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Entropy, Vol. 20, Pages 470: Noise Enhanced Signal Detection of Variable Detectors under Certain Constraints

Entropy, Vol. 20, Pages 470: Noise Enhanced Signal Detection of Variable Detectors under Certain Constraints

Entropy doi: 10.3390/e20060470

Authors: Ting Yang Shujun Liu Wenguo Liu Jishun Guo Pin Wang

In this paper, a noise enhanced binary hypothesis-testing problem was studied for a variable detector under certain constraints in which the detection probability can be increased and the false-alarm probability can be decreased simultaneously. According to the constraints, three alternative cases are proposed, the first two cases concerned minimization of the false-alarm probability and maximization of the detection probability without deterioration of one by the other, respectively, and the third case was achieved by a randomization of two optimal noise enhanced solutions obtained in the first two limit cases. Furthermore, the noise enhanced solutions that satisfy the three cases were determined whether randomization between different detectors was allowed or not. In addition, the practicality of the third case was proven from the perspective of Bayes risk. Finally, numerous examples and conclusions are presented.

Authors:   Yang, Ting ; Liu, Shujun ; Liu, Wenguo ; Guo, Jishun ; Wang, Pin
Journal:   Entropy
Volume:   20
edition:   6
Year:   2018
Pages:   470
DOI:   10.3390/e20060470
Publication date:   17-Jun-2018
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