نتایج جستجو برای: side lobe canceller
تعداد نتایج: 265719 فیلتر نتایج به سال:
This paper describes the synthesis of digitally excited pencil/flat top dual beams simultaneously in a linear antenna array constructed of isotropic elements. The objective is to generate a pencil/flat top beam pair using the excitations generated by the evolutionary algorithms. Both the beams share common variable discrete amplitude excitations and differ in variable discrete phase excitations...
A COMBINED CHANNEL-MODIFIED ADAPTIVE ARRAY MMSE CANCELLER AND VITERBI EQUALIZER by Richard M Friedman In this thesis, a very simple scheme is proposed which couples a maximum-likelihood sequence estimator (MLSE) with a X-element canceller. The method makes use of the MLSE's channel estimator to modify the locally generated training sequence used to calculate the antenna array weights. This meth...
PURPOSE To assess the ability of neuropsychological tests to determine the side of seizure onset for preoperative assessment in patients with drug-resistant temporal lobe epilepsy. METHODS Twenty-nine consecutive patients diagnosed with temporal lobe epilepsy (TLE), in whom the epileptogenic focus was clearly identified and localized to either the right or left hemisphere. Patients underwent ...
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Adaptive noise canceller (ANC) and independent component analysis (ICA) are powerful tools for separating signals from their mixtures. For better understanding of the mechanism and characteristics of AF, the artifacts were eliminated in the measured signals from atrial. We use ANC to subtract the influences...
In hands-free communications, the speech signal to be transmitted is disturbed by ambient noise and acoustic echo. So, a processing to reduce these disturbances must be performed before transmission. Classical solutions are cascaded structures where the acoustic echo canceller preceeds or follows the noise reduction system. Recently, we have proposed a new joint system where a noise reduction p...
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