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Bandwidth expansion

Bandwidth expansion is a technique for widening the bandwidth or the resonances in an LPC filter. This is done by moving all the poles towards the… 
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Papers overview

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2011
2011
In this work, speech signal having information up to 4 kHz is termed as narrowband (NB) speech and the other having information… 
Highly Cited
2009
Highly Cited
2009
Modulation filtering is a class of techniques for filtering slowly-varying modulation envelopes of frequency subbands of a signal… 
2009
2009
High efficiency and linearity can be achieved using Kahn's envelope elimination and restoration (EER) technique. However, when… 
2007
2007
This paper deals with algorithms for determining well performing bandwidth expanding joint source-channel coding (JSCC) systems… 
2007
2007
We consider the problem of broadcasting kldr samples of an independent identically distributed (i.i.d) Gaussian source to two… 
2007
2007
We consider layered transmission of a Gaussian source over a quasi-static fading channel. A broadcast strategy is used in which… 
2006
2006
Based on an initial idea of Shannon, we investigate an approach, named Shannon mapping, for transmission of analog messages, that… 
2004
2004
In orthogonal frequency division multiplexing (OFDM) systems, for every block of K data samples, an overhead of L samples of… 
1999
1999
ABSTRACT The performance of a CDMA system employ-ing very low-rate maximum free distance codes for com-bined coding and spreading… 
1990
1990
By using codes of rate 2/3 followed by 8-PSK modulation, a gain of 3-6 dB is obtained over uncoded 4-PSK, for an ideal coherent…