Answer Happy

We want to transmit a high-fidelity analog audio message between -24kHz and 24kHz. To do this, the signal is digitized as a PCM binary digital signal according to the Manchester line code with amplitudes of +-10V. The transmitted pulses are square shaped and the thermal noise at the receiver input has a bilateral power spectral density of 3μW/Hz. a) given the bit sequence [10011], illustrate the corresponding signal with the line code described and according to the following graphic frame, where T is the period of 1 bit. IT | T 3T TUT
b) Assuming that it takes 8 bits per sample of the analog signal to obtain a satisfactory RSBQ and that the sampling rate is chosen to correspond to 1.5 times what is dictated by the Nyquist criterion (sampling theorem), what should be the PCM signal rate in bits/sec? c) Calculate the energy per bit and noise power at the receiver if the channel induces 7 dB attenuation d) If, instead of the bit rate you found in (c), we have a bit rate of 300 kbits/s, Determine the energy Eb and the probability of error if the channel induces an attenuation of 7 dB.