Results 51 to 60 of about 25,983 (199)

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

Deep Learning‐Based MultiSource Satellite Data Fusion and Downscaling for Tropical Cyclone Wind Fields

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract High‐resolution observations of ocean surface wind (OSW) are crucial for analyzing and forecasting tropical cyclones; however, current data are insufficient. While data sets such as the Cross‐Calibrated Multiplatform (CCMP) and ERA5 provide gap‐free wind fields, their 25 km resolution and tendency to underestimate cyclone wind speeds limit ...
Enze Zhang, Hui Su, Pak Wai Chan, Chengxing Zhai, Wensheng Zhou, Weifan Xu, Mingyuan Hu, Xingyi Li, Yuming Jia, Yinyu Song   +9 more
wiley   +1 more source

Accurate Analysis of Target Characteristic in Bistatic SAR Images: A Dihedral Corner Reflectors Case

Sensors, 2017
The dihedral corner reflectors are the basic geometric structure of many targets and are the main contributions of radar cross section (RCS) in the synthetic aperture radar (SAR) images.
Dongyang Ao, Yuanhao Li, Cheng Hu, Weiming Tian   +3 more
doaj   +1 more source

Metasurface Effect on the Performance of Planar Antennas for Wireless Communications

Radio Science, Volume 60, Issue 11, November 2025.
Abstract This paper demonstrates the performance enhancement of a conventional planar antenna by incorporating metasurface (MTS) layer using a proposed unit‐cell array. The impact of MTS unit‐cell density on bit‐error‐rate (BER) and channel capacity (CC) in a point‐to‐point microwave link is investigated.
Amenah Shabeeb Kamil, Esraa Mousa Ali, Mohammad Alibakhshikenari, Norbahiah Misran, Mohammad Tariqul Islam, Bal Virdee, Dion Mariyanayagam, Nisar Ahmad Abbasi, Nasr Rashid, Taha A. Elwi   +9 more
wiley   +1 more source

AIRBORNE INTERFEROMETRIC SYNTHETIC APERTURE RADAR

Научный вестник МГТУ ГА, 2016
This article gives a brief description of the interferometric SAR mode. It gives a description and the main characteristics of some airborne interferometric SAR systems.
E. E. Nechaev, K. S. Deryabin
doaj  

A Novel Method for Reservoir Outflow Simulation Based on Spearman Rank Correlation Between Satellite‐Derived Water Elevations and Model‐Simulated Reservoir Storage

Water Resources Research, Volume 61, Issue 11, November 2025.
Abstract Accurate simulation of reservoir outflow is essential for integrated water resource management. However, the limited availability of operational data for reservoirs often hinder the accuracy of outflow simulations. Satellite remote sensing, combined with water balance approaches, provides an effective solution for calculating outflows. However,
Yunye Feng, Lihua Xiong, Peng Shu, Jiabo Yin, Shuang Li, Mengran Tang, Xiongfeng Bai   +6 more
wiley   +1 more source

Phaseless Multistatic Synthetic Aperture Radar Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Multistatic phaseless synthetic aperture radar (SAR) is a novel imaging modality that offers advantages in reduced hardware complexity, operability at high frequencies, robustness, jamming resistance, and improved accuracy and resolution.
Bariscan Yonel, Nazia Choudhury, Birsen Yazici   +2 more
doaj   +1 more source

Leveraging Earth Observation Data to Monitor Boat‐Based Recreational Fishing

Fish and Fisheries, Volume 26, Issue 6, Page 1065-1074, November 2025.
High‐resolution satellite imagery was applied to monitor daily patterns of recreational fishing vessels during a temporary fishing ban within a MPA. The satellite detections revealed fine‐scale spatio‐temporal trends not captured by AIS, including a sharp increase in vessel presence immediately after the ban was lifted and a concentration of activity ...
Javier Menéndez‐Blázquez, Mara Segovia, David March   +2 more
wiley   +1 more source

Autonomous Navigation Airborne Forward-Looking SAR High Precision Imaging with Combination of Pseudo-Polar Formatting and Overlapped Sub-Aperture Algorithm

Remote Sensing, 2013
Autonomous navigation airborne forward-looking synthetic aperture radar (SAR) observes the anterior inferior wide area with a short cross-track dimensional linear array as azimuth aperture.
Xueming Peng, Yanping Wang, Wen Hong, Weixian Tan, Yirong Wu   +4 more
doaj   +1 more source

Multimodal Mamba with multitask learning for building flood damage assessment using synthetic aperture radar remote sensing imagery

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 26, Page 4401-4424, 7 November 2025.
Abstract Most post‐disaster damage classifiers perform best when destructive forces leave clear spectral or structural signatures. However, these signatures are often subtle or absent after inundation, where damage may be nonstructural and difficult to detect.
Yu‐Hsuan Ho, Ali Mostafavi
wiley   +1 more source