Signal processing, tracking, and resource allocation for highly maneuvering closely spaced targets

Abhijit Sinha; Thiagalingam Kirubarajan; Yaakov Bar-Shalom

doi:10.1117/12.392009

13 July 2000 Signal processing, tracking, and resource allocation for highly maneuvering closely spaced targets

Abhijit Sinha, Thiagalingam Kirubarajan, Yaakov Bar-Shalom

Proceedings Volume 4048, Signal and Data Processing of Small Targets 2000; (2000) https://doi.org/10.1117/12.392009
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

In this paper a novel signal processor combined with a tracker/radar resource allocator based on the Interacting Multiple Model Probabilistic Data Association (IMMPDA) estimator is presented for tracking highly maneuvering, closely spaced targets. An advanced monopulse processing technique, which uses the Maximum Likelihood (ML) approach and yields separate angle measurements for two targets in the same radar beam and same range cell, i.e., they are unresolved, is developed. This processing results in a significant improvement, in terms of tracking performance, over techniques using the monopulse ratio for the same problem. The standard monopulse ratio technique of extracting angles yields a single merged measurement when the targets are unresolved, resulting in track coalescence. The signal processor and tracker were coupled with a radar resource allocator to minimize the radar resources required to track the target while maintaining a low track loss and ensuring high estimation accuracies.

Citation Download Citation

Abhijit Sinha, Thiagalingam Kirubarajan, and Yaakov Bar-Shalom "Signal processing, tracking, and resource allocation for highly maneuvering closely spaced targets", Proc. SPIE 4048, Signal and Data Processing of Small Targets 2000, (13 July 2000); https://doi.org/10.1117/12.392009

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