Max Region FM Slope Deviation

Specifies the maximum per region FM Frequency Modulation slope deviation (Hz/us) value used to automatically detect valid Linear FM regions within the measured FM Slope (Hz/us) modulation trace results. Valid LFM regions are defined to be FM Slope (Hz/us) modulation time regions of duration greater than or equal to the user specified Min Region Time Length (s) which remain constant to within the specified Max Region FM Slope Deviation (Hz/us) value peak-to-peak deviation tolerance.

Valid selections are:

• Automatic & Scale

  • By default, FMCW analysis automatically determines an appropriate Max Region FM Slope Deviation (Hz/us) based on the measured FM Slope (Hz/us) modulation trace results observed over the Acquisition Length time. This automatically determined value is reported as the “FM Slope Max Dev Limit (Hz/us)” metric value within the FMCW Summary results table. You may further choose to apply a Scale (%) adjustment factor greater (or less) than the default 100% value in order to increase (or decrease) the automatically determined “FM Slope Max Dev Limit (Hz/us)” value.

    

• Manual

  • Alternatively, you can manually specify an appropriate Max Region FM Slope Deviation (Hz/us) value to use based on the measured signal's LFM region-group pattern and observed FM Slope (Hz/us) modulation trace results.

Default selection: Automatic

Default value (Scale): 100 %

Default value (Manual): 1 MHz Megahertz: A unit of frequency equal to one million hertz or cycles per second./us