The Effect of Analysis Bandwidth on the Accuracy of Measurements and Predictions of Single Degree of Freedom System Behaviour.

Abstract

The accuracy of measurements or predictions of the frequency response of a single degree of freedom system depends on the frequency resolution of the analysis technique. If the ratio of analysis bandwidth to the 3dB bandwidth of the resonance is too great, negative bias errors occur at resonance in estimates of both power spectra levels and transfer function amplitudes. These errors, which have been calculated numerically, are presented and compared with appropriate experimental data. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1979
Accession Number
ADA069569

Entities

People

  • A. W. Walker

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplitude
  • Analyzers
  • Bandwidth
  • Digital Signal Processing
  • Discrete Fourier Transforms
  • Experimental Data
  • Frequency
  • Frequency Response
  • Measurement
  • Modal Analysis
  • Power Spectra
  • Resonance
  • Resonant Frequency
  • Signal Processing
  • Spectra
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Radio communications and signal processing.