Algorithm for Detection of Current and Water-depth using X-band Marine Radar

Ahn, Kyungmo; Oh, Chaeyoun; Chun, Hwusub

doi:10.1016/j.proeng.2015.08.369

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Cited by 2 publications

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“…The estimation of significant wave heights using SNR and peak period has been proposed by Ahn et al (2014) and Ahn et al (2015). A case with low energy reception due to low energy backscattering of smooth surface waves is considered to significantly underestimate the significant wave height.…”

Section: Peak Periodmentioning

confidence: 99%

Estimation of Significant Wave Heights from X-Band Radar Using Artificial Neural Network

Park

Ahn

et al. 2020

J Korean Soc Coast Ocean Eng

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Section: Peak Periodmentioning

confidence: 99%

Estimation of Significant Wave Heights from X-Band Radar Using Artificial Neural Network

Park

Ahn

et al. 2020

J Korean Soc Coast Ocean Eng

Self Cite

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Automatic Detection and Analysis of Rip Currents at Haeundae Beach using X-band Marine Radar

Oh¹,

Ahn²,

Cheon³

2019

J Korean Soc Coast Ocean Eng

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The observation system has been developed to investigate the rip currents at Haeundae beach using Xband marine radar. X-band radar system can observe shape, size, and velocity of rip currents, which is difficult to obtain through field observation by conventional device. Algorithms which automatically detect locations, shapes, and magnitudes of rip currents were developed using time averaged X-band radar sea clutter images. X-band sea clutter images are transformed through 3D FFT into 2D wave number spectrum and frequency spectrum. Rip current velocities were estimated using differences in wave-number spectra and wave frequency spectra due to Doppler shift. The algorithm was verified by drift experiments. At Haeundae beach, the radar system exactly located the rip currents and found to be sustained for 1-2 days at fixed locations.

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Algorithm for Detection of Current and Water-depth using X-band Marine Radar

Cited by 2 publications

References 2 publications

Estimation of Significant Wave Heights from X-Band Radar Using Artificial Neural Network

Estimation of Significant Wave Heights from X-Band Radar Using Artificial Neural Network

Automatic Detection and Analysis of Rip Currents at Haeundae Beach using X-band Marine Radar

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