Homework Assignment 9
Due Nov. 1, 1999
- Problem 7.28.
- Problem 7.31.
- A discrete-time low-pass filter is required to meet the following
Passband edge: 4 kHz
Stopband edge: 10 kHz
Passband ripple: 1 dB
Stopband attenuation: 40 dB
Sampling frequency: 48 kHz
- Find the specifications for an continuous time low-pass filter which
can be used as a prototype for the digital filter.
- Design the continuous-time prototype. I.e., find the transfer function
for the continuous-time filter. Plot the pole-zero diagram and gain of the
continuous-time filter. (Use the MATLAB function freqs to find the
- Use the bilinear transformation to get the discrete-time filter. Write
down the transfer function. Plot the pole-zero diagram and gain of the