Results 81 to 90 of about 779,702 (326)

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

Incorporating W‐Band Doppler Velocity Signal Simulator Into COSP2: Model Evaluation Against Ground‐Based Radar Measurement

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 2, February 2026.
Abstract A new signal simulator for Doppler velocity, derived for W‐band cloud profiling radar onboard EarthCARE, is developed and implemented into the Cloud Feedback Model Intercomparison Project Observation Simulator Package version 2 (COSP2). The simulator converts the vertical motion of hydrometeors and cumulus mass flux in global climate models ...
Yuhi Nakamura, Kentaroh Suzuki, Hiroaki Horie   +2 more
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

Identification of Parametric Underspread Linear Systems and Super-Resolution Radar

, 2010
Identification of time-varying linear systems, which introduce both time-shifts (delays) and frequency-shifts (Doppler-shifts), is a central task in many engineering applications.
Kfir Gedalyahu, Senior Member, Waheed U. Bajwa, Yonina C. Eldar   +3 more
core   +4 more sources

Real Heights of SuperDARN F Region Echoes Inferred From Electron Density Measurements by the Rankin Inlet and RISR‐C Radars

Radio Science, Volume 61, Issue 2, February 2026.
Abstract This study is one of the first attempts to estimate statistically the real height of SuperDARN F region echoes in the polar cap. To achieve this, measurements of the electron density in the scattering volume of the Rankin Inlet SuperDARN radar are compared with the electron density profiles measured by the incoherent scatter radar RISR‐C ...
Alexander V. Koustov, Mehdi Ghalamkarian Nejad, Hayden Fast, Pavlo V. Ponomarenko   +3 more
wiley   +1 more source

Classification of unarmed/armed personnel using the NetRAD multistatic radar for micro-Doppler and singular value decomposition features [PDF]

, 2015
In this letter, we present the use of experimental human micro-Doppler signature data gathered by a multistatic radar system to discriminate between unarmed and potentially armed personnel walking along different trajectories.
Fioranelli, Francesco, Griffiths, Hugh, Ritchie, Matthew   +2 more
core   +1 more source

Come from away: Reconstructing a long‐range migratory flight of spruce budworm moths to Newfoundland, Canada Venues de loin : reconstitution d'un vol migratoire de longue distance de tordeuses des bourgeons de l'épinette vers Terre‐Neuve, au Canada

Ecological Entomology, Volume 51, Issue 1, Page 41-58, February 2026.
Lagrangian atmospheric models were used in conjunction with ecophysiological factors to reconstruct the path and meteorological conditions of a long‐range migration flight of spruce budworm moths to Newfoundland, Canada. Moths travelled under high winds and warm temperatures that favoured their migratory flight until encountering cooler temperatures ...
Philippe Barnéoud, Jennie Pearce, Alain Malo, Jean‐Noël Candau   +3 more
wiley   +1 more source

Measuring River Surface Velocity Using UAS‐Borne Doppler Radar

Water Resources Research
Using Unoccupied Aerial Systems (UAS) equipped with optical RGB cameras and Doppler radar, surface velocity can be efficiently measured at high spatial resolution.
Zhen Zhou, Laura Riis‐Klinkvort, Emilie Ahrnkiel Jørgensen, Christine Lindenhoff, Monica Coppo Frías, Alexander Rietz Vesterhauge, Daniel Haugård Olesen, Makar Lavish, Alexey Dobrovolskiy, Alexey Kadek, Niksa Orlic, Tomislav Grubesa, Luka Drmić, Henrik Grosen, Sune Nielsen, Daniel Wennerberg, Viktor Fagerström, Jenny Axén, David Gustafsson, Peter Bauer‐Gottwein   +19 more
doaj   +1 more source

Radar Estimates of Surfzone Dissipation Drive a Morphological Evolution Model

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The dissipation of wave energy is important to nearshore circulation and beach profile evolution. Here, radar measurements of wave dissipation at the water surface across the surfzone are used to estimate water velocities and sediment transport in the lower water column to drive an energetics model for morphological change.
Florian Grossmann, Michael Streßer, Britt Raubenheimer, Steve Elgar   +3 more
wiley   +1 more source

New airborne Doppler radar

Eos, Transactions American Geophysical Union, 1990
U.S. and French research establishments will build and share an airborne Doppler radar that they will design to gather data on large‐scale storm structures and global atmospheric processes.The University Corporation for Atmospheric Research (UCAR), Boulder, Colo., the Centre National d'Etudes des Telecommunications (CNET) and the Institut National des ...
openaire   +1 more source