DSP Blockset

Importing a Multichannel Frame-Based Signal

The Signal From Workspace block in the DSP Sources library is the key block for importing frame-based signals from the MATLAB workspace.

The dialog box has the following parameters:

• Signal
• Sample time
• Samples per frame
• Form output after final data value by

Use the Signal parameter to specify the name of a variable (vector or matrix) in the MATLAB workspace. You can also enter any valid MATLAB expressions involving workspace variables, as long as the expressions evaluate to a vector or matrix.

The Samples per frame parameter must be set to a value greater than 1 for frame-based output; a value of 1 produces sample-based output. See Importing a Multichannel Sample-Based Signal for more information.

The Sample-time parameter specifies the sample period, T_s, of the frame-based output. The frame period of the signal is M*T_s, where M is the value of the Samples per frame parameter. See Frame-Based Multichannel Signals for general information about frame-based signals.

The following section explains how the Signal From Workspace block generates its frame-based output.

Example: Importing a Sample-Based Matrix Signal

Importing a Frame-Based Signal with the Signal From Workspace Block