A television channel with bandwidth 5 MHz is normalized to peak voltages ±1 V, and the average power is 30 mW. The signa

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A television channel with bandwidth 5 MHz is normalized to peak
voltages ±1 V, and the average power is 30 mW. The signal must be
sampled at least 25% above the Nyquist rate. The signal is
uniformly quantized and the signal to quantization noise ratio is
required to be at least 30 dB. Suppose that we multiplex 15 such
channels and the multiplexed signal is transmitted using 32-ary PAM
signaling.
1) Assume binary signaling is used, and the
received pulses pr(t) have the following non-zero sample values:
pr(0) = 1, pr(Tb) = −0.15, pr(−Tb) = 0.6, where Tb is the bit
duration. A designer decided to use a 3-tap ZFE equalizer with
coefficients [−0.5 0.8 0.1]. You were invited as a communication
engineer to verify if this is a reasonable equalizer. What is your
advice; is this a reasonable equalizer? What is the residual ISI?
Could it be improved?
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