Real-Time Filter

This example shows a real-time filter built using DSP System Toolbox™ and Simulink Desktop Real-Time™. The unfiltered signal is acquired by the analog input, passed through a filter designed by DSP System Toolbox and finally sent to analog output. Both the unfiltered and filtered signals are shown in real-time using the Scope block.

Note: To run this model, you must have a data acquisition board connected to your computer. This model requires DSP System Toolbox.

Run Model in Normal Mode

  1. Open the Analog Input and Analog Output blocks and select your data acquisition board. If there is no board installed, install it by clicking the Install new board button.

  2. To switch to normal mode if needed, double-click the orange button in the model.

  3. To start the real-time execution, on the Simulation tab, click Run.

Run Model in External Mode

  1. Open the Analog Input and Analog Output blocks and select your data acquisition board. If there is no board installed, install it by clicking the Install new board button.

  2. To switch to external mode if needed, double-click the orange button in the model.

  3. To start the real-time execution, on the Desktop Real-Time tab, click Run in Real Time. The model builds, connects to Simulink in external mode, and starts.

Open the Model

open_system(fullfile(matlabroot,'toolbox','sldrt','sldrtexamples','sldrtex_filter'));

Close Open Scopes

close_system(find_system(gcs ,'BlockType', 'Scope'));

Clean Up Model

clear
close all
bdclose all

See Also