Accession Number : AD0713922

Title :   The Use of a Wideband Photorecording Instrument to Study Pulse Distortions,

Corporate Author : ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER WASHINGTON D C

Personal Author(s) : Ogorodneichuk,I. F. ; Solokha,V. P.

Report Date : 01 SEP 1970

Pagination or Media Count : 10

Abstract : The operating range in wire communications channels used to transmit telemechanical information is limited by the higher frequencies. This makes it possible to select that frequency range in which information transmission conditions are optimum: minimum attenuation, linearity of amplitude and phase-frequency characteristics, and minimum distortion level present in the given communications channel. Using existing methods, the nature and distribution of distortions in the accepted operating frequency range were studied with measuring instruments having a selective range of 50-100-1000 hertz. Selected measurements were made at different frequencies with the results registered by indicating instruments or by oscillogram recording in photographic film. Oscillograph recording of distortions in a broad frequency range significantly covering the possible band of the communications channel used, with an appropriate oscillogram processing, provides a full picture of distortion nature and distribution through the entire possible frequency. (Author)

Descriptors :   (*TELEMETER SYSTEMS, PHASE DISTORTION), BROADBAND, PHOTOGRAPHY, PULSE ANALYZERS, USSR

Subject Categories : Telemetry

Distribution Statement : APPROVED FOR PUBLIC RELEASE