1. a) Sketch the spectrum of the message signal x,(t) = 4 sinc(2f) cos(6zt) and then...

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1. a) Sketch the spectrum of the message signal x,(t) = 4 sinc(2f) cos(6zt) and then find bandwidth and minimum sampling frequency. b) The signal x,(1) is time division multiplexed with the signal whose spectrum is given in Figure 1(a). Prior to multiplexing, both signals are sampled separately. If the sampling of the both signals will be done with same minimum frequency, then how the sampling frequency should be selected? -2.5 2.5 Figure 1(a) c) Write the multiplexed signal xppa (1) sample values in [0-1] sn interval. What is the rate of TDM signal? Hint:Your odd mumbered samples should belong to x,(t) and even mumbered samples should belong to x, (1) d) If such sample values are applied to quantizer with input-output characteristic given in Figure 1(b), then find coresponding quantized values at the output. If you are failed to find sample values, use [0 -1 0121 2] sequence as sample values. Output -1 -0.5 0.5 Input Figure 1(b) e) Propose a rule which maps the quantization levels to the bits and then find the corresponding bit sequence at the output in [0-1] sn interval. 1. a) Sketch the spectrum of the message signal x,(t) = 4 sinc(2f) cos(6zt) and then find bandwidth and minimum sampling frequency. b) The signal x,(1) is time division multiplexed with the signal whose spectrum is given in Figure 1(a). Prior to multiplexing, both signals are sampled separately. If the sampling of the both signals will be done with same minimum frequency, then how the sampling frequency should be selected? -2.5 2.5 Figure 1(a) c) Write the multiplexed signal xppa (1) sample values in [0-1] sn interval. What is the rate of TDM signal? Hint:Your odd mumbered samples should belong to x,(t) and even mumbered samples should belong to x, (1) d) If such sample values are applied to quantizer with input-output characteristic given in Figure 1(b), then find coresponding quantized values at the output. If you are failed to find sample values, use [0 -1 0121 2] sequence as sample values. Output -1 -0.5 0.5 Input Figure 1(b) e) Propose a rule which maps the quantization levels to the bits and then find the corresponding bit sequence at the output in [0-1] sn interval.