An Adaptive Filter System for Radio Communications.
Abstract
An experimental verification of the continuous adjustment procedure considered by Sakrison is undertaken in this thesis. The adjustment procedure permits design of a filter system by continuous adjustment of k system parameters so that the average error, weighted by a convex error criterion, is minimized. For experimental verification on typical analog equipment, this procedure is applied to the simple, yet typical, problem of separating a specified 'voice' signal from broadband noise. The experimental work to determine the time required for convergence to a near optimum setting, the sensitivity of the system to the initial parameter settings, and the sensitivity of the system to the choice of parameters of the adjustment procedure showed that the adjustment procedure can be carried out on existing analog equipment. Further, since convergence times of well under 30 seconds can be obtained with this system and the system does perform satisfactorily over the required 30 db range in noise power density, it is applicable to use in an adaptive filter system for radio communications. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1963
- Accession Number
- ADA071764
Entities
People
- William Speller Smith Jr
Organizations
- Massachusetts Institute of Technology