Homework Assignment 5
Due Sept. 29, 2000
- Problem 4.9 (a) (d) (f)
- Problem 4.18
- The Fourier transform of a low-pass filter will have a value of 1 for
low frequencies and a value of 0 for high frequencies:
- Find the impulse response of this discrete-time system by
taking the inverse Fourier transform of
- h[n] has an infinite number of terms, so cannot be implemented.
We can get an approximation of h[n] by taking a limited number of
terms. Take 101 terms of h[n], n = -50 ... +50. Print out
a stem plot of this truncated impulse response, h[n].
- Take the Fourier transform of h[n]. Plot the
vs f and