نتایج جستجو برای: echo sounding

تعداد نتایج: 34809  

Journal: :Proceedings of the Royal Society of Medicine 1962

Journal: :The Journal of the Acoustical Society of America 1976

1999
Stefan Gustafsson Peter Jax Axel Kamphausen Peter Vary

In this paper we address the problem of acoustic echo cancellation and noise reduction for narrow and wide band telephone applications. We combine a conventional echo canceller with a postfilter implemented in the frequency domain and derive an algorithm for the simultaneous attenuation of residual echo and noise. The main goals are a low level natural sounding background noise without artifact...

Journal: :CoRR 2011
Onur Oktay Götz E. Pfander Pavel Zheltov

ABSTRACT. In many radar scenarios, the radar target or the medium is assumed to possess randomly varying parts. The properties of a target are described by a random process known as the spreading function. Its second order statistics under the WSSUS assumption are given by the scattering function. Recent developments in the operator identification theory suggest a channel sounding procedure tha...

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