10. Using the information shown and assuming a second order model excited by a step input, find the corresponding transfer function. Amplitude 1.6 1.4 1.2 0.8 0.6 0.4 0.2 0 System: sys Time (seconds): 0.0159 Amplitude: 1.57 0.02 System: sys Time (seconds): 0.0316 Amplitude: 0.673 0.04 System: sys Time (seconds): 0.0477 Amplitude: 1.19 Step Response 0.06 0.08 0.1 Time (seconds) 0.12 0.14 0.16 0.18

An analog television signal containing frequencies up to 4.5MHz is to be coded by an ADC. The sampling frequency is 20% above the Nyquist rate. If there are 1024 quantizing levels, determine the rate of transmission.

Consider the following continous time signal x(t).  Assume that the signal was sampled at a sampling frequency of 20 Hz.  Plot the magnitude spectrum of the sampled signal as a function of cyclic frequency. Be sure to include n values of up to +-2. Label x and y axis.  Did aliasing occur? If so, what is the aliased frequency? x(t) = 1 + 2cos(2pi25t)

Q. Suppose that you have an angle modulaton system with an input signal £01) s wiangle wave of fundamental frequency 5 kiz and its most power is concentrated in the frst third harmonics, the masimum and minimu voltage ae | and -1 espectively. where one period equation of theinput s o[BIl 0