Accession Number : AD0757194

Title :   Radio Aids to Navigation for the U. S. Coastal Confluence Region.

Descriptive Note : Final rept.

Corporate Author : POLHEMUS NAVIGATION SCIENCES INC BURLINGTON VT

Report Date : JUL 1972

Pagination or Media Count : 33

Abstract : The report entails an unbiased technical evaluation of the capabilities of three candidate radio navigation systems (Loran-C, Decca and Differential Omega) to satisfy the requirements of mariners in the U.S. Coastal Confluence Region (CCR). To insure objectivity in the evaluation of the aids, three manufacturers, each representing one of the systems under consideration, were asked to present the strongest possible advocacy of their respective systems in the context required to meet the previously established, and agreed upon, operational requirement. All three configurations were normalized to this requirement to allow comparison and each advocate participated in advance of preparation of his proposal in the development of terms of reference and identification of relevant physical phenomena affecting performance. The operational requirements were reviewed by expert marine consultants and the physical factors affecting performance of radio navigation aids were reviewed by other experts. A scoring system was devised with the assistance and concurrence of the systems advocates. And, finally, each advocate was permitted a rebuttal. The report presents a summary of the user requirements and the results of the systems evaluation. (Author Modified Abstract)

Descriptors :   *HYPERBOLIC NAVIGATION, SHIPS, SYSTEMS ENGINEERING, UNITED STATES, ACCEPTABILITY, SAFETY, ECONOMICS, BOATS, LORAN.

Subject Categories : Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE