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Multirate DSP, part 1: Upsampling and downsampling

4/21/2008 07:00 AM EDT
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Smita
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re: Multirate DSP, part 1: Upsampling and downsampling
Smita   9/23/2010 11:47:05 AM
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Nice article. To be more specific,in fig 12-2, shouldn't the anti-aliasing filter cut-off be Fmax, i.e, maximum frequency of the input signal and the stop band start at Fs/2M? Also,for a multistage decimator and interpolator, how are the stop band frequencies chosen for each stage and what is its (Fstop) significance on the transition band and overall filter design? For instance for a multistage decimator, we have the stop-band at (Fi - Fo/(M*2)), where Fi is the sampling frequency of the 'i'th stage and F0 is the input sampling frequency. What exactly is the significance of having this (Fi - Fo/(M*2)) stop band frequency at each stage? Thanks very much!

siddiqui
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re: Multirate DSP, part 1: Upsampling and downsampling
siddiqui   5/17/2009 1:55:19 AM
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hi is there any good material i can get to study sigma delta modulators through matlab, as i need to designed it with low pass and then 1-1,2-2 and 2-2-2 mash,,? email me at mkaks_rock@yahoo.com. i will be obliged.

Kareem
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re: Multirate DSP, part 1: Upsampling and downsampling
Kareem   4/24/2008 4:10:24 AM
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Nice article. It gives good introduction about multirate signal processing. Hope he will cover application of multirate.

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