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Open AccessArticle

Ocean Wave Measurement Using Short-Range K-Band Narrow Beam Continuous Wave Radar

1
Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL A1B 3X5, Canada
2
MARUM, University of Bremen, 28359 Bremen, Germany
3
Department of Physics and Physical Oceanography, Memorial University, St. John’s, NL A1B 3X7, Canada
*
Author to whom correspondence should be addressed.
Remote Sens. 2018, 10(8), 1242; https://doi.org/10.3390/rs10081242
Received: 11 June 2018 / Revised: 31 July 2018 / Accepted: 1 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Ocean Radar)
We describe a technique to measure ocean wave period, height and direction. The technique is based on the characteristics of transmission and backscattering of short-range K-band narrow beam continuous wave radar at the sea surface. The short-range K-band radar transmits and receives continuous signals close to the sea surface at a low-grazing angle. By sensing the motions of a dominant facet at the sea surface that strongly scatters signals back and is located directly in front of the radar, the wave orbital velocity can be measured from the Doppler shift of the received radar signal. The period, height and direction of ocean wave are determined from the relationships among wave orbital velocity, ocean wave characteristics and the Doppler shift. Numerical simulations were performed to validate that the dominant facet exists and ocean waves are measured by sensing its motion. Validation experiments were conducted in a wave tank to verify the feasibility of the proposed ocean wave measurement method. The results of simulations and experiments demonstrate the effectiveness of the short-range K-band narrow beam continuous wave radar for the measurement of ocean waves. View Full-Text
Keywords: ocean wave measurement; short-range K-band radar; continuous wave; numerical simulation; wave tank experiment ocean wave measurement; short-range K-band radar; continuous wave; numerical simulation; wave tank experiment
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MDPI and ACS Style

Cui, J.; Bachmayer, R.; DeYoung, B.; Huang, W. Ocean Wave Measurement Using Short-Range K-Band Narrow Beam Continuous Wave Radar. Remote Sens. 2018, 10, 1242.

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