Region Table Metrics (Advanced Radar)

Menu Path: Trace > Data > Result Tables

This topic describes the metrics displayed in the Region Table.

Pulse/Region

• Pulse

  • Indicates the pulse number which this region falls in. Only present, when Pulsed is checked.

• Region

  • Region value indicates the sequentially assigned region index within the current measurement acquisition

Time/Level

• Start Time (sec)

  • Start Time reports the relative timing to the start of each detected region.

• Stop Time (sec)

  • Stop Time reports the relative timing to the end of each detected region.

• Region Width (sec)

  • Region Width reports the time interval difference between the detected region end and start.

• Freq/Phase/Chirp Mode (Hz/µs)

  Freq/Phase/Chirp Mode (depending on the selected Synchronization Domain) reports the mode value (i.e. the more commonly occurring value) across the "on" portion of the region.

Settling

• Settling Time (sec)

  • Settling Time reports the relative timing from the start of the detected region to the point where the chirp slope no longer deviates outside the allowed settling tolerance (Hz/us).

• Dwell Time (sec)

  • Dwell Time reports the relative timing from the point where the chirp slope no longer deviates outside the allowed settling tolerance (Hz/us) to the end of the detected region.

• Switching Time (sec)

  • Switching Time reports the relative timing between detected regions which fall inside the same amplitude pulse.

Phase Modulation

• Phase Mean (deg)

  • Phase Mean reports the mean phase measured over each region's user-defined analysis time samples.

• Phase Min (deg)

  • Phase Min reports the minimum phase measured over each region's user-defined analysis time samples.

• Phase Max (deg)

  • Phase Max reports the maximum phase measured over each region's user-defined analysis time samples.

• Phase Pk-Pk Dev (deg)

  • Phase Pk-Pk Dev reports the peak-to-peak phase deviation measured over each region's user-defined analysis time samples.

  • Phase Pk-Pk Dev (deg) = abs(Phase Max (deg) - Phase Min (deg))

Frequency Modulation (not available when Phase Synchronization Domain is selected)

• Freq Mean (Hz)

  • Freq Mean reports the mean frequency measured over each region's user-defined analysis time samples.

• Freq Min (Hz)

  • Freq Min reports the minimum frequency measured over each region's user-defined analysis time samples.

• Freq Max (Hz)

  • Freq Max reports the maximum frequency measured over each region's user-defined analysis time samples.

• Freq Pk-Pk Dev (Hz)

  • Freq Pk-Pk Dev reports the peak-to-peak frequency deviation measured over each region's user-defined analysis time samples.

  • Freq Pk-Pk Dev (Hz) = abs(Freq Max (Hz) - Freq Min (Hz))

Chirp Modulation (only available when Linear Chirp Synchronization Domain is selected)

• Chirp Mean (Hz/µs)

  • Chirp Mean reports the mean slope measured over each region's user-defined analysis time samples.

• Chirp Min (Hz/µs)

  • Chirp Min reports the minimum slope measured over each region's user-defined analysis time samples.

• Chirp Max (Hz/µs)

  • Chirp Max reports the maximum slope measured over each region's user-defined analysis time samples.

• Chirp Pk-Pk Dev (Hz/µs)

  • Chirp Pk-Pk Dev reports the peak-to-peak slope deviation measured over each region's user-defined analysis time samples.

  • Chirp Pk-Pk Dev (Hz/µs) = abs(Chirp Max (Hz/µs) - Chirp Min (Hz/µs))

Best-Fit Freq (not available when Phase Synchronization Domain is selected)

• Best-Fit Freq Mean (Hz)

  • Best-Fit Freq Mean frequency in Hz, reports the mean frequency of a best-fit linear least squares regression line measured over each region's user-defined analysis time samples.

  • Best-Fit Freq Mean (Hz) = (Best-Fit Freq Start (Hz) + Best Fit Freq Stop (Hz))/2

• Best-Fit Freq Start (Hz)

  • Best-Fit Freq Start frequency in Hz, reports the start frequency of a best-fit linear least squares regression line measured over each region's user-defined analysis time samples.

• Best-Fit Freq Stop (Hz)

  • Best-Fit Freq Stop frequency in Hz, reports the stop frequency of a best-fit linear least squares regression line measured over each region's user-defined analysis time samples.

• Best-Fit Freq Pk-Pk Dev (Hz)

  • Best-Fit Freq Peak-to-Peak Deviation in Hz, reports the absolute frequency deviation of a best-fit linear least squares regression line measured over each region's user-defined analysis time samples.

  • Best-Fit Freq Pk-Pk Dev (Hz) = abs(Best-Fit Freq Stop (Hz) - Best-Fit Freq Start (Hz))

• Best-Fit Freq Slope (Hz/µs)

  • Best-Fit Freq Slope in Hz/us, reports the frequency slope rate of a best-fit linear least squares regression line measured over each region's user-defined analysis time samples.

• Best-Fit Freq INL (%)

  • The Best-Fit Freq Integral Non-Linearity in % metric is the ratio of worst case peak frequency modulation error over peak-to-peak frequency deviation of a best-fit linear regression line measured over each region's user-defined analysis time samples.

  • Best-Fit Freq INL (%) = (Freq Error Peak (Hz) / Best-Fit Freq Pk-Pk Dev (Hz)) * 100.0

Phase Error

• Phase Error RMS (deg)

  • Phase Error RMS reports the root-mean-square phase error difference between the Phase Meas Time trace and the Phase Ref Time trace, measured over each region's user defined analysis time samples.

• Phase Error Peak (deg)

  • Phase Error Peak reports the absolute maximum phase error difference between the Phase Meas Time trace and the Phase Ref Time trace, measured over each region's user defined analysis time samples.

• Phase Error Peak Loc (sec)

  • Phase Error Peak Loc reports the time location offset from the reported region analysis Time Start (sec) value of each region, to the location of the Phase Error Peak (deg) occurrence.

Freq Error (not available when Phase Synchronization Domain is selected)

• Freq Error RMS (Hz)

  • Freq Error RMS reports the root-mean-square frequency error difference between the Freq Meas Time trace and the Freq Ref Time trace, measured over each region's user defined analysis time samples.

• Freq Error Peak (Hz)

  • FFreq M Error Peak reports the absolute maximum frequency error difference between the Freq Meas Time trace and the Freq Ref Time trace, measured over each region's user defined analysis time samples.

• Freq Error Peak Loc (sec)

  • Freq Error Peak Loc reports the time location offset from the reported region analysis Time Start (sec) value of each region, to the location of the Freq Error Peak (Hz) occurrence.

Chirp Error (only available when Linear Chirp Synchronization Domain is selected)

• Chirp Error RMS (Hz)

  • Chirp Error RMS reports the root-mean-square slope error difference between the FM Frequency Modulation Meas Time trace and the FM Ref Time trace, measured over each region's user defined analysis time samples.

• Chirp Error Peak (Hz)

  • Chirp Error Peak reports the absolute maximum slope error difference between the FM Meas Time trace and the FM Ref Time trace, measured over each region's user defined analysis time samples.

• Chirp Error Peak Loc (sec)

  • Chirp Error Peak Loc reports the time location offset from the reported region analysis Time Start (sec) value of each region, to the location of the Chirp Error Peak (Hz) occurrence.