Results 11 to 20 of about 66,001 (272)

Spatial and temporal dynamics of aufeis in the Tso Moriri basin, eastern Ladakh, India

Permafrost and Periglacial Processes, Volume 34, Issue 1, Page 81-93, January/March 2023., 2023
Abstract Aufeis is a common phenomenon in cold regions of the Northern Hemisphere that develops during winter by successive water overflow and freezing on ice‐covered surfaces. Most studies on aufeis occurrence focus on regions in North America and Siberia, while research in High Mountain Asia (HMA) is still in an exploratory phase.
Dagmar Brombierstäudl, Susanne Schmidt, Marcus Nüsser   +2 more
wiley   +1 more source

Generalization Ability of Deep Learning Algorithms Trained Using SEM Data for Objects Classification

Radio Science, Volume 57, Issue 12, December 2022., 2022
Abstract This paper proposes an efficient method to determine the material of spherical objects and the location of the receiving antenna relative to the object in bi‐static measurements using supervised learning techniques. From a single observation, we compare classification performances resulting from the application of several classifiers on ...
Yasmina Zaky, Nicolas Fortino, Benoit Miramond, Jean‐Yves Dauvignac   +3 more
wiley   +1 more source

Vegetation structure derived from airborne laser scanning to assess species distribution and habitat suitability: The way forward

Diversity and Distributions, Volume 29, Issue 1, Page 39-50, January 2023., 2023
Abstract Ecosystem structure, especially vertical vegetation structure, is one of the six essential biodiversity variable classes and is an important aspect of habitat heterogeneity, affecting species distributions and diversity by providing shelter, foraging, and nesting sites. Point clouds from airborne laser scanning (ALS) can be used to derive such
Vítězslav Moudrý, Anna F. Cord, Lukáš Gábor, Gaia Vaglio Laurin, Vojtěch Barták, Kateřina Gdulová, Marco Malavasi, Duccio Rocchini, Krzysztof Stereńczak, Jiří Prošek, Petr Klápště, Jan Wild   +11 more
wiley   +1 more source

Efficient CNN-based Super Resolution Algorithms for mmWave Mobile Radar Imaging [PDF]

, 2023
In this paper, we introduce an innovative super resolution approach to emerging modes of near-field synthetic aperture radar (SAR) imaging. Recent research extends convolutional neural network (CNN) architectures from the optical to the electromagnetic domain to achieve super resolution on images generated from radar signaling. Specifically, near-field
arxiv   +1 more source

AUGMENTING THE PHILIPPINES’ DOST-ASTI’S POTENTIAL FLOOD EXTENTS MAPPING SERVICE WITH S-BAND NOVASAR-1 IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The Philippines’ Advanced Science and Technology Institute under the Department of Science and Technology (DOST-ASTI) has developed an AI-based and near real-time flood extent mapping service that utilizes C-Band Sentinel-1 SAR images.
J. B. L. C. Dumalag, J. B. L. C. Dumalag, K. L. S. Mariano, K. L. S. Mariano, N. R. Cadiz, N. R. Cadiz, A. E. Retamar, A. E. Retamar, J. C. Aceron, J. C. Aceron, M. M. Felicen, M. M. Felicen, M. C. Gelido, M. C. Gelido   +13 more
doaj   +1 more source

Forward-Looking MIMO-SAR for Enhanced Radar Imaging in Autonomous Mobile Robots

IEEE Access, 2023
Synthetic aperture radar (SAR) techniques are commonly used in spaceborne and airborne side-looking radar imaging applications, where the relatively high platform speeds enable the formation of very long synthetic apertures, which provide images with ...
Adnan Albaba, Marc Bauduin, Tim Verbelen, Hichem Sahli, Andre Bourdoux   +4 more
doaj   +1 more source

Ship Wake Component Detectability on Synthetic Aperture Radar (SAR) [PDF]

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
This study presents an extension to recent ship wake detectability models based on SAR image analysis with machine learning. In contrast to our previous works, we model the detectability of certain wake components individually. The underlying data set is obtained by extracting possible ship wake signatures from SAR imagery by collocation with Automatic
Tings, Björn, Wiehle, Stefan, Jacobsen, Sven   +2 more
openaire   +2 more sources

Coherent Performance Analysis of the HJ-1-C Synthetic Aperture Radar

Leida xuebao, 2014
Synthetic Aperture Radar (SAR) is a coherent imaging radar. Hence, coherence is critical in SAR imaging. In a coherent system, several sources can degrade performance.
Li Hai-ying, Zhang Shan-shan, Li Shi-qiang, Zhang Hua-chun   +3 more
doaj   +1 more source

Comments on rendering synthetic aperture radar (SAR) images

Radar Sensor Technology XXV, 2021
Once Synthetic Aperture Radar (SAR) images are formed, they typically need to be stored in some file format which might restrict the dynamic range of what can be represented. Thereafter, for exploitation by human observers, the images might need to be displayed in a manner to reveal the subtle scene reflectivity characteristics the observer seeks ...
openaire   +3 more sources

A Novel Imaging Scheme of Squint Multichannel SAR: First Result of GF-3 Satellite

Remote Sensing, 2022
The azimuth multichannel synthetic aperture radar (MC-SAR) is an effective means of earth observation due to its high-resolution and wide-swath (HRWS) imaging capability.
Yini Lv, Mingyang Shang, Lihua Zhong, Xiaolan Qiu, Chibiao Ding   +4 more
doaj   +1 more source