I am trying to model a robot (my question in robotics.SE), so that I may train it using some reinforcement learning techniques. I was wondering if I can compute an impulse response of a four wheel robotic chassis empirically? Or something similar that might help me model the robot. Does a thing like 'the impulse response of a robot' even make sense?
Since a single strobe of a PWM signal shall hardly cause any movement, but a steady stream of PWM signals will, can I consider the impulse response as an infinite impulse response that superposition to cause perceivable motion?
I am certain that the robot chassis is a non-linear system. Generally speaking, will impulse response make any sense on a non-linear system?