Sequential Detection with Mutual Information Stopping Cost

Details Sequential Detection with Mutual Information Stopping Cost Sequential Detection with Mutual Information Stopping Cost

2011-10-19

arxiv.org/abs/1110.4355v1

Mathematics

Optimization and Control

Scientific paper

This paper formulates and solves a sequential detection problem that involves the mutual information (stochastic observability) of a Gaussian process observed in noise with missing measurements. The main result is that the optimal decision is characterized by a monotone policy on the partially ordered set of positive definite covariance matrices. This monotone structure implies that numerically efficient algorithms can be designed to estimate and implement monotone parametrized decision policies.The sequential detection problem is motivated by applications in radar scheduling where the aim is to maintain the mutual information of all targets within a specified bound. We illustrate the problem formulation and performance of monotone parametrized policies via numerical examples in fly-by and persistent-surveillance applications involving a GMTI (Ground Moving Target Indicator) radar.

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