Results 61 to 70 of about 1,729,831 (217)

Ultra-High Resolution Imaging Method for Distributed Small Satellite Spotlight MIMO-SAR Based on Sub-Aperture Image Fusion

Sensors, 2021
Small satellite synthetic aperture radar (SAR) has become a new development direction of spaceborne SAR due to its advantages of flexible launch, short development cycle, and low cost.
Fang Zhou, Jun Yang, Lu Jia, Xingming Yang, Mengdao Xing   +4 more
doaj   +1 more source

Textile Metamaterials: Design, Fabrication, and Emerging Applications

Applied Research, Volume 5, Issue 5, October 2026.
Textile metamaterials combine sub‐wavelength electromagnetic structures with textile architectures, enabling flexible and wearable platforms for wave manipulation. This review highlights their evolution, fabrication strategies, electromagnetic characteristics, and emerging applications, while identifying key challenges and opportunities for next ...
Samanta M. de Holanda, Arthur M. da Silva, Thiago F. Santos, Dieter Rahmadiawan, Francisco D. M. Nobre, Jose Heriberto Oliveira do Nascimento, Idalmir de Souza Queiroz Júnior, Antonio Sergio Bezerra Sombra, Humberto D. de Andrade   +8 more
wiley   +1 more source

Optimization Strategies for Multi-Aperture SAR Imaging With High Performance [PDF]

, 2007
Multi-aperture synthetic aperture radar (SAR) systems enable high performance SAR imaging thus meeting the rising demands of future remote sensing applications that conventional SAR cannot fulfill.
Moreira, Alberto, Gebert, Nicolas, Krieger, Gerhard   +2 more
core  

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

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

Downscaling of Tropical Cyclone Surface Wind Fields With a Hybrid Attention Transformer

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract This study employs a Hybrid Attention Transformer‐based super‐resolution model to reconstruct tropical cyclone (TC) surface wind fields. The model downscales coarse‐resolution ERA5 reanalysis data to high‐resolution HWind analyses (1998–2013), increasing the horizontal resolution by a factor of five.
Chunhua Wang, Dazhi Xi, Na He, Shuai Wang, Kekuan Chu   +4 more
wiley   +1 more source

SWOT Observations Reveal Basin‐Scale Reservoir Operating Patterns

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The construction and operation of reservoirs have fundamentally modified the natural hydrograph globally. However, complex seasonal operating patterns remain opaque due to data scarcity, limiting the accuracy of hydrological modeling and water management.
Tan Chen, Jiasheng Li, Shiteng Fang, Pengfei Zhan, Chenyu Fan, Hui Zhang, Chunqiao Song   +6 more
wiley   +1 more source

Four-dimensional SAR Imaging Algorithm Based on Iterative Reconstruction of Magnitude and Phase

Leida xuebao, 2016
Observation data obtained from the Four-Dimensional (4D) Synthetic Aperture Radar (SAR) system is sparse and non-uniform in the baseline-time plane. Hence, the imaging results acquired by traditional Fourier-based methods are limited by high side lobes ...
Ren Xiaozhen, Yang Ruliang
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

First Empirical Assessment of Ice Content From a Himalayan Rock Glacier

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Climate warming and degradation of glaciers and permafrost in High Mountain Asia is threatening the sustainability of the region's natural “water towers” and allied ecosystems and infrastructure. Approximately 25,000 Himalayan rock glaciers exist and, being more resilient to climatic change than glaciers, they represent important freshwater ...
Matthew W. Peacey, Stephan Harrison, Tristram D. L. Irvine‐Fynn, Yan Hu, Karen Anderson, Ruolin Leng, Zhangyu Sun, Lin Liu   +7 more
wiley   +1 more source