Results 51 to 60 of about 71,530 (301)

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

Revisiting measurement and representation errors in geophysical sciences: From classical collocation‐based measurement error estimation to “sampling‐aware field‐informed retrieval”, a method that explicitly accounts for representation errors

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Geophysical fields exhibit structure across a wide range of scales such that it is insufficient to define errors as deviations from a reference truth. This work takes filtering into account to define measurement, model, and representation errors. A new measurement‐error estimation method, called sampling‐aware field‐informed retrieval (SAFIR), is ...
Dominik Jacques
wiley   +1 more source

Human and bird detection and classification based on Doppler radar spectrograms and vision images using convolutional neural networks

International Journal of Advanced Robotic Systems, 2021
The study investigated object detection and classification based on both Doppler radar spectrograms and vision images using two deep convolutional neural networks.
Jnana Sai Abhishek Varma Gokaraju, Weon Keun Song, Min-Ho Ka, Somyot Kaitwanidvilai   +3 more
doaj   +1 more source

Progress in existing and planned MST radars [PDF]

, 1986
Radar systems are described which use two different wind measuring techniques: the partial-reflection drift technique and the mesosphere-stratosphere-troposphere (MST) or Doppler beam-swing radar technique.
Vanzandt, T. E.
core   +1 more source

Turbulence‐resolving simulations of Hurricane Laura (2020): Insights into extreme winds and eyewall turbulence

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Using high‐resolution turbulence‐resolving simulations, we analyze the wind structure in the eyewall of Hurricane Laura (2020) and validate the results with observational data. Our findings show significant variations in wind speed and turbulence, especially above 50 m.
Miguel Sanchez‐Gomez, Georgios Deskos, Julie K. Lundquist   +2 more
wiley   +1 more source

A 1D Cascaded Denoising and Classification Framework for Micro-Doppler-Based Radar Target Recognition

Remote Sensing
Micro-Doppler signatures play a crucial role in capturing target features for the radar classification task, and the time–frequency distribution method is widely used to represent micro-Doppler signatures in many applications including human activities ...
Beili Ma, Baixiao Chen
doaj   +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

The first operation and results of the Chung-Li VHF radar [PDF]

, 1986
The Chung-Li Very High Frequency (VHF) radar is used in the dual-mode operations, applying Doppler beam-swinging as well as the spaced-antenna-drift method. The design of the VHF radar is examined.
Chao, J. K., Chu, Y. S., Fu, I. J., Kuo, F. S., Liu, C. H., Rottger, J.   +5 more
core   +1 more source

Doppler W-band polarization diversity space-borne radar simulator for wind studies [PDF]

, 2018
CloudSat observations are used in combination with collocated European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis to simulate spaceborne W-band Doppler observations from slant-looking radars.
A. Battaglia, A. Battaglia, A. Illingworth, R. Dhillon   +3 more
core   +2 more sources

Joint modulation of coastal rainfall in Northeast Australia by local and large‐scale forcings

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Spatially heterogeneous rainfall patterns over the coastal regions of northern Queensland are consistent between radar observations and model simulations. Rainfall propagation modulates the average rainfall distribution, leading to inhomogeneous rainfall patterns along the coast.
T. L. Dao, C. L. Vincent, Y. Huang, S. C. Peatman, J. S. Soderholm, C. E. Birch, D. S. Roberts   +6 more
wiley   +1 more source