Rohde & Schwarz RTE Series - FFT Overlap

Spectrum analysis
R&S
®
RTE
409User Manual 1326.1032.02 ─ 20
If this option is disabled, the preset color of the selected channel source is displayed,
and the intensity of the specific signal color varies according to the cumulative occur-
rence of the values. For spectrum diagrams, this setting corresponds to the common
waveform display. The spectrogram, on the other hand, is then displayed in gray tones,
which is not useful.
Remote command:
CALCulate:MATH<m>:FFT:USEColtab on page 1330
9.1.3.2 FFT overlap
Access: [MATH] > "FFT Overlap"
In this tab, you define the settings for the magnitude and phase of the frequencies.
Max FFTs / Acquisition................................................................................................ 409
FFT Segment Arithmetic............................................................................................. 410
Overlap Factor............................................................................................................ 410
Max FFTs / Acquisition
Restricts the maximum number of FFTs to be calculated for each data acquisition. Due
to the other parameter settings, the required number of FFTs may become very high,
thus slowing performance. By restricting the number of FFTs, you can avoid perfor-
mance loss without changing the other parameters.
However, if the maximum number of FFTs is lower than the required number to cover
the entire waveform, the waveform may only be analyzed partially. In this case, the
"Frame coverage" indicates the percentage of the waveform that was analyzed, i.e.
which part of the data was included in the FFT calculation.
FFT analysis