Accession Number:

AD0901763

Title:

Undersea Detection of Various Signals

Descriptive Note:

Research and development rept. Sep 1970-Mar 1971

Corporate Author:

NAVAL UNDERSEA RESEARCH AND DEVELOPMENT CENTER SAN DIEGO CA

Personal Author(s):

Report Date:

1972-07-01

Pagination or Media Count:

92.0

Abstract:

Tradeoffs involved in the undersea detection of static and time- varying signals are examined and the quantitative results are discussed in this report. Static electric and magnetic fields, radioactive fields, chemical systems, extremely-low-frequency ELF electromagnetic radiation, light, and acoustics were studied, and the results were tabulated in chart form. For time- varying fields, underwater light exhibits inferior range and ELF exhibits inferior bandwidth when compared with acoustics. Ranges from approximately 3 to 14 km are achievable for chemical and ELF sources, respectively, when they are used as static markers.

Subject Categories:

  • Underwater and Marine Navigation and Guidance
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE