How do I implement a script using system objects?

Hello, I am new to Simulink so please go easy on me. I am trying to implement this particular example using system objects from the related toolboxes.

https://www.mathworks.com/help/phased/ug/integrated-sensing-and-communication-2-communication-centric-approach-using-mimo-ofdm.html

I have tried using different transmitters available but it does not seem to work. Any idea to create the Tx/Rx arras and set their locations? Thanks.

Answer 1

[NVSL]

Hey Ryan,

I noticed you're working on implementing the example of "Integrating Sensing and Communication" and are having some trouble creating Tx/Rx arrays and setting their locations.

You can create Tx/Rx antenna arrays as ULA system objects using the "phased.ULA" function. You can find the documentation for this here:

https://www.mathworks.com/help/phased/ref/phased.ula-system-object.html

By default, the elements are placed along the y-axis, centered at the origin, with the spacing you specify. However, if you want to change the location or orientation, you'll need to specify that when you use the array in a scenario.

In the example mentioned in your question, the propagation channel between the transmitter and receiver is modeled using "phased.ScatteringMIMOChannel" as shown below:

channel = phased.ScatteringMIMOChannel('CarrierFrequency', carrierFrequency, 'TransmitArray', txArray,...
    'TransmitArrayPosition', txPosition, 'ReceiveArray', rxArray, 'ReceiveArrayPosition', rxPosition,...
    'TransmitArrayOrientationAxes',txOrientationAxis, 'ReceiveArrayOrientationAxes', rxOrientationAxis,...
    'SampleRate', sampleRate, 'SimulateDirectPath', true, 'ScattererSpecificationSource', 'Input Port');

To update the location of the Tx and Rx arrays, you can use the Name-Value arguments "TransmitArrayPosition" and "ReceiveArrayPosition" with the new locations. This way, you can use the updated positions during simulation, depending on your scenario.

Hope this helps!