Results 41 to 50 of about 19,525 (263)

A framework of rapid regional tsunami damage recognition from post-event TerraSAR-X imagery using deep neural networks [PDF]

, 2018
Near real-time building damage mapping is an indispensable prerequisite for governments to make decisions for disaster relief. With high-resolution synthetic aperture radar (SAR) systems, such as TerraSAR-X, the provision of such products in a fast and ...
Adriano, Bruno, Bai, Yanbing, Gao, Chang, Koch, Magaly, Koshimura, Shunichi, Mas, Erick, Singh, Sameer   +6 more
core   +1 more source

Improved Tropical Cyclone Wind Estimation Using Dual‐Polarization C‐Band SAR and Machine Learning

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Tropical cyclones (TCs) characterized by extreme wind speeds present severe hazards to human life and infrastructure. Spaceborne synthetic aperture radar (SAR) has emerged as a critical observational tool for TCs, owing to its all‐weather, high‐resolution imaging capabilities.
Chaogang Guo, Weihua Ai, Xianbin Zhao, Zhancai Liu, Hongwei Yang, Jiajia Tang   +5 more
wiley   +1 more source

Classification of Segments in PolSAR Imagery by Minimum Stochastic Distances Between Wishart Distributions

, 2013
A new classifier for Polarimetric SAR (PolSAR) images is proposed and assessed in this paper. Its input consists of segments, and each one is assigned the class which minimizes a stochastic distance. Assuming the complex Wishart model, several stochastic
da Silva, Wagner Barreto, Freitas, Corina da Costa, Frery, Alejandro C., Sant'Anna, Sidnei João Siqueira   +3 more
core   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

Microwave Vision Three-dimensional SAR Experimental System and Full-polarimetric Data Processing Method

Leida xuebao
Three-Dimensional (3D) Synthetic Aperture Radar (SAR) holds great potential for applications in fields such as mapping and disaster management, making it an important research focus in SAR technology. To advance the application and development of 3D SAR,
Xiaolan QIU, Yitong LUO, Shujie SONG, Lingxiao PENG, Yao CHENG, Qiancheng YAN, Songtao SHANGGUAN, Zekun JIAO, Zhe ZHANG, Chibiao DING   +9 more
doaj   +1 more source

Application of Deep Networks to Oil Spill Detection Using Polarimetric Synthetic Aperture Radar Images

Applied Sciences, 2017
Polarimetric synthetic aperture radar (SAR) remote sensing provides an outstanding tool in oil spill detection and classification, for its advantages in distinguishing mineral oil and biogenic lookalikes.
Guandong Chen, Yu Li, Guangmin Sun, Yuanzhi Zhang   +3 more
doaj   +1 more source

Range-Point Migration-Based Image Expansion Method Exploiting Fully Polarimetric Data for UWB Short-Range Radar [PDF]

, 2018
Ultrawideband radar with high-range resolution is a promising technology for use in short-range 3-D imaging applications, in which optical cameras are not applicable. One of the most efficient 3-D imaging methods is the range-point migration (RPM) method,
Ayumi Yamaryo, Shouhei Kidera, Tatsuo Takatori, Tetsuo Kirimoto   +3 more
core   +2 more sources

Characterization of Mass Wasting Events on Lunar Maria Using Mini‐RF Radar Observations

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Evidence of mass wasting has been observed on the Moon since at least the Apollo era. Surface features indicative of mass wasting processes are traditionally characterized geomorphologically using visible images. In this study, we aim to better understand mass wasting features via their radar properties, which can provide insights into the ...
S. L. Pérez‐Cortés, A. M. Bramson, E. G. Rivera‐Valentín, C. A. Nypaver, G. W. Patterson, A. K. Virkki, P. A. Taylor, R. Melikyan   +7 more
wiley   +1 more source

Forest total and component biomass retrieval via GA-SVR algorithm and quad-polarimetric SAR data

International Journal of Applied Earth Observations and Geoinformation, 2023
A reliable evaluation of biomass is a vital prerequisite for realizing the international goal of “emission peak and carbon neutrality”. It is critical to estimate the components of forest biomass, for ecosystem management.
Jianmin Shi, Wangfei Zhang, Armando Marino, Peng Zeng, Yongjie Ji, Han Zhao, Guoran Huang, Mengjin Wang   +7 more
doaj   +1 more source

Crop classification by polarimetric SAR [PDF]

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003
Polarimetric SAR-data of agricultural fields have been acquired by the Danish polarimetric L- and C-band SAR (EMISAR) during a number of missions at the Danish agricultural test site Foulum during 1995. The data are used to study the classification potential of polarimetric SAR data using the Wishart distributed covariance matrix.
H. Skriver, M.T. Svendsen, F. Nielsen, A. Thomsen   +3 more
openaire   +1 more source