Using the resulting matlab program illustrate the

Question

Using the MATLAB plotting routines, generate the (D, Q, t) coordinate system as illustrated in Figure and plot x_d(t) and x_q(t) for a π/4 DQPSP signal. Use four symbols of both x_d(t) and x_q(t).

Using the resulting MATLAB program, illustrate the generation of x_d(t), x_q(t), and the scatter plot from the three-dimensional image. In addition, generate, the real envelope signal. (Note: Consider the MATLAB commands plot3, rotate3d, and view.)