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Data Fusion Centre

IP Network

Weighted Decision Rule

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( ft )1

( ft )2

u1, j (t)

u2, j (t)

Wavelet-Based Sensor: S2

b1, j (t)

Weight Matrix and Linear Combiner

b2, j (t)

Decision Fusion Rule

δj

Σ

v2, j (t)

λ(⋅)

bn, j (t)

( f t )n

v1, j (t)

λ(⋅)

Global Decision Function

ϕ() ⋅

u0, j (t)

vn, j (t)

λ(⋅)

un, j (t)

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LT [sec]

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x 10 10

WL [ms]

8 6 4 2 0 5

x 10 2.5

DT [ms]

2 1.5 1 0.5 0 23

24

25

26

27

28

29

30

31

01

02

03

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05

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Date: 23 Oct. to 05 Nov. 1999

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u0,1(n)

1

Alarms Abnormal Period

0.5

0

Log Time (LT) 1.1

2,1

γ (n)

1.15

1.05 1

Web Latency (WL)

1.05

4,1

γ (n)

1.1

1

Data Time (DT)

γ5,1(n)

1.3 1.2 1.1 1 23

24

25

26

27

28

29

30

31

01

02

03

04

05

06

Date: 23 October to 05 November, 1999

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