Comparison of Four Filtering Options for a Radar Tracking Problem,

Abstract

Four different filtering options are considered for the problem of tracking an exoatmospheric ballistic target with no maneuvers. The four filters are an alpha-beta filter, an augmented alpha-beta filter, a decoupled Kalman filter, and a fully-coupled extended Kalman filter. These filters are listed in the order of increasing computational complexity. All of the filters can track the target with some degree of accuracy. While the pure alpha-beta filter appreciably lags the other filters in performance for this problem, its augmented version is very competitive with the extended Kalman filter under benign conditions. Perhaps the most surprising result is that under all conditions examined, the decoupled (linear) Kalman filter, which is at least an order of magnitude less computationally complex, performs nearly identical to the coupled, extended Kalman filter. Four different filtering options are considered for the problem of tracking an exoatmospheric ballistic target with no maneuvers. The four filters are an alpha-beta filter, an augmented alpha-beta filter, a decoupled Kalman filter, and a fully-coupled extended Kalman filter. These filters are listed in the order of increasing computational complexity. All of the filters can track the target with some degree of accuracy. While the pure alpha-beta filter appreciably lags the other filters in performance for this problem, its augmented version is very competitive with the extended Kalman filter under benign conditions. Perhaps the most surprising result is that under all conditions examined, the decoupled (linear) Kalman filter, which is at least an order of magnitude less computationally complex, performs nearly identical to the coupled, extended Kalman filter.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1997
Accession Number
ADA329021

Entities

People

  • John A. Lawton
  • Paul Zarchan
  • Robert J. Jesionowski

Organizations

  • Naval Surface Warfare Center

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Angular Motion
  • Ballistic Missiles
  • Ballistic Trajectories
  • Cartesian Coordinates
  • Computational Complexity
  • Coordinate Systems
  • Covariance
  • Detection
  • Detectors
  • Earth Models
  • Geometry
  • Measurement
  • Models
  • Radar Tracking
  • Steady State
  • Trajectories
  • Two Dimensional

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.