How can i detect the amplitude of a sinusoidal signal in Simulink ?

Hello, I am working on a project in Simulink ... i want to extract the amplitude of a sinusoidal signal as it shown below ... how can i extract the value of the amplitude in simulink ? the frequency of the signal is variant with time .Thanks in advance

Answer 1

[Samar]

Hi @El Mehdi FADEL,

The amplitude can be found using the “minmax” block in Simulink. The block returns the maximum and minimum value of the signal which is given as input. You can read more about this function through the link given below:

www.mathworks.com/help/simulink/slref/minmax.html

This question seems very much like the problem given below. I believe you can refer to the answer given in this question for better understanding:

www.mathworks.com/matlabcentral/answers/671-calculating-the-amplitude-of-a-sine-wave-in-simulink

Regards,

Samar