Accession Number : AD0691017

Title :   ADAPTIVE MULTICHANNEL RECEPTION OF BINARY SIGNALS,

Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF ENGINEERING

Personal Author(s) : Shawaf,Bassim

Report Date : 1968

Pagination or Media Count : 140

Abstract : The dissertation considers the optimization problem of adaptive multichannel reception of binary signals which are corrupted multiplicatively by random amplitude parameters with no known a priori distributions, and additively by white Gaussian noise processes of known spectral densities which we allow to be different among the channels. A distinction is made between two modes of operation: 'multiple processing,' in which the unknown amplitude parameters are estimated and used 'adaptively' to adjust weighting factors in a composite decision rule, and based on this, a decision is made within each observation interval; the other, in which the processing is carried out independently at each receiver, arriving at an ultimate decision using 'majority logic' combining. This latter mode is found to yield consistently higher error probability but may be simpler in implementation than the former in that the requirement for estimation is obviated. (Author)

Descriptors :   (*ADAPTIVE COMMUNICATIONS, DIGITAL SYSTEMS), OPTIMIZATION, NOISE(RADIO), DECISION THEORY, LOGIC CIRCUITS, ERRORS, THESES, SIGNALS

Subject Categories : Cybernetics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE