Results 1 to 10 of about 8,136,705 (229)

A Coherent on Receive X-Band Marine Radar for Ocean Observations [PDF]

open access: yesSensors, 2021
Marine radars are increasingly popular for monitoring meteorological and oceanographic parameters such as ocean surface wind, waves and currents as well as bathymetry and shorelines.
Jochen Horstmann   +5 more
doaj   +6 more sources

A Method for Detecting Rainfall From X-Band Marine Radar Images [PDF]

open access: yesIEEE Access, 2020
Currently, X-band marine radar images are commonly utilized to retrieve sea wave parameters. However, the marine radar image usually contains rainfall interference noise, which has an effect on the inversion accuracy of the wave parameters.
Yan Zheng   +3 more
doaj   +5 more sources

Ocean Wind and Wave Measurements Using X-Band Marine Radar: A Comprehensive Review [PDF]

open access: yesRemote Sensing, 2017
Ocean wind and wave parameters can be measured by in-situ sensors such as anemometers and buoys. Since the 1980s, X-band marine radar has evolved as one of the remote sensing instruments for such purposes since its sea surface images contain considerable
Weimin Huang, Xinlong Liu, Eric W. Gill
doaj   +5 more sources

Adaptive Enhancement of X-Band Marine Radar Imagery to Detect Oil Spill Segments [PDF]

open access: yesSensors, 2017
Oil spills generate a large cost in environmental and economic terms. Their identification plays an important role in oil-spill response. We propose an oil spill detection method with improved adaptive enhancement on X-band marine radar systems.
Peng Liu, Ying Li, Jin Xu, Xueyuan Zhu
doaj   +6 more sources

Oil spill identification in X-band marine radar image using K-means and texture feature [PDF]

open access: yesPeerJ Computer Science, 2022
Marine oil pollution poses a serious threat to the marine ecological balance. It is of great significance to develop rapid and efficient oil spill detection methods for the mitigation of marine oil spill pollution and the restoration of the marine ...
Rong Chen   +6 more
doaj   +3 more sources

Wind-Direction Estimation from Single X-Band Marine Radar Image Improvement by Utilizing the DWT and Azimuth-Scale Expansion Method [PDF]

open access: yesEntropy, 2022
In this study, a method based on the discrete wavelet transform (DWT) and azimuth-scale expansion is presented to retrieve the sea-surface wind direction from a single X-band marine radar image.
Huanyu Yu, Hui Wang, Zhizhong Lu
doaj   +2 more sources

Detection performance of an X-band marine radar system for free-flying Asian particolored bats (Vespertilio sinensis). [PDF]

open access: yesPLoS ONE
The rapidly growing number of wind farms is an increasing threat to many bat species and populations worldwide. Monitoring and prediction of bat collision risk requires techniques capable of quantifying bat movements over large spatial areas.
Takahiro Sato, Yoichi Kawaguchi
doaj   +2 more sources

A Novel Scheme for Extracting Sea Surface Wind Information From Rain-Contaminated X-Band Marine Radar Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The presence of rain degrades the performance of sea surface parameter estimation using X-band marine radar. In this article, a novel scheme is proposed to improve wind measurement accuracy from rain-contaminated X-band marine radar data.
Xinwei Chen   +2 more
doaj   +3 more sources

Rain-Contaminated Region Segmentation of X-Band Marine Radar Images With an Ensemble of SegNets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The presence of rain may blur surface wave signatures and cause additional radar backscatter, which negatively affects the performance of ocean remote sensing applications (e.g., ocean surface wind and wave parameter measurement) using X-band marine ...
Xinwei Chen   +3 more
doaj   +3 more sources

A Method for Rainfall Detection and Rainfall Intensity Level Retrieval from X-Band Marine Radar Images

open access: yesApplied Sciences, 2021
Currently, it is a hot research topic to retrieve the wave parameters by using X-band marine radar. However, the rainfall noise usually exists in the collected marine radar images, which seriously interferes with the extraction of the wave parameters. To
Zhizhong Lu, Lei Sun, Ying Zhou
doaj   +3 more sources

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