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The step response of the impulse response of a ramp function will be ________(a) a parabolic function(b) an exponential function(c) a sinusoidal function(d) a sinc functionI had been asked this question during a job interview.Query is from Impulse Response topic in chapter Control System Applications of MATLAB

Answer»

Correct choice is (a) a parabolic function

To explain I would say: The STEP response of a SYSTEM can be thought in the Laplace domain as MULTIPLICATION with 1/s. Now, the impulse response of ramp function is the ramp function itself while the step response of ramp function RESULTS in a PARABOLA.



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