(多选题)11: 下列序列中不属于周期序列的为()
A: x(n) = δ(n)
B: x(n) = u(n)
C: x(n) = R4(n)
D: x(n) = 1
(责任编辑:admin) |
(多选题)11: 下列序列中不属于周期序列的为()
A: x(n) = δ(n)
B: x(n) = u(n)
C: x(n) = R4(n)
D: x(n) = 1
(责任编辑:admin) |