Results 11 to 20 of about 8,136,705 (229)
A New Method of Rainfall Detection from the Collected X-Band Marine Radar Images [PDF]
To control the quality of X-band marine radar images for retrieving information and improve the inversion accuracy, the research on rainfall detection from marine radar images is investigated in this paper.
Yanbo Wei +5 more
doaj +7 more sources
A Method to Correct the Influence of Rain on X-Band Marine Radar Image
The backscatter of X-band marine radar is contaminated by rain, which limits the estimation of wave parameters from radar images. A new method is proposed to correct the influence of rain on the gray level radar image, based on 1-D complex continuous ...
Zhongbiao Chen +3 more
doaj +4 more sources
An Algorithm for Surface Current Retrieval from X-band Marine Radar Images [PDF]
In this paper, a novel current inversion algorithm from X-band marine radar images is proposed. The routine, for which deep water is assumed, begins with 3-D FFT of the radar image sequence, followed by the extraction of the dispersion shell from the 3-D
Chengxi Shen +4 more
doaj +6 more sources
On the Reliability of Surface Current Measurements by X-Band Marine Radar [PDF]
Real-time quality-controlled surface current data derived from X-Band marine radar (MR) measurements were evaluated to estimate their operational reliability.
Katrin G. Hessner +3 more
doaj +5 more sources
Estimation of Sea Surface Current from X-Band Marine Radar Images by Cross-Spectrum Analysis
The cross-spectral correlation approach has been used to estimate the wave spectrum from optical and radar images. This work aims to improve the cross-spectral approach to derive current velocity from the X-band marine radar image sequence, and evaluate ...
Zhongbiao Chen +4 more
doaj +3 more sources
The Effect of Radar Ocean Surface Sampling on Wave Spectrum Estimation Using X-Band Marine Radar
In this paper, the effect of the ocean surface sampling process on the ocean wave spectral estimation using the Cartesian Fourier transform (CFT) method on X-band marine radar data is investigated.
Al-Abbass Al-Habashneh +3 more
doaj +4 more sources
In recent years, marine plastic pollution has seen increased coverage in the public interest and research due to a greater understanding of the scale and impact of plastic pollution within the marine environment. Considering the hazard that plastic waste
Morgan David Simpson +8 more
doaj +1 more source
Rare-Earth-Sulfur Surface Modification Enables SiC Ceramics for Low-Frequency Electromagnetic Wave Absorption in Extreme Environments. [PDF]
By altering surface chemical bonds to prolong relaxation time and shift absorption to lower frequencies, SiC/rare earth–sulfur (RE─S, RE = La, Ce, Pr, Sm, Gd, Er) materials achieve excellent low‐frequency electromagnetic wave absorption under extreme conditions, offering a new direction for designing high‐performance SiC‐based absorbers.
Wu Z +5 more
europepmc +2 more sources
This paper presents a new configuration of a slotted waveguide antenna (SWA) array aimed at the X-band within the desired band of 9.38~9.44 GHz for shipboard marine radars.
Kyei Anim +2 more
doaj +1 more source
Use of X-Band Radars to Monitor Small Garbage Islands
The aim of this work is to verify and demonstrate the possibility of using X-band radars to identify, discriminate, characterize and follow small floating aggregations of marine litter (Small Garbage Islands—SGIs) made up mainly of plastic debris.
Francesco Serafino, Andrea Bianco
doaj +1 more source

