Results 111 to 120 of about 648,996 (229)

Automatic target recognition by means of polarimetric ISAR images: a model matching based algorithm

open access: yes, 2008
Automatic target recognition (ATR) is generally the reason why ISAR imaging systems are employed. Moreover, the use of fully polarimetric radar systems in radar imaging applications such as SAR and ISAR has enhanced both image quality and classification ...
L. Demi   +21 more
core   +1 more source

Polarimetric Calibration for Ground-based Synthetic Aperture Radar based on Point Target Approach

open access: yesJurnal Elkomika
ABSTRAK Kalibrasi polarimetri (PolCal) dari citra radar aperture sintetis berbasis darat (GB SAR) sangat penting dalam aplikasi analisis spasial empiris.
NURUL CHASANAH   +5 more
doaj   +1 more source

Introducing Partial Polarimetric Layers into a Curvelet-based Change Detection [PDF]

open access: yes, 2010
In this article a new change detection approach for polarimetric SAR data is presented. The further development of an already published change detection approach based on Curvelet transform for single polarized SAR images is combined with partial ...
Roth, Achim   +2 more
core  

Polarimetric Retrieval of Raindrop Size Distribution: Double‐Moment Normalization Approach and Machine Learning Techniques

open access: yesGeophysical Research Letters
Retrieving raindrop size distribution (DSD) is essential to understanding precipitation processes. Conventional approaches based on polarimetric radar (e.g., polynomial regression) struggle to accurately capture the inherent nonlinearity between DSD ...
Kyuhee Shin   +3 more
doaj   +1 more source

Adaptive polarimetric target detection with coherent radar

open access: yes, 2000
A constant false alarm rate (CFAR) adaptive polarimetric generalized likelihood ratio test (GLRT) detector has been proposed for the coherent detection of radar targets against a Gaussian background and its performance has been successfully characterized.
BUCCIARELLI, Tullio   +7 more
core   +1 more source

Polarimetric optimization for clutter suppression in spectral polarimetric weather radar

open access: yes, 2017
For the polarimetric-Doppler weather radar, sometimes there are artifacts caused by radar system itself or external sources displaying in the radar plan position indicator (PPI).
Russchenberg, H.W.J. (author)   +2 more
core  

Research of seasonal changes of forest vegetation in Baikal region on polarimetric ALOS PALSAR data

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2017
Relevance of the work is caused by the necessity to create and to develop the techniques of mapping forest vegetation using satellite radar data. The main aim of the research is to study the possibility of classifying the coniferous and mixed forests of ...
Irina Ivanovna Kirbizhekova   +1 more
doaj   +2 more sources

Polarimetric radar images

open access: yes, 2014
Ce manuscrit concerne une synthèse de mes travaux de recherches menés au sein de l'Onera sur les images polarimétriques radar de télédétection. Un radar polarimétrique permet de mesurer un plus grand nombre de paramètres qu'un radar monocanal en exploitant la nature vectorielle de l'onde électromagnétique.
openaire   +1 more source

A Non-Parametric Texture Descriptor for Polarimetric SAR Data with Applications to Supervised Classification [PDF]

open access: yes, 2014
The paper describes a novel representation of polarimetric SAR (PolSAR) data that is inherently non-parametric and therefore particularly suited for characterising data in which the commonly adopted hypothesis of Gaussian backscatter is not ...
Jäger, Marc, Reigber, Andreas
core  

Comparison of Methods for Classification of Land Cover using Poarimetric SAR data [PDF]

open access: yes, 2006
Polarimetric SAR data are coherent by nature of the principle of operation. However, most often incoherent ap-proaches are chosen for the post-processing in order to apply conventional averaging and statistical methods.
Krogager, Ernst   +4 more
core  

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