Information Technology Reference
In-Depth Information
T
. For a comprehensive assessment, the experts
e
k
η
=
(
.
,
.
,
.
)
(
=
,
,
)
0
4
0
3
0
3
k
1
2
3
(
=
,
,
,
)
decide to evaluate the systems
y
j
j
1
2
3
4
from four layers:
(1)
G
1
: Reconnaissance capability. It is very useful for a communication jamming
system, because when we want to jam enemy's communication system, we
should first find them. This capability can be reflected in four aspects:
G
11
: Search capability;
G
12
: Intercept capability;
G
13
: Parameter measurements capability;
G
14
: Recognition capability.
(2)
G
2
: Command and control capability. This capability is a bridge of connecting
the system and the user, from which we can operate the system. It contains three
factors:
G
21
: Information processing capability;
G
22
: Situation display capability;
G
23
: Reaction time.
(3)
G
3
: Jamming capability. This capability is very important, due to that if a com-
munication jamming systemdoesn't have powerful jamming capability, it cannot
destroy enemy's communication system. There also have three factors about this
capability:
G
31
: Jamming power;
G
32
: The capability of frequency-aiming;
G
33
: The coverage of frequency domain.
(4)
G
4
: Survival capability. It reflects the resistance against enemy's destroy. It can
be shown in four aspects:
G
41
: Mobility;
G
42
: Hidden performance;
G
43
: Invulnerability;
G
44
: Reliability and maintainability.
through
the above factors (attributes). Each evaluation value given by the
k
th expert over
the
j
th system under
i
th attribute of the
l
th layer is represented by an IFV
r
(
k
,
j
)
l
The experts
e
k
(
k
=
1
,
2
,
3
)
evaluate the systems
y
j
(
j
=
1
,
2
,
3
,
4
)
=
,
i
(μ
r
(
k
,
j
)
l
,
,π
r
(
k
,
j
)
l
)
, and all the IFVs given by
k
th expert about the
j
th system are
contained in the intuitionistic fuzzy matrix
R
(
k
,
j
)
, shown as follows (Zhang and Xu
2012):
v
r
(
k
,
j
)
l
,
i
,
i
,
i
⎛
⎞
(
0
.
6
,
0
.
3
,
0
.
1
)(
0
.
7
,
0
.
2
,
0
.
1
)(
0
.
7
,
0
.
1
,
0
.
2
)(
0
.
7
,
0
.
1
,
0
.
2
)
⎝
⎠
(
0
.
7
,
0
.
2
,
0
.
1
)(
0
.
6
,
0
.
2
,
0
.
2
)(
0
.
8
,
0
.
1
,
0
.
1
)
--
R
(
1
,
1
)
=
(
0
.
8
,
0
.
2
,
0
)(
0
.
8
,
0
.
1
,
0
.
1
)(
0
.
7
,
0
.
1
,
0
.
2
)
--
(
0
.
6
,
0
.
1
,
0
.
3
)(
0
.
7
,
0
.
1
,
0
.
2
)(
0
.
6
,
0
.
2
,
0
.
2
)(
0
.
7
,
0
.
2
,
0
.
1
)
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