6. Problem 6 [20 Points: The waveform in Figure2 represent the output of transmitters using PAM with raised cosine pulse shaping at a data rate of 50,000bits/sec Please demodulate this wave form by sampling in the center of the bit periods. What is the demodulated results, the data pattern represented by this waveform? volts 1.5 t 0.5 20 40 60 80 120 40 160 180 -0.5 -2 Figure 2