Signal Processing Toolbox

Analysis Parameters

In the plot area of any filter response plot (Magnitude, Phase, etc.) right-click and select Analysis Parameters to display details about the displayed plot. Not all of these fields are displayed for all types of plots.

• Range--range of the frequency axis or Specify freq. vector
• Number of Points--number of samples used to compute the response
• Frequency vector--vector to use for plotting, if Specify freq. vector is selected in Range.
• Response--y-axis units (Magnitude, Magnitude (dB), Magnitude squared, or Zero-Phase)
• Phase units--y-axis units (Degrees or Radians)
• Phase--type of phase plot (Phase or Continuous Phase)
• Group Delay--y-axis units (Samples or Time)
• Frequency units--y-axis units (Normalized or Hz)
• Frequency scale--y-axis scale (Linear or Log)
• Specify Length--length type of impulse or step response (Default or Specified)
• Length--number of points to use for the impulse or step response
• Time Mode--x-axis units (Samples or Seconds)

In addition to the above analysis parameters, you can change the plot type for Impulse and Step Response plots by right-clicking and selecting either Solid or Stem from the menu.

For the impulse and step response plots, you can select the plot type (Stem or Line) from the context menu.

To save the displayed parameters as the default values to use when FDATool or FVTool is opened, click Save as default.

To restore the MATLAB-defined default values, click Restore orignal defaults.

Data Markers

Sampling Frequency