3. You have bought a data acquisition device from Ebay. The sampling interval of the device is 1 msec. a. What is the sampling frequency of the device? What is the folding frequency of the device? No...
3. You have bought a data acquisition device from Ebay. The sampling interval of the device is 1 msec. a. What is the sampling frequency of the device? What is the folding frequency of the device? Now, you are measuring following sinusoidal signals with the data acquisition device. For each signal, draw 1) Fourier transform magnitude of the original continuous-time signal, 2) Fourier transform magnitude of the sampled signal (draw at least first positive replica and first negative replica), 3) Fourier transform magnitude of the sampled signal after passing the low pass filter (with the cut off frequency set at the folding frequency) b. cos(800t) c. cos(1200mt) d. cos(200t) cos (1400mt)
3. You have bought a data acquisition device from Ebay. The sampling interval of the device is 1 msec. a. What is the sampling frequency of the device? What is the folding frequency of the device? Now, you are measuring following sinusoidal signals with the data acquisition device. For each signal, draw 1) Fourier transform magnitude of the original continuous-time signal, 2) Fourier transform magnitude of the sampled signal (draw at least first positive replica and first negative replica), 3) Fourier transform magnitude of the sampled signal after passing the low pass filter (with the cut off frequency set at the folding frequency) b. cos(800t) c. cos(1200mt) d. cos(200t) cos (1400mt)