DocumentCode :
3282304
Title :
Submarine Location Estimation via a Network of Detection-Only Sensors
Author :
Zhou, Shengli ; Willett, Peter
Author_Institution :
Dept. of Electr. & Comput. Eng., Connecticut Univ., CT
fYear :
2006
fDate :
22-24 March 2006
Firstpage :
363
Lastpage :
368
Abstract :
It is well known to active-sonar engineers that the reflected signal from a target can be highly aspect-dependent, hence in many cases only receivers located in a particular zone determined by the source/target receive-geometry and the target aspect can detect the return signal. Thus, submarines can hide well from traditional sonar systems. For these low-visibility targets, we propose a target localization paradigm based on a distributed sensor network which consists of low complexity sensors that only report binary detection results. Based on the binary outputs and the positions of the sensors, we develop optimal maximum likelihood and suboptimal line-fitting based estimators, and derive the Cramer-Rao lower bound on estimation accuracy, for both single-source and multi-source settings. Our numerical results verify the feasibility of the proposed estimators. We do not rely on continuous quantities such as signal strength, direction of arrival, time or time-difference of arrival, and instead localize based on discrete detection results which include both false alarms and missed detections.
Keywords :
distributed sensors; maximum likelihood estimation; sonar detection; underwater vehicles; Cramer-Rao lower bound; active-sonar engineer; binary detection; distributed sensor network; optimal maximum likelihood estimator; submarine location estimation; suboptimal line-fitting based estimator; target localization paradigm; Computer networks; Direction of arrival estimation; Maximum likelihood detection; Maximum likelihood estimation; Object detection; Signal detection; Sonar applications; Sonar detection; Sonar measurements; Underwater vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Sciences and Systems, 2006 40th Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
1-4244-0349-9
Electronic_ISBN :
1-4244-0350-2
Type :
conf
DOI :
10.1109/CISS.2006.286493
Filename :
4067834
Link To Document :
بازگشت