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Math FFT
Selecting an FFT Window
Windows reduce spectral leakage in the FFT spectrum. The FFT assumes that
the YT waveform repeats forever. With an integral number of cycles (1, 2, 3,
...), the YT waveform starts and ends at the same amplitude and there are no
discontinuities in the signal shape.
A non-integral number of cycles in the YT waveform causes the signal start and
end points to be at different amplitudes. The transitions between the start and end
points cause discontinuities in the signal that introduce high-frequency transients.
Applying a window to the YT waveform changes the waveform so that the start
and stop values are close to each other, reducing the discontinuities.
TPS2000B Series Digital Oscilloscope User Manual
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Summary of Contents for TPS2012B
Page 1: ...xx TPS2000B Series Digital Storage Oscilloscope ZZZ User Manual P071273302 071 2733 02...
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Page 3: ...TPS2000B Series Digital Storage Oscilloscope ZZZ User Manual xx www tektronix com 071 2733 02...
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Page 22: ...Compliance information xiv TPS2000B Series Digital Oscilloscope User Manual...
Page 26: ...Preface xviii TPS2000B Series Digital Oscilloscope User Manual...
Page 40: ...Getting Started 14 TPS2000B Series Digital Oscilloscope User Manual...
Page 93: ...Math FFT TPS2000B Series Digital Oscilloscope User Manual 67...
Page 96: ...Math FFT 70 TPS2000B Series Digital Oscilloscope User Manual...
Page 170: ...Appendix D Cleaning 144 TPS2000B Series Digital Oscilloscope User Manual...