Results 21 to 30 of about 64,214 (203)

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

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

Off-shore wind turbine clutter characteristics and identification in operational C-band weather radar measurements [PDF]

open access: yes, 2017
The aim of this work is to update ground clutter classification methods in weather radar rainfall measurements to more accurately identify clutter pixels from wind farms.
Angulo Pita   +33 more
core   +2 more sources

Ground Clutter Removal in GPR Surveys

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014
In GPR prospecting, strong reflections due to the background material interface can hinder the detection of localized buried scatterers, especially when the targets are close (in terms of probing wavelength) to the interface. Moreover, signals due to objects located outside the investigated domain and occurring in the observation time window may ...
Solimene   +9 more
openaire   +2 more sources

An adaptive detection of spread targets in locally Gaussian clutter using a long integration time [PDF]

open access: yes, 2012
This paper deals with the problem of detecting a collision target in ground clutter, using a long integration time. A single reception channel being available, classical space time adaptive processing (STAP) cannot be used. After range processing, ground
Goy, Philippe   +2 more
core   +1 more source

The SIMCA algorithm for processing Ground Penetrating Radar data and its use in locating foundations in demolished buildings [PDF]

open access: yes, 2011
—The main challenge of ground penetrating radar GPR) based foundation detection is to have an accurate image analysis method. In order to solve the detection problem a system level analysis of the issues involved with the recognition of foundations ...
Cockshott, W.P.   +2 more
core   +1 more source

Impact of scene decorrelation on geosynchronous SAR data focusing [PDF]

open access: yes, 2015
We discuss the effects of the clutter on geosynchronous SAR systems exploiting long integration times (from minutes to hours) to counteract for two-way propagation losses and increase azimuth resolution.
Broquetas Ibars, Antoni   +3 more
core   +2 more sources

Analysis of Bistatic Ground Clutter

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. The analysis of the bistatic radar has been an active area of research for almost a decade now.
Pidanic, Jan   +2 more
openaire   +2 more sources

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

Intelligent Suppression Method for Ionospheric Clutter Based on Clustering and Greedy Strategy

open access: yesLeida xuebao, 2020
Clutter is a term used for unwanted echoes in electronic systems, particularly in reference to radars. Such echoes are typically returned from ground, sea, rain, animals/insects, chaff, and atmospheric turbulences, and can cause serious performance ...
Yinsheng WEI, Jianyu ZHOU, Rongqing XU
doaj   +1 more source

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