Searching For The Peak - Agilent Technologies ENA Series User Manual

Searching for the Peak

The peak search function enables you to move the marker to the peak (inflection point) on
the trace.
Definition of the Peak
A peak is a measurement point whose value is greater or smaller than the adjoining
measurement points on its right and left sides. Peaks are classified into the following two
types depending on the difference in magnitude from the measurement points on either side
of it.
Positive peak
(
Positive
Negative peak
(
Negative
The smaller of the differences in measured values from the adjoining peaks of the opposite
polarity is called peak deviation.
Figure 6-8 Positive Peak/Negative Peak and Peak Deviation
About the Peak Search Function
The peak search is a function that searches for a peak that matches a pre-defined peak
deviation and peak polarity (positive or negative) and then moves the marker to the peak
being searched.
The following three methods are available for executing the peak search:
Peak search
(
Search Peak
Left search
(
Search Left
Right search
(
Search Right
Chapter 6
Analyzing Data on the Trace Using the Marker
A peak whose measured value is greater than those of the
measurement points on either side of it (peak polarity: positive).
)
A peak whose measured value is smaller than those of the
measuring points on either side of it (peak polarity: negative).
)
Move the marker from the current marker position to the peak that
is closest based on the stimulus values.
)
Execute the search from the current marker position to the smaller
stimulus values, and move the marker to the first peak encountered.
)
Execute the search from the current marker position to the larger
stimulus values, and move the marker to the first peak encountered.
)
Data Analysis
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