Peak Voltage; Peak Envelope Voltage; Absolute Level Definitions -Analog Signal Processing; Absolute Power Level - ABB ETL600 Instruction Manual

ETL600
5.2.2.2.

Peak voltage

The peak voltage of a signal with voltage x(t) is given by
U
peak
5.2.2.3.

Peak envelope voltage

In analogy to section 5.2.1.3 one can define the peak envelope voltage
(PEV) of a signal with voltage x(t) as the RMS voltage of a sine wave
that has the same peak voltage as x(t):
U (
PE
5.2.3. Absolute level definitions –analog signal processing
The term "absolute" is optional, but must be mentioned to distinguish
from system levels (refer to section 5.2.7) or relative levels (refer to
section 5.2.8), when this should not be clear from the context.
5.2.3.1.

Absolute power level

The absolute power level defines by how many dB the mean power P
of a signal x is greater or smaller than the reference power of 1 mW:
where P
5.2.3.2.

Absolute peak power level

The absolute peak power level defines by how many dB the peak
power P of a signal x is greater or smaller than the reference power of
1 mW:
[
L dBm
where P
5.2.3.3.

Absolute peak envelope power (PEP) level

The absolute peak envelope power (PEP) level defines by how many
dB the peak envelope power P of a signal x is greater or smaller than
the reference power of 1 mW:
[
L dBm
Configuration and Set-up
1KHW001489-EN
(
=
( x ) max x ( t , )
1
=
x ) U ( x )
peak
2
(
1
=
max x ( t , )
2
[ ]
= ∗
L dBm 10 log
(x) is given by equation (1).
mean
⎛
]
⎜ ⎜
= ∗
peak 10 log
⎝
(x) is given by equation (2).
peak
⎛
]
P
= ∗ ⎜ ⎜
PE 10 log
⎝
1
)
− ∞ < < ∞
t
)
− ∞ < < ∞
t
.
⎛ ⎞
P ( x )
⎜ ⎜ ⎟ ⎟
mean
,
.
⎝ ⎠
1 mW
⎞
P ( x )
⎟ ⎟
peak
,
⎠
1 mW
⎞
( x )
⎟ ⎟
PE
,
⎠
mW
November 2005
ABB Switzerland Ltd
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5-3