1 Determine whether or not each of the following are valid a

1. Determine whether or not each of the following are valid autocorrelation matrices. If they are not, explain the reason not plain Rere(1, 12) (b) R2E2-1) 3 2-2 2 1-j (a) R1 = (1-1 Symmetric. (b)R2=1232 -2 2 3 2 syn n metnic

Solution

1)b)

detR2= -2^2+2*-2*-2+(1-4-4)>=0

=-4+8+1

=5>=0

now

(1-4)(1-4)<=1

so it is not valid auto correlation function

1)a) valid ato correlation