(a) shows the modified periodogram and (b) the Welch method of 10 realizations of an AR(2)-process with a peak at f = 0.2. The number of data samples is n = 64 and the number of averages in Welch...

(a) shows the modified periodogram and

(b) the Welch method of 10 realizations of an AR(2)-process with a peak at f = 0.2. The number of data samples is n = 64 and the number of averages in Welch method is K = 8. Which of the two methods gives the best estimate? Motivate your answer.