Application of an Extended Kalman Filter to an Advanced Fire Control System.

Abstract

An extended Kalman Filter is developed to aid the tracking of an air-to-air missile from a maneuvering target aircraft. The filter exploits knowledge of the dominant dynamic effects acting on a missile that is nonthrusting and utilizing a proportional navigation guidance scheme, i.e. accelerations due to aerodynamic forces. It is designed to provide both dynamic tracking estimates in a local inertial frame and estimates of the proportional navigation constant and another pertinent parameter. A feasibility analysis of the filter is conducted. Its performance is compared to a more conventional filter that utilizes a first order GAUSS-Markov random process acceleration model. In addition, an evaluation is made of the filter's capability to recover from large initial errors in state estimates.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA035293

Entities

People

  • Robert N. Lutter

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Algorithms
  • Computer Programs
  • Computer Simulations
  • Computers
  • Control Systems
  • Filters
  • Fire Control Systems
  • Geometry
  • Guidance
  • Kalman Filters
  • Measurement
  • Navigation
  • Operating Systems
  • Proportional Navigation
  • Test And Evaluation

Fields of Study

  • Engineering
  • Physics

Readers

  • Approximation Theory.
  • Missile Defense Systems.
  • Robotics and Automation.