DSP Blockset

Concatenating Independent Frame-Based Signals into Multichannel Signals

You can combine existing frame-based signals into a larger multichannel signal by using the Matrix Concatenation block in the Simulink Sources library. All signals must have the same frame rate and frame size.

Example: Concatenating Frame-Based Signals.   In the model below, a single-channel frame-based signal is combined with a two-channel frame-based signal to produce a three-channel frame-based signal.

To build the model, make the following parameter settings:

• In Signal From Workspace, set Signal = [1:10;-1:-1:-10]'
• In Signal From Workspace1, set Signal = 5*ones(10,1)
• In Matrix Concatenation, set:
• Number of inputs = 2
• Concatenation method = Horizontal

The 4-by-3 matrix output from the Matrix Concatenation block contains all three input channels, and preserves their common frame rate and frame size. See Frame-Based Multichannel Signals for more about frame-based signals.

Note that you could also create or import the three-channel signal using just one Signal From Workspace block. See these sections for more information:

• Creating Signals Using the Signal From Workspace Block
• Importing a Multichannel Frame-Based Signal

Constructing Multichannel Frame-Based Signals

Buffering Sample-Based and Frame-Based Signals