Results 21 to 30 of about 1,478,924 (282)

General space-time clutter model for multi-channel airborne radar

open access: yesThe Journal of Engineering, 2019
Ground clutter of looking-down airborne radar is spread in Doppler because of the platform motion, and thus the interested moving targets may be masked by the ground clutter.
Li Xinzhe   +3 more
doaj   +1 more source

Ground clutter cancellation in incoherent radars: solutions for EISCAT Svalbard radar [PDF]

open access: yesAnnales Geophysicae, 2000
Incoherent scatter radars measure ionosphere parameters using modified Thomson scatter from free electrons in the target (see e.g. Hagfors, 1997). The integrated cross section of the ionospheric scatterers is extremely small and the measurements can ...
T. Turunen   +2 more
doaj   +1 more source

Signal Processing Methods to Improve Ocean Surface Wave Estimation from a High Frequency Surface Wave Radar [PDF]

open access: yes, 2011
High frequency surface wave radars are operated as a remote sensor to measure ocean surface parameters to ranges exceeding 200-300 km from the coastline.
Wang, Wei
core   +6 more sources

A Taxonomy of Clutter Reduction for Information Visualisation [PDF]

open access: yes, 2007
Information visualisation is about gaining insight into data through a visual representation. This data is often multivariate and increasingly, the datasets are very large.
Dix, Alan, Ellis, G.
core   +4 more sources

A probabilistic hypothesis density filter for traffic flow estimation in the presence of clutter [PDF]

open access: yes, 2012
Prediction of traffic flow variables such as traffic volume, travel speed or travel time for a short time horizon is of paramount importance in traffic control.
Romain Billot   +9 more
core   +3 more sources

Forward-Looking Super-Resolution Imaging for Sea-Surface Target with Multi-Prior Bayesian Method

open access: yesRemote Sensing, 2021
Traditional forward-looking super-resolution methods mainly concentrate on enhancing the resolution with ground clutter or no clutter scenes. However, sea clutter exists in the sea-surface target imaging, as well as ground clutter when the imaging scene ...
Weixin Li   +5 more
doaj   +1 more source

Research on Strong Clutter Suppression for Gaofen-3 Dual-Channel SAR/GMTI

open access: yesSensors, 2018
In spaceborne synthetic aperture radar (SAR), moving targets are almost buried in ground clutter due to the wide clutter Doppler spectrum and the restricted pulse repetition frequency (PRF), which increases the difficulty of moving target detection ...
Mingjie Zheng   +5 more
doaj   +1 more source

A Quality Control Concept for Radar Reflectivity, Polarimetric Parameters, and Doppler Velocity [PDF]

open access: yes, 2006
Over the last few years the use of weather radar data has become a fundamental part of various applications like rain-rate estimation, nowcasting of severe weather events, and assimilation into numerical weather prediction models.
Friedrich, Katja   +2 more
core   +1 more source

Mitigation of Ground Clutter in Airborne Bistatic Radar Systems [PDF]

open access: yes2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2020
Space-Time Adaptive Processing is a commonly used technique to mitigate ground clutter reflections from an airborne radar system. It estimates a covariance matrix based on spatial and temporal information, and the estimate is thereafter used to suppress the ground clutter.
Jacob Klintberg   +2 more
openaire   +2 more sources

Deep learning‐based unmanned aerial vehicle detection in the low altitude clutter background

open access: yesIET Signal Processing, 2022
Unmanned aerial vehicles (UAVs), widely used due to their low cost and versatility, pose security and privacy threats, which calls for their reliable recognition at low altitudes.
Zeyang Wu, Yuexing Peng, Wenbo Wang
doaj   +1 more source

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