GW Instek GDS-3000 Series User Manual - Manual (Page 82)

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