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GDS-3000 Series User Manual
82
Math Operation
Overview
Background
Math operation runs addition, subtraction,
multiplication, division or FFT using the input
signals or reference waveforms (Ref1~4) and
shows the result on the display. The resulted
waveform characteristics can be measured using
the cursors.
Addition (+)
Adds the amplitude of two signals.
Source
CH1~4, Ref1~4
Subtraction (–)
Extracts the amplitude difference between two
signals.
Source
CH1~4, Ref1~4
Multiplication (×)
Multiplies the amplitude of two signals.
Source
CH1~4, Ref1~4
Division (÷)
Divides the amplitude of two signals.
Source
CH1~4, Ref1~4
FFT
Runs FFT calculations on a signal. Four types of
FFT windows are available: Hanning, Hamming,
Rectangular, and Blackman.
Source
CH1~4, Ref1~4
Hanning FFT
Window
Frequency resolution
Good
Amplitude resolution
Not good
Suitable for....
Frequency measurement on
periodic waveforms
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