DSP Blockset

Deconstructing a Sample-Based Multichannel Signal
into Multiple Independent Signals

You can split a multichannel sample-based signal into individual sample-based signals (single-channel or multichannel) by using the Multiport Selector block in the Indexing library (in Signal Management). Any subset of rows or columns can be selected for propagation to a given output port.

Example: Deconstructing to Independent Signals.   In the model below, a six-channel sample-based signal (3-by-2 matrix) is deconstructed to yield three independent sample-based signals. Two of the output signals have four channels, and the third signal has two channels.

To build the model, make the following parameter settings:

• In Signal From Workspace, set Signal = randn(3,2,10)
• In Multiport Selector, set:
• Select = Rows
• Indices to output = {[1 2],[1 3],3}

The Indices to output setting specifies that rows 1 and 2 of the input should be reproduced at output 1, that rows 1 and 3 of the input should be reproduced at output 2, and that row 3 of the input should be reproduced alone at output 3.

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

Deconstructing Multichannel Sample-Based Signals

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