Methods for the Real Time Identification of Vehicle Parameters.

Abstract

This report presents two methods for on-line and real time estimation of parameters for application to aircraft, missiles, surface and subsurface marine vehicles and various subsystems. The first method is based on the instrumental variables approach. A new technique for choosing the instrument matrices is developed. This technique ensures algorithm convergence even with bad initial conditions and when the system parameters change. The second method uses the sensitivity functions reductions technique in the maximum likelihood approach to give a viable on-line or real time method. A maximum likelihood approach is also suggested for nonlinear systems. The trade offs of the two methods are discussed. These techniques are applied to simulation and flight test data. Excellent results are obtained in both cases. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1975
Accession Number
ADA032145

Entities

People

  • Naman Gupta
  • W. E. Hall

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Algorithms
  • Convergence
  • Identification
  • Nonlinear Systems
  • Sensitivity
  • Simulations
  • Vehicles

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.