Results 61 to 70 of about 707,332 (306)

Study on Weather Radar Echo Data Generation Based on DCGAN

IEEE Access, 2019
Doppler weather radar can detect the changes in precipitation clouds for short-term forecasting. In the process of development of Doppler weather radar and weather identification algorithms, some typical Doppler weather radar base data corresponding to ...
Haijiang Wang, Mengqing Gao, Shipeng Hu, Zhaoping Sun, Zili Xu   +4 more
doaj   +1 more source

Investigating the spatiotemporal characteristics of motion fields using three‐dimensional radar echoes to construct an ensemble nowcasting system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The process of developing and validating the ensemble nowcasting system in this study. Abstract In this study, a spatial and temporal analysis of three‐dimensional motion fields was conducted to formulate an ensemble nowcasting scheme. These motion fields were derived from radar data covering the entire volume and were analyzed across space and time ...
Kao‐Shen Chung, Yu‐Chiao Hsu, Yi‐Hao Tsou, Hsin‐Hung Lin   +3 more
wiley   +1 more source

Synthesis of Micro-Doppler Signatures of Human Activities From Different Aspect Angles Using Generative Adversarial Networks

IEEE Access, 2021
In this paper, we propose to produce synthesized micro-Doppler signatures from different aspect angles through conditional generative adversarial networks (cGANs).
Ibrahim Alnujaim, Shobha Sundar Ram, Daegun Oh, Youngwook Kim   +3 more
doaj   +1 more source

Doppler Synthetic Aperture Radar Interferometry: A Novel SAR Interferometry for Height Mapping using Ultra-Narrowband Waveforms [PDF]

, 2017
This paper introduces a new and novel radar interferometry based on Doppler synthetic aperture radar (Doppler-SAR) paradigm. Conventional SAR interferometry relies on wideband transmitted waveforms to obtain high range resolution. Topography of a surface is directly related to the range difference between two antennas configured at different positions.
arxiv   +1 more source

Extraction of Unaliased High-Frequency Micro-Doppler Signature using FMCW radar [PDF]

arXiv, 2022
Micro-Doppler signature is a potent feature that has been used for target identification and micro-motion parameter estimation. The extraction of high frequency micro-Doppler signature from frequency modulated continuous wave (FMCW) radar along with the target range and velocity is the problem considered in this article. The severe aliasing of the high
arxiv  

On the relay propagation of deep convection leading to a heavy rainfall event in a weak‐wind urban environment

Quarterly Journal of the Royal Meteorological Society, EarlyView.
By examining the downstream propagation of convective storms developed along a city belt leading to a heavy rainfall event at a remote distance in East China, this study shows the importance of urban effects interacting with lake/sea breezes in triggering deep convection.
Xiaoling Jiang, Da‐Lin Zhang, Yali Luo
wiley   +1 more source

Dynamic and statistical analysis of giant hail environments in northeast Italy

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The hailstorm of record‐breaking hail size that occurred on July 24, 2023 in NE Italy developed in an unusual environment, characterized by moderate instability but intense southwesterly flow and water‐vapor transport in the mid‐troposphere. A high‐Θe$$ {\varTheta}_{\mathrm{e}} $$ tongue over the Adriatic Sea was lifted above a cold pool and fed the ...
Francesco De Martin, Agostino Manzato, Nicola Carlon, Martin Setvák, Mario Marcello Miglietta   +4 more
wiley   +1 more source

Exploiting the full potential of Doppler lidars: High‐resolution wind‐gust profiling in significant weather

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The evolution of wind gusts is difficult to observe because gusts are short‐lived phenomena that can originate at higher altitudes. During the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL), novel ground‐based remote‐sensing methodologies were applied to measure wind with Doppler lidars in order to provide the ...
Julian Steinheuer, Frank Beyrich, Ulrich Löhnert   +2 more
wiley   +1 more source

Application of S-Transform Random Consistency in Inverse Synthetic Aperture Imaging Laser Radar Imaging

Applied Sciences, 2019
Under the same principle, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length, as the characteristic of multi-resolution, S transform could reduce the influence of the micro-Doppler component and enhance the ...
Bo Zang, Mingzhe Zhu, Xianda Zhou, Lu Zhong, Zijiao Tian   +4 more
doaj   +1 more source

Fusion Detection for Networked Radar Aided by Doppler Information

Leida xuebao, 2023
Compared with single-radar systems, spatially separated networked radar usually has better detection performance due to its advantages of spatial and frequency diversities.
Chang GAO, Fengdeng GU, Junkun YAN, Tianyi JIA, Hongwei LIU   +4 more
doaj   +1 more source