Results 11 to 20 of about 6,835 (292)

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   +2 more sources

Ground-Vegetation Clutter Affects Phyllostomid Bat Assemblage Structure in Lowland Amazonian Forest. [PDF]

open access: yesPLoS ONE, 2015
Vegetation clutter is a limiting factor for bats that forage near ground level, and may determine the distribution of species and guilds. However, many studies that evaluated the effects of vegetation clutter on bats have used qualitative descriptions ...
Rodrigo Marciente   +2 more
doaj   +2 more sources

How Does Ground Clutter Affect CloudSat Snowfall Retrievals Over Ice Sheets?

open access: yesIEEE Geoscience and Remote Sensing Letters, 2019
International audienceCloudSat has provided the first spaceborne snowfall observations in polar regions. Nevertheless, CloudSat retrievals may be affected by ground clutter even if the snowfall rate at the surface is estimated from the reflectivity ...
Cyril Palerme   +2 more
exaly   +2 more sources

A Circular Fitting Clutter Suppression Algorithm Based on ISAC for Low Altitude UAVs [PDF]

open access: yesSensors
During the perception process of low-altitude unmanned aerial vehicles (UAVs), interference from strong static clutter generated by the ground and buildings is inevitable.
Qi Liu   +8 more
doaj   +2 more sources

Ground Clutter Suppression with Dual-threshold Controlled Method for Airborne Weather Radar

open access: yesLeida xuebao, 2013
In this paper, a new method of dual-threshold controlled adaptive clutter suppression is proposed for airborne weather radar which is operated in wind shear mode.
Han Yan-fei, Wu Ren-biao, Li Hai
doaj   +2 more sources

Analysis of Bistatic Ground Clutter and Applications to Target Plotting [PDF]

open access: yesRadioengineering, 2018
This article presents analysis and parametrization of the bistatic ground clutter which is important from the point of view of the modelling/generating of bistatic clutter, and subsequent developing of the new suppression techniques.
J. Pidanic, K. Juryca, A. M. Kumar
doaj   +1 more source

Recognition of Ground Clutter in Single-Polarization Radar Based on Gated Recurrent Unit

open access: yesRemote Sensing
A new method is proposed for identifying ground clutter in single-polarization radar data based on the gated recurrent unit (GRU) neural network. This method needs five independent input variables related to radar reflectivity structure, which are the ...
Jiaxin Wang   +3 more
doaj   +2 more sources

Improved Cycle-Consistency Generative Adversarial Network-Based Clutter Suppression Methods for Ground-Penetrating Radar Pipeline Data

open access: yesRemote Sensing
Ground-penetrating radar (GPR) is a widely used technology for pipeline detection due to its fast detection speed and high resolution. However, the presence of complex underground media often results in strong ground clutter interference in the collected
Yun Lin   +4 more
doaj   +2 more sources

Observations of anomalous propagation over waters near Sweden [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
Radio waves propagating in the atmosphere are affected by the prevailing atmospheric state. The state of the atmosphere can cause radio waves to refract more or less towards the ground.
L. Norin
doaj   +1 more source

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