Portrait of Jean Baptiste Joseph Fourier Image removed due to copyright considerations Signals& Systems, 2nd ed. Upper Saddle River, N.J. Prentice Hall, 1997, p 179
SAMPLING We live in a continuous-time world most of the signals we encounter are CT signals, e.g. x(). How do we convert them into Dt signals x[n? Sampling, taking snap shots of x(t) every Seconds
Review Fundamentals of multibody dynamics Newton-Euler equation I;=-×工+n+nF =fw+ff Rely on free-body diagram. Constraint force involved Compact form m ti=-WiMti+w+wf