15 September 2005 Tracking of two closely spaced objects using monopulse measurements
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The ultimate goal of this paper is to track two closely spaced and unresolved targets using monopulse radar measurements, the quality of such tracking being a determinant of successful detection of target spawn. It explores statistical estimation techniques based on the maximum likelihood criterion and Gibbs sampling, and addresses concerns about the accuracy of the measurements delivered thereby. In particular, the Gibbs approach can deliver joint measurements (and the associated covariances) from both targets, and it is therefore natural to consider a joint filter. The ideas are compared; and amongst the various strategies discussed, a particle filter that operates directly on the monopulse measurements is especially promising.
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Atef Isaac, Atef Isaac, Xin Zhang, Xin Zhang, Peter Willett, Peter Willett, Yaakov Bar-Shalom, Yaakov Bar-Shalom, } "Tracking of two closely spaced objects using monopulse measurements", Proc. SPIE 5913, Signal and Data Processing of Small Targets 2005, 591322 (15 September 2005); doi: 10.1117/12.613126; https://doi.org/10.1117/12.613126

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