Databases Reference
In-Depth Information
T A B L E 9 . 3
Optimum step size and SNR for uniform quantizers for different
distributions and alphabet sizes. The variance for each distribution is
1.[
122
,
123
]
Alphabet Size
Uniform
Gaussian
Laplacian
Step Size
SNR
Step Size
SNR
Step Size
SNR
2
1.732
6.02
1.596
4.40
1.414
3.00
4
0.866
12.04
0.9957
9.24
1.0873
7.05
6
0.577
15.58
0.7334
12.18
0.8707
9.56
.
8
0.433
18.06
0.5860
14.27
0.7309
11.39
10
0.346
20.02
0.4908
15.90
0.6334
12.81
12
0.289
21.60
0.4238
17.25
0.5613
13.98
14
0.247
22.94
0.3739
18.37
0.5055
14.98
16
0.217
24.08
0.3352
19.36
0.4609
15.84
32
0.108
30.10
0.1881
24.56
0.2799
20.46
