Accession Number : AD0855721

Title :   Portable Infrared Pulse Modulation Communication System.

Descriptive Note : Technical memo.,

Corporate Author : NAVY UNDERWATER SOUND LAB NEW LONDON CT

Personal Author(s) : Catalano, Genard T.

Report Date : 27 JAN 1966

Pagination or Media Count : 20

Abstract : An experimental model of a portable infrared communication set has been designed and tested with a GaAs diode as the infrared source. The type of modulation used is Pulse Frequency Modulation (PFM), commonly referred to as Pulse Position Modulation (PPM). Pulse Modulation in portable infrared equipment is attempted in order to eliminate the bias requirements needed for the infrared diode in CW Modulation. This report analyzes and describes some of the basic theory and practice of a Pulse Modulation scheme applied to an infrared communication link. (Author)

Descriptors :   (*INFRARED COMMUNICATIONS, PULSE POSITION MODULATION), LASERS, GALLIUM ARSENIDES, SEMICONDUCTOR DIODES, INFRARED RECEIVERS, FREQUENCY MODULATION.

Subject Categories : Infrared Detection and Detectors
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE