DUAL INPUT DESCRIBING FUNCTIONS

Abstract

A study was made of Dual Input Describing Functions (DIDF) for nonlinear elements with a view toward the synthesis problem where the characteristics of the DIDF are specified a priori. The study included a literature survey and an analytical investigation of the DIDF. Improved methods for calculating DIDF's were sought. The problem of defining the DIDF in such a way that is valid for multivated nonlinear elements was also considered and one method of solution is proposed. The effect of changes in the secondary signal waveform on the DIDF for nonlinear elements was also investigated. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 28, 1969
Accession Number
AD0697729

Entities

People

  • Gordon D. Welford

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Closed Loop Systems
  • Computational Science
  • Control Systems
  • Control Systems Engineering
  • Digital Computers
  • Engineering
  • Engineers
  • Feedback
  • Fourier Series
  • Guidance
  • Phase Shift
  • Physics Laboratories
  • Sine Waves
  • Square Waves
  • Waveforms

Fields of Study

  • Engineering

Readers

  • Calculus or Mathematical Analysis
  • Military Logistics and Supply Chain Management