Accession Number : AD0635105

Title :   A PORTABLE SIGNAL SIMULATOR AND DECOMMUTATOR FOR PULSE POSITION MODULATION TELEMETRY.

Descriptive Note : Instrumentation papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Poirier, J. Leon

Report Date : MAY 1966

Pagination or Media Count : 30

Abstract : This report describes the operation of a Pulse Position Modulation telemetry signal simulator and a decommutator that are used for testing and calibrating payloads for Trailblazer II vehicles. The simulator generates dual polarity Pulse Duration Modulation or Pulse Position Modulation modulating signals of several widths. The decommutator performs the functions of decommutation, PPM to PDM conversion, and frame-synchronization signal generation. The units are designed to operate at the standard commutation rate of 900 samples per second with a frame rate of 20 frames per second. (Author)

Descriptors :   (*TELEMETER SYSTEMS, *PULSE POSITION MODULATION), TELEMETERING DATA, SIMULATORS, SIGNAL GENERATORS, COMMUTATORS, DEMODULATORS, TEST EQUIPMENT, CALIBRATION, SOUNDING ROCKETS

Subject Categories : Test Facilities, Equipment and Methods
      Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE