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Unformatted text preview: EE221A Linear System Theory Problem Set 5 Professor C. Tomlin Department of Electrical Engineering and Computer Sciences, UC Berkeley Fall 2011 Issued 10/18; Due 10/27 Problem 1: Dynamical systems, time invariance. Suppose that the output of a system is represented by y ( t ) = integraldisplay t −∞ e − ( t − τ ) u ( τ ) dτ Show that it is a (i) dynamical system, and that it is (ii) time invariant. You may select the input space U to be the set of bounded, piecewise continuous, realvalued functions defined on ( −∞ , ∞ ). Problem 2: Jacobian Linearization I. Consider the now familiar pendulum equation with friction and constant input torque: ˙ x 1 = x 2 ˙ x 2 = − g l sin x 1 − k m x 2 + T ml 2 (1) where x 1 is the angle that the pendulum makes with the vertical, x 2 is the angular rate of change, m is the mass of the bob, l is the length of the pendulum, k is the friction coefficient, and T is a constant torque. Considering T as the input to this system, derive the Jacobian linearized system which represents an approximate model...
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This note was uploaded on 12/09/2011 for the course EE 221A taught by Professor Clairetomlin during the Fall '10 term at University of California, Berkeley.
 Fall '10
 ClaireTomlin
 Electrical Engineering

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