Tracking of two closely spaced objects using monopulse measurements
Atef Isaac, Xin Zhang, Peter Willett, Yaakov Bar‐Shalom · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2005
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.