Doppler Spectrum

This option allows the user to see a 2D graph of the field values for each frequency of the Doppler frequency Spectrum Shift. The frequency scale is relative to the carrier frequency, that means that a 0.0 frequency shift is for a signal that does not suffer any frequency shift (it frequency is exactly the carrier frequency).

To plot a graph, the user can select the field component, the polarization, the step, the carrier frequency and the Doppler Period (). A new graph will be plotted with the button ' Add Series'. In the case that the user has set up a parametrized geometry (see GUI for details), it is possible to select the step to visualize the results for.

It is also possible to delete a series that is selected by the user from the list with the 'Remove Series'. The display option also allows changing the color of the series and display points. The buttons ' Import Series' and ' Export Series' are used for importing and exporting the selected series in 'List of Series' to a data file written as a text file.

This panel displays a plot with the results, and several options for adding and removing extra series from the plot.

When initially open, the panel will display a default series in the plot that will represent the measurements for a particular component, polarization and step. More series can be added, by selecting component, polarization and step that appears leftside to the plot.

Component: select the Cartesian component of the field to visualize the results. The enabled options are Ex, Ey, Ez and ETotal.
Polarization: select the polarization component of the wave to visualize the results. Select one of the possible values Vertical, Horizontal. If the source has been defined as a radiation pattern, this combo box will not be available.
Step: select the simulation scene to visualize the results. These should have been defined prior to the calculation when designing the simulation.
Frequency select the simulation frequency (as the carrier frequency) to visualize the results.
Period select the simulation Doppler period (Only will be enabled if Doppler FMCW option is selected on Doppler parameters) to visualize the results.