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Is it possible to have RF blocksets with vector-based analysis in Simulink?

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mostafa
mostafa le 11 Mai 2018
Hi all,
This is well-known that RF component simulation in Simulink has a lack of high-speed analysis. In particular, I am trying to analyze a signal which is generated at 100 MHz sampling rate. The signal generation is done with the usual Simulink blocks by using frame-based generation. I mean, the output of the generator is a frame of length 6400 samples which has to be unbuffered prior to the conversion to RF signals using "inport" block of RF blockset. This unbuffering means that the simulation runs the RF part sample by sample instead of possible vector processing and making the simulation at least 10 times slower than the case without RF blockset.
As an example, I am attaching a Simulink file with simple Simulink flowgraphs. One flowgraph contains a sine wave generator, gain, and a time scope and the second flowgraph contains the same sine wave generator and the scope with a RF blockset part in between. The solver is set to the "Fixed-step". Because there is no way to have a vector analysis in RF blockset, the simulation duration for the flowgraph with RF blockset is very slow. Imagine a very complicated simulation with lots of blocks in it in which it is impossible to use RF blockset.
How could I speed up the simulation with RF components?
Best, Mostafa

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