Accession Number : AD0700364

Title :   THE NOISE IMMUNITY OF AN ELEMENTARY SIGNAL DURING PHASE-SHIFT KEYING,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Volynkin,A. I.

Report Date : 17 OCT 1969

Pagination or Media Count : 15

Abstract : Fluctuation noise may cause errors in the reception of phase-shift-keyed signals. The effect of noise level and clipping threshold (at the phase-detector output) on the probability of such errors is theoretically investigated. It is assumed that an additive Gaussian narrow-band noise is present at the IF-amplifier output. Formulas are derived for probabilities of spurious symbol, reversed (positive instead of negative or vice versa) symbol, and missing symbol. From these formulas, curves are plotted which show the above probabilities as functions of the signal-to-noise ratio and clipping threshold. The results are intended for designing phase-shift keying systems with erasing channel.

Descriptors :   (*PHASE MODULATION, NOISE(RADIO)), INFORMATION THEORY, SIGNAL-TO-NOISE RATIO, TELEGRAPH SIGNALS, USSR

Subject Categories : Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE