Agilent Technologies 4395A - Page 412

Markers
P
eak Denition
for Spectrum
Analyzer
Mode
The
following parameters
are
used
in
the
peak
denition
for
the
spectrum
measurement:
1Y
(dierence of
amplitude
between
a
peak
and
an
adjacent
local
minimum
point)
Threshold
value
The
search functions
search
for
a
peak
where
the
parameters
of
the
peak
match
the following
conditions:
1Y

min(max(1y
L
,
1y
R
),
1y
TH
)
where:
1y
L
,
1y
R
are
the
dierence
in
amplitude
value
between
a
peak
and
the adjacent
local
minimum
point.
1y
TH
is
the
dierence
between
a
peak
and
the
threshold
value
.
That
is
,
the
search
functions
search
for
a
peak
where
the
dierence of
amplitude between
the
peak
and
the
smaller
of
the
adjacent
local
minimum
points
is
greater than
1Y,
and the
dierence
between
the
peak
and
the
threshold
is
greater
than
1Y.
The
peak
polarity
is
always
positive
for
the
spectrum
analyzer
peak
search
functions
.
Figure A
-21. P
eak Denition for Spectrum Analyzer Mode
A-36 Basic Measurement Theory