نتایج جستجو برای: side lobe canceller

تعداد نتایج: 265719  

Journal: :The Journal of the Institute of Image Information and Television Engineers 1999

2013
Esther Krook-Magnuson Caren Armstrong Mikko Oijala Ivan Soltesz

Temporal lobe epilepsy is the most common type of epilepsy in adults, is often medically refractory, and due to broad actions and long-time scales, current systemic treatments have major negative side-effects. However, temporal lobe seizures tend to arise from discrete regions before overt clinical behaviour, making temporally and spatially specific treatment theoretically possible. Here we rep...

Journal: :Liver cancer 2017
Masamitsu Kumon

The definition and extent of the human caudate lobe in the liver is unclear, and thus, the anatomy of the caudate lobe was studied using 23 corrosion liver casts, with special reference to the portal venous and biliary branches. These branches and their ramification type in the caudate lobe showed that this lobe includes: (1) the Spiegel lobe; (2) the paracaval portion; and (3) the caudate proc...

2011
Mridula Malhotra

The paper is based upon the performance of various w indows in designing FIR Filter. The cosine hyperbolic w indow has been used to design a better FIR Filter in terms of ripple ratio, side-lobe roll off ratio and main-lobe w idth w ith its advantages of no power series expansion in frequency domain hence need less hardware. The spectral characteristic of cosh window is compared with other wind...

Journal: :EURASIP J. Adv. Sig. Proc. 2004
Stuart W. A. Bergen Andreas Antoniou

A method for the design of ultraspherical window functions that achieves prescribed spectral characteristics is proposed. The method comprises a collection of techniques that can be used to determine the three independent parameters of the ultraspherical window such that a specified ripple ratio and main-lobe width or null-to-null width along with a user-defined side-lobe pattern can be achieve...

2014
KANG YANG JING SU YUE LANG SHU-PING LIU JIAN YIN

The present study describes the case of a 27-year-old, right-handed female with bilateral mesial temporal lobe epilepsy. Electroencephalogram (EEG) monitoring from implanted electrodes displayed two different and independent onsets on the two sides of the mesial temporal structures, which specifically included clinical generalized tonic clonic seizure (GTCS) discharges originating from the left...

2013
N. K. Mittal Poornima Raikwar

The antenna is the basic part or the back bone of the wireless communication. It is mainly used as device to transmit and receive signal. To get better facility from this device it is necessary to modify or synthesize the geometric configuration or the other parameter of the device. This modification of the parameter of the antenna for getting our desired requirement is known as antenna synthes...

2015
Mawia A. Hassan

Ultrasound imaging is one of the important noninvasive technique that using in medical diagnosis. Unfortunately the far field beam pattern in ultrasound is a sinc function which has a better main-lobe (the resolution of ultrasound imaging) and high side-lobe about 13dB down from the maximum on axis value (the contrast of ultrasound imaging).The result for that is one of a famous artifact in med...

Journal: :IEEE Trans. Communications 2003
Rickard Nilsson Frank Sjöberg James P. LeBlanc

We present a narrowband interference (NBI) canceller that suppresses spectral leakage in an orthogonal frequency-division multiplexing (OFDM)-based system caused by a narrowband (NB) signal. In our scenario, we assume that the spectrum of the NB signal is within the spectrum of the OFDM signal. This can be the case, e.g., on digital subscriber lines (DSL) and in new unlicensed frequency bands f...

2006
Z. Qi

A combined three-microphone voice activity detector (VAD) and noise-canceling system is studied to enhance speech recognition in an automobile environment. A previous experiment clearly shows the ability of the composite system to cancel a single noise source outside of a defined zone. This paper investigates the performance of the composite system when there are frequently moving noise sources...

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