β-cell dysfunction and decreased insulin sensitivity are believed to be two chief mechanisms that participate in deterioration of glycemic control in Type 2 diabetes. Meformin is widely accepted as the first-line oral agent in the treatment of Type 2 diabetes. However, the relative contributions of improved β-cell function and increased insulin sensitivity to reduction in hemoglobin A1c (HbA1c)...

A method has been proposed for blindly estimating the Point Spread Function (PSF) of video data. The PSF’s of the images in a sequence are assumed to be of compact support and hence admit FIR modeling. The zeros (roots) of the Optical Transfer Function (OTF) i.e. the Fourier transform of the PSF are first estimated by locating the singularities of the magnitude of the cross power spectrum. Thes...

are inherently more resistant to impulse noise than single carrier systems, impulse noise can still be a significant problem in many applications including digital television. A number of impulse noise mitigation algorithms are investigated. These use non linear processing on the digital input signals to limit the size of impulses reaching the demodulator. It is shown that when the noise at the...

Digital Images are an important medium to convey visual information. However, digital images are often corrupted by noise. In this paper, an efficient implementation scheme for median filter is proposed, which is used to remove impulse noise from images. So, the resultant image of the filter is the image with reduced impulse noise. Impulse noise reduction is done using the application of the me...

This paper presents a 20 GHz push-push VCO realized by a 10 GHz super-harmonic coupled quadrature oscillator for a quadrature 60 GHz frequency synthesizer. The output nodes are peaked by a tunable second harmonic resonator. The proposed VCO is implemented in 65 nm CMOS process. It achieves a tuning range of 3.5 GHz from 16.1 GHz to 19.6 GHz with a phase noise of −106 dBc/Hz at 1 MHz offset. The...

An adaptive amplitude normalized nonlinear gradient descent (AANNGD) algorithm for the class of nonlinear finite impulse response (FIR) adaptive filters (dynamical perceptron) is introduced. This is achieved by making the amplitude of the nonlinear activation function gradient adaptive. The proposed learning algorithm is suitable for processing of nonlinear and nonstationary signals with a larg...

Random jitter (RJ) is a significant noise component in PLL systems that use ring-based oscillators. In order to estimate RJ, accurate modeling of the VCO phase noise is essential. In this paper, the authors will present how the VCO phase noise they obtained from HSPICE RF and from the Impulse-Sensitivity Function (ISF) method compared to lab measurements, the limitations of the two methods and ...

A method for reducing interblock interference (IBI) in an impulse response Signal transmitted by a communications channel such as a digital subscriber loop (DSL) channel. The method includes computing a time of reference (TOR) based on a windowing function that assumes that the main lobe Segment of the impulse response Signal does not contribute IBI power and that the tail Segments of the impul...

Abstract: Recently a method of model reduction for discrete systems has been proposed in the literature based on a new impulse response Gramian. In this method, the system matrix Ar of a reduced model is computed by approximating the reduced-order impulse response Gramian. The remaining matrices br and cr are obtained so that various initial Markov parameters and time-moments of the original sy...