance (ADS), cockpit display of traffic information (CDTI), and collision avoidance (CA) functions at, and incremental cost to, the aircraft operator relative to the cost of a GNSS navigation capability alone. To accomplish the precise navigation and other functions a complementary data link is needed. Preferably this data link should enable the needed functionality, without the need for the government to create an extensive ground infrastructure or mandate artificially expensive airborne equipage. Instead, aircraft equipage should be driven by the system’s ability to deliver the desired user benefits with cost...