Browsing by Keywords "Kernel"
Now showing items 1-6 of 6
-
An adaptive speckle suppression filter for medical ultrasound imaging
(Institute of Electrical and Electronics Engineers, 1995-06)An adaptive smoothing technique for speckle suppression in medical B-scan ultrasonic imaging is presented. The technique is based on filtering with appropriately shaped and sized local kernels. For each image pixel, a ... -
Design of application specific processors for the cached FFT algorithm
(IEEE, 2006-05)Orthogonal frequency division multiplexing (OFDM) is a data transmission technique which is used in wired and wireless digital communication systems. In this technique, fast Fourier transformation (FFT) and inverse FFT ... -
Effect of fractional Fourier transformation on time-frequency distributions belonging to the Cohen class
(Institute of Electrical and Electronics Engineers, 1996-02)We consider the Cohen (1989) class of time-frequency distributions, which can be obtained from the Wigner distribution by convolving it with a kernel characterizing that distribution. We show that the time-frequency ... -
Effective kernel mapping for OpenCL applications in heterogeneous platforms
(Institute of Electrical and Electronics Engineers, 2012-09)Many core accelerators are being deployed in many systems to improve the processing capabilities. In such systems, application mapping need to be enhanced to maximize the utilization of the underlying architecture. Especially ... -
Kernels, inflations, evaluations, and imprimitivity of Mackey functors
(Elsevier, 2008-03-01)Let M be a Mackey functor for a finite group G. By the kernel of M we mean the largest normal subgroup N of G such that M can be inflated from a Mackey functor for G / N. We first study kernels of Mackey functors, and ... -
Radiation characteristics of a 2D parabolic reflector antenna excited by the H-polarized complex source
(IEEE, 2002-09)The aim of this paper is to obtain accurate reference data for relatively large and realistic reflector antenna systems. We concentrate on a parabolic reflector antenna in the H-polarization case. The directive primary ...
