Project COMBO: Review and Recommendations

Abstract

Project COMBO produced the elements of a covert communications system that conveys coded messages using selected marine animal sounds in a natural sound environment. Project progress includes development of a coding technique, a computer program for elemental synthesis, and a recognizer/decoder instrument that is compatible with fleet low-data-rate communications equipment. The report also discusses properties of available transducers and characteristics of marine animal sounds as possible elements of covert communication systems.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1980
Accession Number
ADC022345

Entities

People

  • P. O. Thompson
  • R. A. Johnson
  • R. L. Seeley
  • W. C. Cummings

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Detectors
  • Acoustics
  • Analyzers
  • Bandwidth
  • Communication Channels
  • Communication Systems
  • Computer Programming
  • Computer Programs
  • Detection
  • Detectors
  • Frequency Bands
  • Marine Mammals
  • Odontocetes
  • Processing Equipment
  • Reliability
  • Repetition Rate
  • Waveforms

Readers

  • Clinical Trial Research.
  • Phased Array Antenna Design.
  • Radio communications and signal processing.