Accession Number : ADA301140

Title :   GPS-Squitter Automatic Dependent Surveillance Broadcast: Flight Testing in the Gulf of Mexico,

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : Boisevert, R. E. ; Burrows, M. L. ; Bussolari, S. R. ; Knittel, G. H. ; Owen, M. R.

PDF Url : ADA301140

Report Date : 13 OCT 1995

Pagination or Media Count : 74

Abstract : During November - December 1994, MIT Lincoln Laboratory conducted a field evaluation of the air surveillance capabilities of GPS-Squitter in the Gulf of Mexico. Three squitter ground stations were located in the vicinity of Morgan City, Louisiana, for this evaluation: two were located on offshore oil platforms, and the third was located at an onshore heliport. Surveillance coverage tests were flown over the Gulf with three test aircraft-two helicopters and one Cessna 421 fixed- wing aircraft. The helicopters flew at altitudes ranging from 100 to 2000 feet above sea level and the Cessna flew at 7500 and 20,000 feet. Extended squitter messages broadcast by each of the test aircraft provided aircraft position and identification. This report documents results of these tests and compares measured coverage to predicted coverage from the ground stations. Based on the good agreement between predicted and measured performance, a description of a possible operational system is included that would provide surveillance of the entire Gulf region serviced by oil platform helicopters. The report concludes that GPS- Squitter is a near-term option for providing accurate, real-time surveillance of aircraft operating in the offshore airspace in the Gulf of Mexico.

Descriptors :   *GLOBAL POSITIONING SYSTEM, *SURVEILLANCE, TEST AND EVALUATION, FLIGHT TESTING, POSITION(LOCATION), GULFS, AIRCRAFT, REAL TIME, FIELD TESTS, REGIONS, HELICOPTERS, PLATFORMS, AIR SPACE, TEST VEHICLES, OILS, WINGS, SEA LEVEL, GROUND STATIONS, SHORES, OFFSHORE, LOUISIANA, MEXICO GULF, HELIPORTS.

Subject Categories : Military Intelligence
      Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE