General models for performance representation and surveillance coverage


  1. Jousselme, A.-L.
  2. Maupin, P.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN)
The aim of this technical note is to present a general approach for coverage definition based on performance measures extracted from a ROC x d space. The d dimension represents the distance from the sensor and permits consideration of the performance degradation according to the distance. A general definition of coverage is proposed which involves two generic opera tors, over the sensors on the one hand and over the positions of interest on the other hand. The operators can be selected among standard operators such as min, max, mean, count , et c. Leaving the selection of these operators to the user is a means of taking into account the user 's state of mind while designing the sensor network. For instance, a pessimistic (rather cautious) user will use a min operator over the set of sensors meaning that the set of sensors covering a given position will perform as good even at its worst element . The different meanings corresponding to the different operators will be developed in future work. The coverage notion thus defined is aimed at being used as a criterion in an optimization algorithm for the sensor placement problem. The generic feature of the proposed coverage definition makes it suit able to any kind of sensor, be it physical (hard) or human (soft). The genera l model of performance accounting for both the probability of detection and of false alarm is richer than classical models based on the probability of detection only. Moreover, the ROC space can represent the pe
Report Number
DRDC-VALCARTIER-TN-2013-471 — Technical Note
Date of publication
01 Dec 2013
Number of Pages
Electronic Document(PDF)

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