Title :
Passive-range estimation using dual focused beamformers
Author :
Kim, Ki-Man ; Yang, In-Sic ; Chun, Seung-Yong ; Oh, Won-Tchon
Author_Institution :
Dept. of Radio Sci. & Eng., Korea Maritime Univ., Pusan, South Korea
fDate :
7/1/2002 12:00:00 AM
Abstract :
The passive-range estimation technique using a single focused beamformer has been studied under the sea. However, there are not many more methods in the case of closed multisource environments. In this paper, we propose the technique using dual focused beamformers to estimate the ranges of a closed multisource, and compare the proposed technique with the previous method. The proposed method is verified via computer simulation under the simplified multipath underwater channel model.
Keywords :
acoustic arrays; array signal processing; multipath channels; target tracking; underwater acoustic propagation; closed multisource environments; computer simulation; dual focused beamformers; multipath underwater channel model; passive-range estimation; Acoustic beams; Acoustic signal detection; Computer simulation; Delay estimation; Measurement errors; Position measurement; Random processes; Sea measurements; Sensor arrays; Signal processing;
Journal_Title :
Oceanic Engineering, IEEE Journal of
DOI :
10.1109/JOE.2002.1040946
