Results 51 to 60 of about 3,621 (188)

Making Flood Inundation Mapping (FIM) Work for Multiple Users: Improving the Design of FIM for Decision Support

Journal of Flood Risk Management, Volume 19, Issue 3, September 2026.
ABSTRACT Visualizing and communicating flood inundation depth and extent can be valuable for informing decisions related to flood preparedness and disaster response. In the United States, several different types of flood inundation mapping (FIM) exist and a new National Water Model (NWM) FIM product is being rolled out across the country (expected to ...
Kathryn Semmens, Patrick Painter, Rachel Hogan Carr, Keri Maxfield   +3 more
wiley   +1 more source

Improved Clutter Suppression and Detection of Moving Target with a Fully Polarimetric Radar

Remote Sensing
Remote sensing of moving targets, particularly pedestrians on the road, is crucial for advanced driver assistance systems. However, pedestrian detection using the radar system remains an ongoing challenge due to the radar cross section (RCS) of ...
Zhilong Zhao, Zhongkai Wen, Changhu Xue, Zhiying Cui, Xutao Hou, Haibin Zhu, Yaxin Mu, Zongqiang Liu, Zhenghuan Xia, Xin Liu   +9 more
doaj   +1 more source

Anomalies and Recovery of Evaporation Ducts Induced by Typhoons in the Northwest Pacific

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Despite widespread attention on tropical cyclone (TC)‐induced cold wakes, the dynamic recovery of evaporation duct height (EDH) post‐typhoon remains unclear. Using ERA5 data from 338 Northwestern Pacific TCs (2003–2023), we quantify the spatiotemporal evolution of EDH after TC passage.
Xuhang Li, Xiaoping Cheng, Jiayuan Zhang, Jianfang Fei, Xiaogang Huang   +4 more
wiley   +1 more source

A Weather Radar Ground Clutter Suppression Method Using Adaptive Coherent Pulse Integration

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Ground clutter poses a significant challenge to the accuracy of weather radar products, especially for aeroecology monitoring. Operational weather radar commonly employs a fixed coherent pulse integration (CPI) for clutter suppression.
Rui Wang, Huafeng Mao, Kai Cui, Zujing Yan, Yunlong Li, Dongli Wu, Cheng Hu   +6 more
doaj   +1 more source

Detection Capability Improvement of High PRF FM Ranging Airborne Radar with Clutter Rejection [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, the clutter rejection threshold corresponding to the maximum Doppler frequency of mainlobe clutter in high pulse repetition frequency airborne radar with frequency modulation (FM) ranging is proposed.
Ji Hwan Yoon, Jin Ju Won, Ji Eun Roh
doaj   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, Volume 13, Issue 44, 7 August 2026.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Signal Data Stream Parameters Passing Ionospheric Communication Links With Fading Caused by Natural Clutter Phenomena

Radio Science, Volume 61, Issue 8, August 2026.
Abstract This paper explores the impact of natural phenomena on signal data transmission across various ionospheric communication channels. The study focuses on three primary phenomena: meteor trails prevalent in the middle‐ and lower‐latitude ionosphere, bubble and plume structures observed around the equatorial ionosphere, and magnetic‐storm‐induced ...
I. Bronfman, Y. Ben‐Shimol, N. Blaunstein   +2 more
wiley   +1 more source

Analysis of a Pareto Mixture Distribution for Maritime Surveillance Radar

Journal of Electrical and Computer Engineering, 2012
The Pareto distribution has been shown to be an excellent model for X-band high-resolution maritime surveillance radar clutter returns. Given the success of mixture distributions in radar, it is thus of interest to consider the effect of Pareto mixture ...
Graham V. Weinberg, Daniel Finch
doaj   +1 more source

Assessing GNSS Reflectometry for High‐Latitude 3D Ionospheric Imaging

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract This study investigates whether Global Navigation Satellite System Reflectometry (GNSS‐R) measurements from low‐Earth‐orbit (LEO) satellites can improve three‐dimensional (3D) ionospheric electron density imaging, with a focus on high‐latitude regions. Conventional ionospheric tomography is limited by sparse ground‐based receiver coverage over
Brenna Royersmith, Brian Breitsch, Jade Y. Morton   +2 more
wiley   +1 more source

Evaluation of Surface Clutter for Future Geostationary Spaceborne Weather Radar

Atmosphere, 2017
Surface clutter interference will be one of the important problems for the future of geostationary spaceborne weather radar (GSWR). The aim of this work is to provide some numerical analyses on surface clutter interference and part of the performance ...
Xuehua Li, Jianxin He, Chuanzhi Wang, Shunxian Tang, Xiaoyu Hou   +4 more
doaj   +1 more source