THE IDENTIFICATION OF OVERDAMPED PROCESSES IN THE TIME-DOMAIN

Abstract

The problem of characterizing overdamped systems, from data in the time-domain, by means of exponential functions is studied. Particular attention is given to: (1) the choice of a suitable error criterion based upon performance measures the approximate system is to meet; (2) the choice of weighting functions and their effect on the approximations; and (3) the extension of the orthonormal exponential approximations of Kautz and Huggins to approximations of any asymptotic-order in the s-domain. The spirit of the research carried out is in keeping with the philosophy that the approximate system will replace the actual system in practical analyses. For example, the actual system may be embedded in the forward path of a positional servomechanism. In-3 of the areas of concentration, emphasis is placed on the effects that the asymptotic order will have on the utility of the approxima tions in further analyses.

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Document Details

Document Type
Technical Report
Publication Date
Apr 19, 1963
Accession Number
AD0407687

Entities

People

  • Jerry M. Mendel

Organizations

  • New York University Tandon School of Engineering

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Closed Loop Systems
  • Computational Science
  • Computer Programs
  • Computer Simulations
  • Computers
  • Control Systems
  • Digital Computers
  • Engineering
  • Exponential Functions
  • Frequency
  • Identification
  • Servomechanisms
  • Shape
  • Systems Engineering
  • Time Domain
  • Two Dimensional
  • Weighting Functions

Readers

  • Approximation Theory.
  • Control Systems Engineering.
  • Systems Analysis and Design