An Application of Parameter Estimation to the Stability and Control of the BQM-147 Unmanned Aerial Vehicle

Abstract

Parameter estimation methods were used to obtain estimates of stability and control derivatives for the Marine Corps BQM-147 Unmanned Air Vehicle. The results from a simple, PC-based linear model and those from a more robust non-linear model, pEst, were compared. A Cramer-Rao bound was used to assess the accuracy of the estimates for both methods. The bounds were high for both the longitudinal case and the lateral-directional case due to the limited maneuvers tested, high levels of noise in the same general frequency range as the control input, and the lack of body-angle data. The linear model failed to provide estimates for the lateral-directional case. Though the results may be used as starting points for a dynamic model of the aircraft it is recommended that the flight test procedures be modified to address the issues raised concerning noise, recorded signals and the need for repeated maneuvers.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1993
Accession Number
ADA268741

Entities

People

  • Patrick J. Quinn

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Airframes
  • Computational Science
  • Control Systems
  • Mainframe Computers
  • Mathematical Models
  • Measurement
  • Personal Computers
  • Physics Laboratories
  • Remotely Piloted Vehicles
  • Research Facilities
  • Space Systems
  • Test And Evaluation
  • United States
  • Unmanned Aerial Vehicles
  • Unmanned Systems

Readers

  • Aviation Science / Aeronautics.
  • Statistical inference.

Technology Areas

  • Autonomy