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A New Distributed Constant False Alarm Rate Detector, Hamid Amirmehrabi, R. Viswanathan
A New Distributed Constant False Alarm Rate Detector, Hamid Amirmehrabi, R. Viswanathan
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A new constant false alarm rate (CFAR) test termed signal-plus-order statistic CFAR (S+OS) using distributed sensors is developed. The sensor modeling assumes that the returns of the test cells of different sensors are all independent and identically distributed. In the S+OS scheme, each sensor transmits its test sample and a designated order statistic of its surrounding observations to the fusion center. At the fusion center, the sum of the samples of the test cells is compared with a constant multiplied by a function of the order statistics. For a two-sensor network, the functions considered are the minimum of the order …
Distributed Detection With Multiple Sensors: Part I—Fundamentals, Ramanarayanan Viswanathan, Pramod K. Varshney
Distributed Detection With Multiple Sensors: Part I—Fundamentals, Ramanarayanan Viswanathan, Pramod K. Varshney
Articles
In this paper, basic results on distributed detection are reviewed. In particular, we consider the parallel and the serial architectures in some detail and discuss the decision rules obtained from their optimization based on the Neyman–Pearson (NP) criterion and the Bayes formulation. For conditionally independent sensor observations, the optimality of the likelihood ratio test (LRT) at the sensors is established. General comments on several important issues are made including the computational complexity of obtaining the optimal solutions, the design of detection networks with more general topologies, and applications to different areas.