k

8

9

10

11

12

T_k

14

13

12

11

10

Σ^(k)sign(dB)

−2

−1

2

3

0

Y_k

2560

5120

10,240

20,480

40,960

${\left|A_1\right|}^2$

0.4

0.28

0.3

0.44

0.34