Unformatted text preview: 4 (a) Determine the frequency extent of the input spectrum. (b) Write down the block diagram of the system, which is like a modem. Can we send video signal through the telephone line and watch TV through the phone system? 5 (a) Introduce a new variable for storing ( 29 • u 7 . . (b) Sketch the spectra of the signal at various stages of the system. 6 (a) Recall the precautions that one must take in estimating the spectrum of a noisy signal. (b) Follow what has been done for radix-2 system in the book....
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- Fall '07
- Signal Processing, spectral density, Telephone line, input spectrum, spectrum analyzer correspond