Amplitude Dependent Errors in the Calculation of Wiener Kernels.

Abstract

The calculation of Wiener kernels via the cross-correlation methods of Lee and Schetzen for use in nonlinear system identification is examined. The calculated kernels are shown to depend upon the power of the input approximating a white noise probe. This dependence is due to amplitude related nonlinearities such as thresholds in the system, and is also a consequence of the finite computations used to derive the kernels. Data obtained from investigations into near field seismic energy propagation is used to calculate kernels identifying the propagation medium, and the effects of the input power level on the calculated kernels are shown. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA047764

Entities

People

  • Gary Robert Ellis

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Bandwidth
  • Correlation Techniques
  • Cross Correlation
  • Data Science
  • Department Of Defense
  • Engineering
  • Error Analysis
  • Frequency Response
  • Gaussian Processes
  • Linear Systems
  • Measurement
  • Near Field
  • Nonlinear Systems
  • Power Levels
  • White Noise

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Calculus or Mathematical Analysis