Abstract
The safety of submerged buoy is higher than traditional buoy. The most important problem for submerged buoy is that signal will be attenuated greatly due to ocean wave fluctuation and seawater. On the basis of ocean wave model, propagation characteristics of electromagnetic wave in seawater channel for submerged buoy is analyzed in this letter. It includes the propagation properties of electromagnetic wave in seawater and across the air-sea interface. The results show that the VHF frequency band, first order sea level and water depth of less than 10 cm are acceptable for submerged buoy.
Highlights
Marine information construction is in the stage from Digital Ocean to Smart Ocean
The most important problem for submerged buoy is that signal will be attenuated greatly due to ocean wave fluctuation and seawater
On the basis of ocean wave model, propagation characteristics of electromagnetic wave in seawater channel for submerged buoy is analyzed in this letter
Summary
Marine information construction is in the stage from Digital Ocean to Smart Ocean. The study of ocean sensors is blooming [1] [2], because it is the main method to forecast and monitor marine environment with advantages of all-weather, long-term and fixed-point [3]. A submerged buoy is attractive because of long-term potential and higher security. It is already an important development direction of marine sensors [4]. Many existing literatures have investigated the propagation characteristics of traditional buoy communication channel [9] [10] [11], but the discussion about channel of submerged buoy is very limited. We focus on the seawater channel characteristics for submerged buoy.
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