Table of Contents
Rectify
Overview
Rectifying a signal is a simple process that involves taking the absolute value of a bipolar signal to output a unipolar version. The Rectify command can be used to compute the absolute value of every element of a signal for use cases that require entirely positive signals.
Visual3D calculates signal rectification using the following formula:
x(ti)= abs(x(ti))
A visual example of what a rectified signal might look like:
Pipeline Command
The Rectify command can be found in the Pipeline Workshop within the Signal Math folder as so:
Rectify ! /SIGNAL_TYPES= ! /SIGNAL_FOLDER=ORIGINAL ! /SIGNAL_NAMES= ! /RESULT_TYPES= ! /RESULT_FOLDERS=PROCESSED ! /RESULT_NAME= ! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME= ;
Command Parameters
The parameters that can be used to control the command are as follows:
| Signal Types | The type of signal to be rectified |
| Signal Folder | The name of the signal to be rectified |
| Signal Names | The name of the signal folder |
| Result Types | The type of the resulting signal |
| Result Folders | The name of the resulting folder |
| Result Name | The name of the resulting signal |
| Apply As Suffix To Signal Name | Add a suffix to the signal name |
Command Dialog
The command can be edited via text editor or via a dialog. The details on the command and the dialog are found below:
Example: Rectifying Hip Moment Signal
This example shows how the Rectify command can be used on a hip moment signal to show only the absolute value of each component:
Rectify /SIGNAL_TYPES=LINK_MODEL_BASED ! /SIGNAL_FOLDER=ORIGINAL /SIGNAL_NAMES=LHipMoment /RESULT_TYPES=LINK_MODEL_BASED ! /RESULT_FOLDERS=PROCESSED /RESULT_NAME=LHip_Rectified ! /APPLY_AS_SUFFIX_TO_SIGNAL_NAME= ;