USN기반 PDR 센서의 검출 시간차를 이용한 표적 경로 검출 알고리즘

Abstract

Abstract This paper proposes the target path detection algorithm using statistical characteristics of an activated time lag along a moving path of target from a neighboring sensor in PDR(Pulse Doppler Radar) sensor node environment based on USN(Ubiquitous Sensor Network) with a limitation detecting only an existence of moving target. In the proposed algorithm, detection and non-detection time lag obtained from the experimental data are used. The experimental data are through repetitive action of each 500 times about three path scenarios such as passing in between two sensors, moving parallel to two sensors, and turning through two sensors. From this experiments, error detection percentages of three path scenarios are 5.67%, 5.83%, and 7.17%, respectively. They show that the proposed algorithm can exactly detect a target path using the limited PDR sensor nodes. Key Words : Pulse Doppler Radar, Path Detection Algorithm, Unattended Ground Sensor, USN, NCW Ⅰ. 서 론 현대전은 네트워크 중심전(NCW: Network Centric Warfare) 체계로 발전하고 있다. 탐지, 지휘, 타격 체계 등 여러 전투 요소를 통신 체계로 연계하여 정보의 우월성 확보로 지휘속도 향상, 신속한 작전 전개, 치명적 타격, 생존성 향상 등 전투력을 극대화 시키는 작전수행 개념이다.