k - spsc - Graz University of Technology
k - spsc - Graz University of Technology
k - spsc - Graz University of Technology
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SPSC – Signal Processing & Speech Communication Lab<br />
Interpretation using Bandpass Filters<br />
Traditional Fourier Transform as a Filter Bank<br />
figure 3: Representation <strong>of</strong> FT in terms <strong>of</strong> a linear system<br />
e<br />
0<br />
− jω<br />
n<br />
1. Modulator : performs a frequency shift<br />
(<br />
jω<br />
)<br />
H e<br />
2. LTI – System : ideal lowpass filter<br />
Pr<strong>of</strong>essor Georg Holzmann, Horst Cerjak, Christian 19.12.2005 Wallinger 12.06.07 Wavelet T. - Relation to Filter Banks<br />
5
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