DocumentCode
2826347
Title
A Wave Directional Spectrum Buoy Using ARGOS
Author
Ezraty, R. ; Ollitrault, M. ; Ayela, G.
Author_Institution
CNEXO, Centre Oceénologique De Bretagne, France
fYear
1983
fDate
Aug. 29 1983-Sept. 1 1983
Firstpage
258
Lastpage
261
Abstract
A 2.5-meter diameter, heave pitch and roll buoy, has been developed by CNEXO and NEREIDES Company. The ARGOS satellite system is used for data transmission. To be compatible with the ARGOS message length, raw data had to be processed on-board. This led us to use a digital band pass recursive filter technique, to obtain estimates of energy and mean direction in 19 selected period bands. Measurements at sea (
up to 9 meters) are presented herein. With its one year autonomy and ARGOS transmission and positioning capabilities, this buoy should prove useful to oceanographers world-wide.
up to 9 meters) are presented herein. With its one year autonomy and ARGOS transmission and positioning capabilities, this buoy should prove useful to oceanographers world-wide.Keywords
Band pass filters; Diesel engines; Digital filters; Fast Fourier transforms; Frequency estimation; Instruments; Oceans; Radio transmitters; Recursive estimation; Sea measurements;
fLanguage
English
Publisher
ieee
Conference_Titel
OCEANS '83, Proceedings
Conference_Location
San Francisco, CA, USA
Type
conf
DOI
10.1109/OCEANS.1983.1151997
Filename
1151997
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