Title :
Convex joint emitter localization and passive sensor network synchronization
Author :
Jean, Oren ; Weiss, Anthony J.
Author_Institution :
Sch. of Electr. Eng., Tel Aviv Univ., Tel Aviv, Israel
Abstract :
PATENT PENDING. Time-of-arrival (TOA) localization is tightly coupled with sensor time synchronization. Synchronization can be obtained by GPS, atomic clocks or message exchange protocols. All methods affect the energy sources and the synchronization protocols use valuable bandwidth. We present self-synchronized localization algorithms that rely exclusively on TOA measurements performed by the sensor network on passing sources rendering it completely passive. Localization performance is close to that provided by a perfectly synchronized network. Such algorithms can also be used for sensor network synchronization and communication networks in general.
Keywords :
Global Positioning System; atomic clocks; protocols; synchronisation; wireless sensor networks; GPS; Global Positioning System; TOA; atomic clocks; communication networks; convex joint emitter localization; energy sources; message exchange protocols; passive sensor network synchronization; self-synchronized localization algorithms; sensor time synchronizatio; synchronization protocols; time-of-arrival localization; Clocks; Joints; Maximum likelihood estimation; Protocols; Synchronization; Vectors;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012 IEEE 7th
Conference_Location :
Hoboken, NJ
Print_ISBN :
978-1-4673-1070-3
DOI :
10.1109/SAM.2012.6250467