Results 41 to 50 of about 55,165 (228)

Back projection algorithm-based GEO SAR real-time quick Look imaging system

The Journal of Engineering, 2019
Geosynchronous earth orbit synthetic aperture radar (GEO SAR) has the advantages of short revisit period and wide observation range. However, compared with low earth orbit SAR (LEO SAR), GEO SAR has the distinct characteristics of long synthetic aperture
Qingjun Zhang, Tengfei Li, Yu Zhu, Zhongjiang Yu, Zegang Ding, Xin Guo, Zheng Lv   +6 more
doaj   +1 more source

Desertification Risk: Bibliometric Analysis and Future Research Directions

Land Degradation &Development, EarlyView.
ABSTRACT Desertification, driven by climatic and anthropogenic factors, is one of the most pressing global environmental challenges, causing significant economic, ecological, and social consequences. A bibliometric analysis was performed to identify research trends and gaps in the desertification risk topic.
Fatima‐Ezzahrae Imam, Daniela Smiraglia, Antonio Pulina, Francesca Assennato, Elisabetta Raparelli, Giovanna Seddaiu   +5 more
wiley   +1 more source

Tri-Frequency Synthetic Aperture Radar for the Measurements of Snow Water Equivalent [PDF]

SWESARR (Snow Water Equivalent Synthetic Aperture Radar and Radiometer) is an airborne instrument developed at the NASA Goddard Space Flight Center for the retrieval of Snow Water Equivalent. SWESARR was specifically designed to measure co-located active
Bonds, Quenton, Brucker, Ludovic, Kielbasa, Chase, Osmanoglu, Batuhan, Perrine, Martin, Racette, Paul, Rincon, Rafael, Seufert, Steve   +7 more
core   +4 more sources

Airborne Circularly Polarized Synthetic Aperture Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, airborne broadband (maximum 400 MHz bandwidth) C-band circularly polarized synthetic aperture radar (SAR) is proposed and developed for further study on airborne compact polarized synthetic aperture radar (CP SAR) system using circular ...
Josaphat Tetuko Sri Sumantyo, Ming Yam Chua, Cahya Edi Santosa, Good Fried Panggabean, Tomoro Watanabe, Bambang Setiadi, Fransiskus Dwikoco Sri Sumantyo, Kengo Tsushima, Karna Sasmita, Agus Mardiyanto, Edy Supartono, Eko Tjipto Rahardjo, Gunawan Wibisono, Muh Aris Marfai, Retnadi Heru Jatmiko, h Sudaryatno, Taufik Hery Purwanto, Barandi Sapta Widartono, Muhammad Kamal, Daniele Perissin, Steven Gao, Koichi Ito   +21 more
doaj   +1 more source

Medicane characteristics from high‐resolution satellite radar observations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study uses high‐resolution observations from satellite synthetic aperture radar (SAR) to reveal that medicanes, cyclones with tropical features in the Mediterranean basin, have dynamical characteristics with attributes comparable with those of tropical cyclones of similar intensities, but smaller outer sizes and Rossby numbers.
Arthur Avenas, Mario Marcello Miglietta, Alexis Mouche, Stavros Dafis, Aurélien Colin, Romain Husson, Emmanouil Flaounas   +6 more
wiley   +1 more source

A robust framework for removing G0 distributed noise from Synthetic Aperture Radar images

Cogent Engineering
Synthetic Aperture Radar (SAR) imagery finds widespread applications across engineering disciplines, encompassing vegetation surveys, biomass estimation, and weather-related investigations.
Rajan M. Ragesh, M. Vinayababu, Suresh Shilpa   +2 more
doaj   +1 more source

PRELIMINARY RESULTS OF ESTIMATING SOIL MOISTURE OVER BARE SOIL USING FULL-POLARIMETRIC ALOS-2 DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Synthetic Aperture Radar (SAR) imaging system is one of the most effective way for Earth observation. The aim of this study is to present the preliminary results about estimating soil moisture using L-band Synthetic Aperture Radar (SAR) data.
A. Sekertekin, A. M. Marangoz, S. Abdikan, M. T. Esetlili   +3 more
doaj   +1 more source

Multichannel False-target Discrimination in SAR Images Based on Sub-aperture and Full-aperture Feature Learning

Leida xuebao, 2021
False targets caused by multichannel Synthetic Aperture Radar (SAR) are similar to a defocused ship in both shape and texture, making it difficult to discriminate in the full-aperture SAR image.
Lin MA, Zongxu PAN, Zhongling HUANG, Bing HAN, Yuxin HU, Xiao ZHOU, Bin LEI   +6 more
doaj   +1 more source

Tracking ocean wave spectrum from SAR images [PDF]

, 1984
An end to end algorithm for recovery of ocean wave spectral peaks from Synthetic Aperture Radar (SAR) images is described.
Beal, R. C., Goldfinger, A. D., Monaldo, F. M., Tilley, D. G.   +3 more
core   +1 more source

Polar‐low track prediction using machine‐learning methods

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Machine‐learning models are developed to produce reliable and efficient forecasts of polar‐low (PL) trajectories 12 hours ahead. A temporal model (RLSTM) benefiting from the rolling‐forecast strategy, improves overall prediction accuracy and is suitable for quick experimentation, while a spatiotemporal model (PL‐UNet), incorporating both historical and
Ziying Yang, Rune Grand Graversen, Filippo Maria Bianchi, Jiping Liu, Ruibo Lei   +4 more
wiley   +1 more source