'Modeling and Simulation of MIMO RF Receiver Including Beamforming'

In the example model 'Modeling and Simulation of MIMO RF Receiver Including Beamforming' I was learning the model by running the simulation. For my analysis I changed the frequency F0 from 5GHz to 28 GHz. I changed the frequency tones in the RF configuration block accordingly like shown in image or even if I select automatically select fundamental tones

and when I run I recieve this error message ''An error occurred while running the simulation and the simulation was terminated

Caused by:

• ['simrfV2_mimo_antenna/Receiver/RF_Receiver/Configuration/Solver Configuration']: Delay history is too long. Decrease the delay time or increase the time step. ''

Can someone tell me where and what to change?

Answer 1

[Rhea Chandy]

Hi Ashwath

Have you tried changing the delay time or the time step as the error message suggests? This documentation will provide you more info on what parameters to change: https://www.mathworks.com/help/simrf/ref/configuration.html

If it doesn't solve the issue, please share the model with the modifications that you're working on so I can take a look. I tried to reproduce the issue with the frequency F0 as 28 GHz and the fundamental tones and harmonies that you used, but I wasn't getting the same error.

However, I did get that error "Delay history is too long. Decrease the delay time or increase the time step. ''" when F0 was set at the default value.