Accession Number : ADP004622

Title :   The Effect of Quantization on the Dynamic Range of Adaptive Processors,

Corporate Author : HUGHES AIRCRAFT CO EL SEGUNDO CALIF SPACE AND COMMUNICATIONS GROUP

Personal Author(s) : Cherrette,A. R. ; O'Connor,J. F. ; Chang,D. C. D.

Report Date : JAN 1985

Pagination or Media Count : 13

Abstract : In many adaptive array designs the adaptive algorithm is implemented digitally and the element weighting is quantized. The error incurred when quantizing element weights gives rise to a degradation in the dynamic range performance of an adaptive processor. This phenomenon was studied with an experimental adaptive array that implements the least mean square (LMS) algorithm. Quantization effects on the dynamic range of the adaptive processor were measured, and a theoretical relationship between quantization and dynamic range is formulated. (Author)

Descriptors :   *ANTENNA ARRAYS, *PROCESSING EQUIPMENT, *ADAPTIVE CONTROL SYSTEMS, ALGORITHMS, DYNAMIC RANGE, LEAST SQUARES METHOD, QUANTIZATION, ERRORS

Distribution Statement : APPROVED FOR PUBLIC RELEASE