DSP Blockset

Deconstructing a Sample-Based Multichannel Signal
into a Related Multichannel Signal

You can select a subset of channels from a multichannel sample-based signal by using one of the following blocks in the Indexing library (in Signal Management):

• Selector (Simulink)
• Submatrix
• Variable Selector

The next section provides an example of using the Submatrix block to extract a portion of a multichannel sample-based signal. The Submatrix block is the most versatile of the above blocks in that it allows you to make completely arbitrary channel selections.

Example: Deconstructing to a Multichannel Signal.   In the model below, a 35-channel sample-based signal (5-by-7 matrix) is deconstructed to yield a sample-based signal containing only six of the original channels.

To build the model, make the following parameter settings:

• In DSP Constant, set Constant value = rand(5,7)
• In Submatrix, set:
• Row span = Range of rows
• Starting row = Index
• Starting row index = 3
• Ending row = Last
• Column span = Range of columns
• Starting column = Offset from last
• Starting column index = 1
• Ending column = Last

See Sample-Based Multichannel Signals for more about sample-based signals.

Deconstructing a Sample-Based Multichannel Signal into Multiple Independent Signals

Deconstructing Multichannel Frame-Based Signals