Question
The solution to these should be MATLAB codes and plots. Make sure that you label all the axes of your plots.
Consider the discrete-time signal and assume N = 12. For M = 4, 5, 7, and 10, plot xm[ji] on the interval 0 le n le 2N - 1. Use stem to create your plots, and be sure to appropriately label your axes. What is the fundamental period of each signal? In general, how can the fundamental period be determined from arbitrary integer values of M and N? Be sure to consider the case in which M > N. Consider the signal where omega k = 2 pi k/5. For xk[n] given by k = 1, 2, 4, and 6, use stem to plot each signal on the interval 0 le n le 9. All of the signals should be plotted with separate axes in the same figure using subplot. How many unique signals have you plotted? If two signals are identical, explain how different values of omega k can yield the same signal. Now consider the following three signals Assume N = 6 for each signal. Determine whether or not each signal is periodic. If a signal is periodic, plot the signal for two periods, starting at n = 0. If the signal is not periodic, plot the signal for 0 le n le 4N and explain why it is not periodic. Remember to use stem and to appropriately label your axes.
Explanation / Answer
sin