rising time
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I have 4 plots in a graph. Each of them have a starting point and a point at it which the peak shoots to a level and then falls down again. I want to find the time it takes to rise from starting point to the peak.
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Fangjun Jiang
2011년 10월 31일
stepinfo()
S = STEPINFO(Y,T,YFINAL) takes step response data (T,Y) and a steady-state value YFINAL and returns a structure S containing the following performance indicators:
* RiseTime: rise time
* SettlingTime: settling time
* SettlingMin: min value of Y once the response has risen
* SettlingMax: max value of Y once the response has risen
* Overshoot: percentage overshoot (relative to YFINAL)
* Undershoot: percentage undershoot
* Peak: peak absolute value of Y
* PeakTime: time at which this peak is reached.
sys=tf(1, [1 4 10]);
[y,t]=step(sys);
plot(t,y);grid on;
stepinfo(y,t,1/10)
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Fangjun Jiang
2011년 11월 1일
I don't understand. If you have 4 plots, you have to run stepinfo() 4 times. If you cannot mention the value of YFINAL, that is fine. You can use stepinfo(Y,T). But if you can't mention the value of Y, how could you do it with your own brain?
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