Accession Number : AD0250211

Title :   AN OPTIMIZATION PROCEDURE FOR A SINGLE-LINK UNI-DIRECTIONAL COMMUNICATION SYSTEM IN THE PRESENCE OF ADDITIVE GAUSSIAN AND IMPULSIVE NOISE AND FOR DETECTION INDEPENDENT OF FADING

Corporate Author : NEW YORK UNIV BRONX SCHOOL OF ENGINEERING AND SCIENCE

Personal Author(s) : KURZ, LUDWIK

Report Date : 30 SEP 1960

Pagination or Media Count : 1

Abstract : The basic problem is considered of transmitting digital information through a noisy channel with minimum probability of error in finite time. the transmitted signals are average-power limited, and the noise is assumed to be additive gaussian and impulsive. the gaussian noise is specified by its power spectrum and the impulsive noise by the statistics of its amplitudes (large variance, zero mean) and probability of occurrence in time (poisson's distribution). both components of noise are assumed to be statistically independent. the theory of efficient equidistant, and nearly equidistant codes is extended to the case of gaussian and impulsive noise. it is shown that a considerable improvement in the reliability of the system can be achieved by slowing down the white gaussian noise spectrum the performance of a system using the repeated equidistant code is optimum from the point of view of reliability and simplicity of the resulting detector. performance results are given for different codes for white gaussian noise and gaussian noise with power spectrum that increases with frequency. a circuit for a simple detector to be used with equidistant and repeated equidistant codes is suggested

Descriptors :   *INFORMATION THEORY, *DETECTORS, CIRCUITS, CODING, DETECTION, DIGITAL SYSTEMS, ERRORS, NOISE, SIGNAL TO NOISE RATIO, SIGNALS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE