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

Cui, Jian and Bachmayer, Ralf and de Young, Brad and Huang, Weimin (2018) Ocean Wave Measurement Using Short-Range K-Band Narrow Beam Continuous Wave Radar. Remote Sensing, 10 (8). ISSN 2072-4292

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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.

Item Type: Article
URI: http://research.library.mun.ca/id/eprint/13704
Item ID: 13704
Additional Information: Memorial University Open Access Author's Fund
Keywords: ocean wave measurement, short-range K-band radar, continuous wave, numerical simulation, wave tank experiment
Department(s): Engineering and Applied Science, Faculty of
Date: 7 August 2018
Date Type: Publication
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