SEARCH AND RESCUE USING NAVAID RETRANSMISSION

Retransmission of radionavigation signals can be used to determine the position of a party needing rescue, in somewhat the same manner as it is used to track weather ballons and drifting ocean buoys. Such a concept equips the rescue radio/beacon transmitter with the "front end" of a radionavigation receiver, and locates the computer and display portion of the radionavigation receiver with the receiver of the rescue signals. The selection of a particular navaid depends on the particular application. Aspects to be considered include waiting time, coverage, accuracy, and cost, as well as ambiguities, preprocessing, and the relay link. This paper discusses the use of seven major signal sources: Omega, Loran-C, Russian Omega, VLF communications, sferics, and the NAVSTAR GPS.

• Supplemental Notes:
  • Presented at the National Marine Navigation Meeting, Maritime Institute of Technology and Graduate Studies, Linthicum Heights, Maryland, October 31-November 1, 1977.
• Corporate Authors:

  Institute of Navigation

  815 14th Street, NW
  Washington, DC  United States  20005
• Authors:
  • Raab, F H
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: p. 25-34
• Serial:
  • Publication of: American Concrete Institute
  • Publisher: American Concrete Institute (ACI)

Subject/Index Terms

• TRT Terms: Loran C; Navigation; Omega navigation system; Position fixing; Radio navigation; Radio signals; Search and rescue operations; Tracking systems; Very low frequency
• Old TRIS Terms: Omega navigation; Position finding; Vlf navigation
• Subject Areas: Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00170502
• Record Type: Publication
• Source Agency: Institute of Navigation
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM