Abstract | ||
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The causal delay of finite impulse response filters can be minimized by the use of recursive Minimum-phase filters, i.e., IIR filters. However, in IIR filters delay distortion arises which is undesirable. Many algorithms have been proposed, which try to attain both these goals, of minimizing causal delay and delay distortion, simultaneously. Usually for a long input sequence to be filtered, block convolution techniques are used such as overlap-save method (OSM) and overlap-add method (OAM). However, in these methods the output sequence has a finite group delay with respect to input. To reduce that group delay, in this paper, we have proposed the technique of enhanced modified overlap and save method. In our method, we first make the impulse response (IR) causal (i.e., h(n)=0 for n |
Year | DOI | Venue |
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2011 | 10.1016/j.sigpro.2011.02.005 | Signal Processing |
Keywords | Field | DocType |
group delay,causal delay,iir filter,overlap and save method,fir digital filter,fir filter,overlap-save method,impulse response,overlap-add method,finite group delay,group delay reduction,delay distortion,finite impulse response filter,iir filters delay distortion,finite impulse response | Signal processing,Digital filter,Linear filter,Control theory,Causal filter,Infinite impulse response,Group delay and phase delay,Finite impulse response,Mathematics,Minimum phase | Journal |
Volume | Issue | ISSN |
91 | 8 | Signal Processing |
Citations | PageRank | References |
0 | 0.34 | 5 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Boul Chandra Garai | 1 | 31 | 1.31 |
Priyanka Das | 2 | 31 | 1.31 |
Amit Kumar Mishra | 3 | 25 | 17.27 |