Results 31 to 40 of about 4,257,836 (266)
Numerical study on signatures of atmospheric convective cells in radar images of the ocean
, 1999 Current and wind variations at the ocean surface can give rise to a modulation of the sea surface roughness and thus become visible in radar images. The discrimination between radar signatures of oceanic and atmospheric phenomena can be quite difficult ...
Susanne Ufermann +5 more
core +2 more sources
Considering spatiotemporal evolutionary information in dynamic multi‐objective optimisation
CAAI Transactions on Intelligence Technology, EarlyView., 2023 Abstract Preserving population diversity and providing knowledge, which are two core tasks in the dynamic multi‐objective optimisation (DMO), are challenging since the sampling space is time‐ and space‐varying. Therefore, the spatiotemporal property of evolutionary information needs to be considered in the DMO.
Qinqin Fan +3 more
wiley +1 more source
The Radiometric Measurement Quantity for SAR Images [PDF]
, 2013 A Synthetic Aperture Radar (SAR) system measures among other quantities the terrain radar reflectivity. After image calibration, the pixel intensities are commonly expressed in terms of radar cross sections (for point targets) or as backscatter ...
Döring, Björn, Schwerdt, Marco
core +1 more source
Remote Sensing, 2022 In the remote sensing field, synthetic aperture radar (SAR) is a type of active microwave imaging sensor working in all-weather and all-day conditions, providing high-resolution SAR images of objects such as marine ships.
Zequn Sun +4 more
doaj +1 more source
Oil Spill SAR Image Segmentation via Probability Distribution Modeling
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Segmentation of marine oil spills in synthetic aperture radar (SAR) images is a challenging task because of the complexity and irregularities in SAR images. In this work, we aim to develop an effective segmentation method which addresses marine oil spill
Fang Chen +4 more
doaj +1 more source
International Journal of Digital Earth, 2023 An intelligent single radar image de-raining method based on unsupervised self-attention generative adversarial networks is proposed to improve the accuracy of wave height parameter inversion results.
Li Wang +3 more
doaj +1 more source
Remote Sensing, 2023 The shadow statistical method (SSM) used for extracting the significant wave height (SWH) from X-band marine radar images was further investigated because of its advantage of not requiring an external reference for calibration.
Yanbo Wei +5 more
doaj +1 more source
Remote Sensing, 2022 Large-scale and periodic remote sensing monitoring of marine raft aquaculture areas is significant for scientific planning of their layout and for promoting sustainable development of marine ecology.
Yi Zhang +3 more
doaj +1 more source
Ocean Wind and Wave Measurements Using X-Band Marine Radar: A Comprehensive Review
Remote 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 +1 more source
Sensors, 2008 This paper provides a comprehensive review of the use of Synthetic Aperture Radar images (SAR) for detection of illegal discharges from ships. It summarizes the current state of the art, covering operational and research aspects of the application.
Konstantinos N. Topouzelis
doaj +1 more source