A 406 MHz Global Positioning System/Emergency Location Transmitter for Search and Rescue Satellite Operations.

Abstract

The SARSAT (Search and Rescue Satellite) has demonstrated the use of 121.5/243.0 MHz beacons to locate the victims of aircraft and marine accidents. An experimental 406 MHz Emergency Location Transmitter (ELT) has been developed by NASA allowing a digital message containing identification and timing information as an alternative to the tone modulation signal provided on the 121.5/243.0 MHz ELT. Utilization of Global Positioning System (GPS) information with the 406 MHz ELT could greatly enhance the accuracy of the SARSAT system by including GPS position coordinates within the digital message. Location accuracies of less than 100 meters could be provided worldwide, which is ten times better than that available with the experimental 406 MHz ELT. (Author).

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Document Details

Document Type
Technical Report
Publication Date
Apr 15, 1985
Accession Number
ADA158642

Entities

People

  • K. P. Maine

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Aircrafts
  • Artificial Satellites
  • Emergencies
  • Global Positioning Systems
  • Ground Vehicles
  • Identification
  • Latitude
  • Longitude
  • Navigation
  • Navigation Satellites
  • Navigational Equipment
  • Position (Location)
  • Position Finding
  • Systems Engineering
  • Transmitters

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Maritime Security/Maritime Homeland Security
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space
  • Space - Space Objects