نتایج جستجو برای: مدل echo
تعداد نتایج: 150396 فیلتر نتایج به سال:
We compared contrast-enhanced MRI (CeMRI) with the most widely used imaging techniques for myocardial infarct (MI) diagnosis, SPECT and Echo, in unselected patients with chronic coronary artery disease (CAD). Two blinded operators assessed scars on MRI, SPECT and Echo images using a 16-segments LV model. We studied 105 consecutive patients: 50 had Q-wave MI (Q-MI), 19 non Q-wave MI or rest angi...
The proportionate normalized least-mean-square (PNLMS) algorithms were developed in the context of network echo cancellation. They outperform the normalized leastmean-square (NLMS) algorithm only when the echo path is sparse. Unfortunately, realworld network echo path may not be that sparse sometimes, while the acoustic echo paths are usually less sparse. The improved PNLMS (IPNLMS) algorithm i...
An overview of acoustic echo cancellation systems is presented. First the basics of echo’s, type of echo’s , why echo canceller are required and what are the difference between echo canceller are explained then the application where they can be used is discussed.. This paper presents applications of acoustic echo control and shows most recent solutions. For some selected applications (LEM) resu...
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