Analysis of Non-Gaussian Processes Using the Wiener Model of Discrete Nonlinear Systems.

Abstract

Fundamental results developed by Wiener in the 1950's are combined with new work in the area of higher-order statistics to develop and explore a general model for nonlinear stochastic processes. The Wiener model is developed for discrete nonlinear systems and its orthogonality properties are analyzed to characterize its output statistics. An efficient structured procedure for computing the order statistics of the model output is formulated in both the time and frequency domains. Explicit formulas that exploit the structure of the Wiener model are given for computing the cumulants and polyspectra. A necessary condition for a discrete random process to be representable by the Wiener model is discussed. A computationally efficient procedure is given for matching the model output cumulants to estimated cumulants for a given process by minimizing the squared magnitude of the error. Examples of applying this procedure to given sets of data are presented. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA297343

Entities

People

  • Atalla I. Hashad

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computational Science
  • Data Science
  • Electrical Engineering
  • Frequency
  • Frequency Domain
  • Gaussian Processes
  • Information Science
  • Kalman Filters
  • Linear Systems
  • Mathematical Filters
  • Nonlinear Systems
  • Order Statistics
  • Random Variables
  • Signal Processing
  • Statistical Analysis
  • Statistics
  • Stochastic Processes

Fields of Study

  • Mathematics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Statistical inference.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • AI & ML - Machine Learning Algorithms