Accession Number:

ADA071764

Title:

An Adaptive Filter System for Radio Communications.

Descriptive Note:

Master's thesis,

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF NAVAL ARCHITECTURE AND MARINE ENGINEERING

Personal Author(s):

Report Date:

1963-05-01

Pagination or Media Count:

73.0

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

Subject Categories:

  • Cybernetics
  • Magnetic and Electric Field Detection and Detectors
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE