If the difference d(n) = x(n)–ax(n-1), then what is the optimum cho

1.	If the difference d(n) = x(n)–ax(n-1), then what is the optimum choice for a = ?
A.	${γ_{xx} (1)}{σ_x^2}$
B.	${γ_{xx} (0)}{σ_x^2}$
C.	${γ_{xx} (0)}{σ_d^2}$
D.	${γ_{xx} (1)}{σ_d^2}$
Answer» B. ${γ_{xx} (0)}{σ_x^2}$

Discussion

1.	If the difference d(n) = x(n)–ax(n-1), then what is the optimum choice for a = ?
A.	\({γ_{xx} (1)}{σ_x^2}\)
B.	\({γ_{xx} (0)}{σ_x^2}\)
C.	\({γ_{xx} (0)}{σ_d^2}\)
D.	\({γ_{xx} (1)}{σ_d^2}\)
Answer» B. \({γ_{xx} (0)}{σ_x^2}\)