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Unformatted text preview: desired Ω c . Generate the IIR digital ﬁlter using the bilinear transformation. Plot frequency responses using freqs and freqz . Comment on any speciﬁc diﬀerences between the two frequency responses. 8. (Gibbs phenomena, windowing and FIR ﬁlter design) (i) Chapter 10, Section 10.9, Problem M 10.1. For the equation 10.6 referred to, generate N = 2 M + 1 values of the impulse response, using the rangeM : M . Use the cutoﬀ frequency ω c = 0 . 4 π . You might wish to calculate the impulse response using the sinc function where sinc ( x ) = sinπx πx Obtain the frequency response (DFT) of this ﬁlter and plot the absolute value, using M=5 and 20. Explain the frequency response for the rangeπ, + π . That is, show the cutoﬀ frequency ω c = 0 . 4 π and explain the associated Gibbs phenomena....
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This note was uploaded on 07/18/2011 for the course EE 275 taught by Professor Koppelman during the Spring '11 term at LSU.
 Spring '11
 Koppelman
 Digital Signal Processing, Signal Processing

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