Design and Performance Analysis of Energy-Aware Distributed Detection Systems with Multiple Passive Sonar Sensors

Kim, Song-Geun; Hong, Sun-Mog

Journal of the Korea Institute of Military Science and Technology 2010;13(1):9-21.

Song-Geun Kim, Sun-Mog Hong

다중 수동 소나 센서 기반 에너지 인식 분산탐지 체계의 설계 및 성능 분석

김송근, 홍순목

경북대학교 전자전기컴퓨터학부

Abstract

In this paper, optimum design of distributed detection is considered for a parallel sensor network system consisting of a fusion center and multiple passive sonar nodes. Nonrandom fusion rules are employed as the fusion rules of the sensor network. For the nonrandom fusion rules, it is shown that a threshold rule of each sensor node has uniformly most powerful properties. Optimum threshold for each sensor is investigated that maximizes the probability of detection under a constraint on energy consumption due to false alarms. It is also investigated through numerical experiments how signal strength, false alarm probability, and the distance between three sensor nodes affect the system detection performances.

Key Words: Distributed Detection, Passive Sonar, Fusion Rule, Energy-Awareness