Title :
Weighted Source Localization in a Underwater Wireless Sensor Array Network
Author :
Ma, Yan ; Fan, Li Chao ; Hu, Yu Hen
Author_Institution :
Coll. of Marine, Northwestern Polytech. Univ, Xi´´an, China
Abstract :
In novel underwater wireless sensor array network architecture (UWSAN), each sensor node is attached to a local sensor array which performs maximum likelihood direction of arrival (DOA) locally. Sensor nodes communicate via acoustic channel and exchange DOA estimate and received target signal energy. Global DOA based localization is combined with energy in a non-linear least square cost function to realize multi-modal target localization. Very promising simulation results demonstrated preliminarily the feasibility of such a new approach for underwater wireless sensor network.
Keywords :
direction-of-arrival estimation; underwater acoustic communication; wireless channels; wireless sensor networks; acoustic channel; global direction of arrival based localization; maximum likelihood direction of arrival estimation; multimodal target localization; nonlinear least square cost function; underwater wireless sensor array network architecture; weighted source localization; Acoustic sensors; Amplitude estimation; Costs; Direction of arrival estimation; Educational institutions; Least squares approximation; Sensor arrays; Synchronization; Underwater acoustics; Wireless sensor networks;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5301024
