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http://dx.doi.org/10.5573/ieek.2013.50.7.258

Target Detection Algorithm Based on Seismic Sensor for Adaptation of Background Noise  

Lee, Jaeil (Dept. of Ocean System Engineering, Jeju Nat'l University)
Lee, Chong Hyun (Dept. of Ocean System Engineering, Jeju Nat'l University)
Bae, Jinho (Dept. of Ocean System Engineering, Jeju Nat'l University)
Kwon, Jihoon (Samsung Thales Co., Ltd.)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.7, 2013 , pp. 258-266 More about this Journal
Abstract
We propose adaptive detection algorithm to reduce a false alarm by considering the characteristics of the random noise on the detection system based on a seismic sensor. The proposed algorithm consists of the first step detection using kernel function and the second step detection using detection classes. Kernel function of the first step detection is obtained from the threshold of the Neyman-Pearon decision criterion using the probability density functions varied along the noise from the measured signal. The second step detector consists of 4 step detection class by calculating the occupancy time of the footstep using the first detected samples. In order to verify performance of the proposed algorithm, the detection of the footsteps using measured signal of targets (walking and running) are performed experimentally. The detection results are compared with a fixed threshold detector. The first step detection result has the high detection performance of 95% up to 10m area. Also, the false alarm probability is decreased from 40% to 20% when it is compared with the fixed threshold detector. By applying the detection class(second step detector), it is greatly reduced to less than 4%.
Keywords
감시정찰 센서네트워크;무인 지상 센서;진동센서;적응형 탐지;
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Times Cited By KSCI : 1  (Citation Analysis)
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