Source detection and localization using a multi-mode detector: a Bayesian approach

This paper considers a class of detection/localization problems in which the detector ooers multiple operating modes. The modes diier in their detection performance and geographical coverage: \focused" modes ooer higher detection performance but less coverage area than \broad search" modes. It is assumed that a signal source is to be detected and localized using a sequence of tests, each possibly employing a diierent mode. The goal is to determine a strategy for mode selection in the sequence of tests that will yield optimal payoo in terms of a pre-established criterion. A mathematical model capturing the key characteristics of this situation is proposed and used to develop optimal mode selection strategies.