You mentioned that x(t) is your input in DD2, and you use this value to calculate PID term. But I was wondering how do you get the value and which input it refer to? If you use this mathematical value in your equation, I think you need to put it in the table of symbols, so that the readers could understand what it is and where it comes from.
You mentioned that x(t) is your input in DD2, and you use this value to calculate PID term. But I was wondering how do you get the value and which input it refer to? If you use this mathematical value in your equation, I think you need to put it in the table of symbols, so that the readers could understand what it is and where it comes from.