Normal Random Variable - Random Signals and Processes Primer with MATLAB - page 250

2 =4 2 =4

a

m= − 6, σ m= − 2, σ

20

20

10 10

0 0

− 10

− 10

2000 4000 6000

n

8000 10000 2000 4000 6000 8000 10000

n

2 =4 2 =4

m=3, σ m=8, σ

20 20

10 10

0

0

− 10 − 10

2000 4000 6000 8000 10000 2000 4000 6000 8000 10000

n n

2 =4 2 =4

b

m= − 6, σ m= − 2, σ

0.4 0.4

0.3 0.3

0.2 0.2

0.1 0.1

0
− 15

0

− 10 − 5 0 − 10 − 5 0 5

cells cells

2 =4 2 =4

m=3, σ m=8, σ

0.4 0.4

0.3 0.3

0.2 0.2

0.1 0.1

0 0

− 5 0 5 10 0 5 10 15

cells cells

Fig. 4.13 Normal random variables with s 2

¼ 4 and different mean values. ( a ) Normal random

variables. ( b ) Estimated PDFs