FEASIBILITY STUDY 19.2KBS IN A 3KHZ CHANNEL.

Abstract

The report describes a study to determine the feasibility of transmitting 19.2 kilobits per second through a schedule 4B line or TAT-2 submarine cable. The technique chosen for study was double sideband, quadrature suppressed carrier, amplitude modulation employing sixteen discrete levels of amplitude. The work performed included design and construction of a laboratory test model of the modem, and tests of the completed modem using various simulated line conditions. Typical of the results obtained in the study was an error probability of 0.005 at 14,400 bits per second at a 30db signal to noise ratio, and with delay simulation in the signal path. Transmission at 19.2 kilobits per second was not obtained, but with further work, as recommended in this report, transmission at 9.6Kb, at an error rate of 0.00001 and possibly 14.4Kb at an error rate of 0.006 is feasible. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1967
Accession Number
AD0657458

Entities

People

  • Adrio L. Vannoni
  • Howard G. Robbins

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Amplitude Modulation
  • Cables
  • Construction
  • Feasibility Studies
  • Laboratory Tests
  • Modulation
  • Probability
  • Sidebands
  • Simulations
  • Submarines
  • Transmitting
  • Underwater Cables

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Radio communications and signal processing.
  • Technical Research and Report Writing.