Explore BrainMass
Share

Explore BrainMass

    Digital LPF Using Impulse Invariance Method

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    See attached word file. Taken from 'Digital Signal Processing Using MatLab' by Ingle/Proakis

    1. Design a digital LPF to be used in the configuration
    To satisfy the following requirements:
    Sampling rate = 8 kilosamples/sec
    Passband edge of 1.5kHz with ripple of 3dB
    Stopband edge of 2kHz with attenuation of 40dB
    Equiripple Passband but monotone Stopband, and

    Impulse invariance
    (a) Choose T=1 in the impulse invariance method and determine the system function H(z) in parallel form. Plot the log-magnitude response in dB and the impulse response h(n).
    (b) Choose T=1/8000 in the impulse invariance method and determine the system function H(z) in parallel form. Plot the log-magnitude response in dB and the impulse response h(n). Comment on the effect of T on the impulse invariance.

    Please see attachment for details and question.

    © BrainMass Inc. brainmass.com October 9, 2019, 4:07 pm ad1c9bdddf
    https://brainmass.com/statistics/probability-theory/digital-lpf-using-impulse-invariance-method-22677

    Attachments

    Solution Summary

    In the solution, a digital LPF is designed using matlab, given the parameters for sampling rate, passband edge, stopband edge, and type of passband. In addition, the system function is calculated with the impulse invariance method, and plots of the log-magnitude response and impulse response are given.

    $2.19