Generating a sine wave in Simulink without any standard blocks

1
votes

I'm trying to generate a sine wave without using any standard blocks available in Simulink. Right now I'm using constants for phase angle and frequency but eventually I want to vary this and hence not using the standard blocks. Here is the Simulink model

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Here is the scope output

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The output is not a sinusoidal wave. What am I screwing up here? I'm using a fixed step auto solver.

1
matlabsignalssimulinktrigonometry
I'm guessing that you are using a too low sampling rate -- hence the distorted waveform. You need to shorten the length of a fixed-length time step in Simulink. – mikkola

1 Answers

0
votes

As I'm currently not in the possession of Matlab/Simulink so I can't construct a working example. But I think the best solution for your problem is using a Simulink function block. In this block you can define a Matlab function of your own design and it will allow you to generate any signal you want. Mathworks example