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Practical Biomedical Signal Analysis Using MATLAB
book

Practical Biomedical Signal Analysis Using MATLAB

by Katarzyn Blinowska, Jaroslaw Zygierewicz
September 2011
Intermediate to advanced content levelIntermediate to advanced
324 pages
10h 9m
English
CRC Press
Content preview from Practical Biomedical Signal Analysis Using MATLAB
28 Practical Biomedical Signal Analysis Using MATLAB
R
only frequencies below the Nyquist frequency of the resultant downsampled signal.
This is usually achieved by lowpass ltering the original signal before downsam-
pling. If the original signal s
0
is sampled at frequency F
s
0
and the desired frequency
is F
s
1
= F
s
0
/q for an integer q, then the frequency band of the signal s
0
needs to be
reduced to the range (0,
1
2q
F
s
0
). In practice, one needs to set the cut-off frequency of
the lowpass lter smaller then
1
2q
F
s
0
), because the lter roll-off is nite. In MATLAB
Signal Processing Toolbox the downsampling with anti-aliasing ltering is imple-
mented in function ...
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Publisher Resources

ISBN: 9781439812037