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Proceedings Paper

Evaluation of IMM filtering for an air defense system application
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Paper Abstract

This paper discusses the potential application of Interacting Multiple Model (IMM) filtering to the multi-radar Air Defense System application. This application includes a wide variety of potential target and radar characteristics. The paper begins with a discussion of the three IMM filter models that have been chosen and the choice of Markov transition matrix under the condition of variable update rate filtering. A comparison is given of the track prediction performance of the IMM method with that of a single model filtering system that uses maneuver detection for gain and covariance adjustment. Results show the IMM approach to be uniformly better than a conventional filter that has been designed for the Air Defense System application. However, the relative improvement of the IMM approach is a strong function of the quality of the radar measurement data. Since data association is a key tracking issue, IMM filtering will be adapted for use as part of a Multiple Hypothesis Tracking System. For this purpose, IMM gating and track scoring expressions are discussed and the methods validated through simulation.

Paper Details

Date Published: 1 September 1995
PDF: 13 pages
Proc. SPIE 2561, Signal and Data Processing of Small Targets 1995, (1 September 1995); doi: 10.1117/12.217717
Show Author Affiliations
M. T. Busch, Hughes Aircraft Co. (United States)
Samuel S. Blackman, Hughes Aircraft Co. (United States)

Published in SPIE Proceedings Vol. 2561:
Signal and Data Processing of Small Targets 1995
Oliver E. Drummond, Editor(s)

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