Accession Number : AD0683936

Title :   INFLUENCE OF INTERFERENCES AND DISTORTIONS ON THE TRANSMISSION OF DISCRETE INFORMATION WITH THE HELP OF FREQUENCY MODULATION,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Volfbein,S. P.

Report Date : 28 FEB 1968

Pagination or Media Count : 10

Abstract : A method is proposed for calculating fringe distortions during transmission of discrete signals by frequency modulations for a wide class of interference. The use of this method is illustrated by derivation of formulas for fringe distortions which appear when there are momentary disruptions in the channel and when a low carrier frequency is used. Derivation of the principal formulas is based on the concept of the complex signal. A complex signal corresponding to an oscillation S(t) is defined as a signal with a spectrum equal to zero on negative frequencies and coinciding with double the spectrum for the oscillation S(t) on positive frequencies.

Descriptors :   (*RADIOFREQUENCY INTERFERENCE, *FREQUENCY MODULATION), DISTORTION, COMMUNICATION AND RADIO SYSTEMS, USSR

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE