NDLI: Data Analysis of a Low-Cost Bathymetry System Using Fishing Echo Sounders

Content Provider	IEEE Xplore Digital Library
Author	Hatanaka, K. Toda, M. Wada, M.
Copyright Year	2007
Description	Author affiliation: Tokyo Univ. of Agric. Setagaya, Tokyo (Hatanaka, K.)
Abstract	The multi-beam echo sounder system with an accurate GPS can provide a detailed view of the seafloor and is successfully utilized in oceanography but its expense makes it impractical for many uses. The authors have therefore presented a low-cost system for surveying shallow sea bottom topography by using a fishing echo sounder in such a way that the many areas of the industry in which the information of the sea depth is required can easily use it to get the information they need. The system is based on sensor network technology, namely Micro Cube, which allows for the collection of the data from the fishing echo sounder via the Internet. However, the data obtained by the present system include noises or errors due to the reflection from bubbles or fishnets. In this paper, data analyses to erase noises or errors from measurements in the present system are discussed using the discrete wavelet transform and statistics. Experiments carried out in Rumoi, on the west coast of Hokkaido, Japan from July 2004 to December 2006 are studied for the examinations of data analyses for practical use.
Starting Page	1
Ending Page	6
File Size	2897956
Page Count	6
File Format	PDF
ISBN	9780933957350
DOI	10.1109/OCEANS.2007.4449181
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-29
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Data analysis Acoustic noise Discrete wavelet transforms Oceanographic techniques Global Positioning System Sea floor Surfaces Sensor systems Acoustic sensors IP networks
Content Type	Text
Resource Type	Article

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