Results 81 to 90 of about 6,648 (171)
Ultrasound Imaging Transducer Array with Integrated Apodization
, 2015 A transducer array (802) includes at least one ID array of transducing elements (804). The at least one ID array of transducing elements includes a plurality of transducing elements (904).
Jensen, Jørgen Arendt +3 more
core
Plank function and hamming apodization for GIIRS radiance preprocessing
, 2020 Plank function and hamming apodization for GIIRS Although it is simple, but will be helpful for the beginners on GIIRS L1 data preprocessing and radiance ...
Wei Han
core +1 more source
Comparison of Apodization Geometries for Bidirectional Surface Acoustic Wave Transducers Based on Efficient Track Modelling [PDF]
, 1986 Apodization, or spatial overlap weighting, is a common tap weighting technique for Surface Acoustic Wave filter transducers. The two most common apodization strategies are beam centered and slant centered overlap weighting.
Vigil, Armando J.
core
On the Non-Paraxial Diffraction of the Set of All Possible Stigmatic Pairs of Mirrors
PhotonicsWe present a comprehensive vector diffraction analysis of stigmatic pairs of mirrors derived from closed-form equations that describe all possible aplanatic two-mirror systems.
Rafael G. González-Acuña
doaj +1 more source
Sensors, 2018 Sidelobe reduction is a very primary task for synthetic aperture radar (SAR) images. Various methods have been proposed for broadside SAR, which can suppress the sidelobes effectively while maintaining high image resolution at the same time ...
Min Liu, Zhou Li, Lu Liu
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On Apodization Techniques for Ultra-wideband SAR Imaging
, 2009 Ultra-wideband (UWB) SAR imaging suffers from a number of inherent problems in which the apodization has not been investigated appropriately. This paper presents a discussion on apodization techniques and possibilities to apply these techniques in UWB ...
Vu, Viet Thuy, +2 more
core
International Journal of Biomedical Imaging, 2010 Recently, work in this group has focused on the lateral cosine modulation method (LCM) which can be used for next-generation ultrasound (US) echo imaging and tissue displacement vector/strain tensor measurements (blood, soft tissues, etc.). For instance,
Chikayoshi Sumi
doaj +1 more source
Signal extrapolation by super-spatially variant apodization [PDF]
, 1997 This project is based upon a computer program that utilizes the Super Spatially Variant Apodization Algorithm (Super-SVA) as developed by H. Stankwitz and M. Kosek of the Environmental Research Institute of Michigan.
Hines, Charles R.
core
On the fundamental differences between 2D and 3D models of Coherence Scanning Interferometry
JPhys PhotonicsCoherence scanning interferometry (CSI) is a non-contacting, optical method that is widely used to measure the topography of engineering surfaces. Several linear models of CSI have been proposed in the literature including the elementary Fourier optics ...
Jeremy Coupland
doaj +1 more source
Partially Coherent, Radially Polarized Beam with Annular Apodization
The Scientific World Journal, 2014 Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to ...
C. Mariyal +3 more
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