Handout 2: Gain and Phase margins Eric feron Feb6.2004 Nyquist plots and Cauchys principle 土S Let H(s be a transfer function. eg H(s= (s+1)(s+3 Evaluate H on a contour in the s-plane.(your plots here)Handout 2: Gain and Phase margins Eric Feron Feb 6, 2004 Nyquist plots and Cauchy’s principle s2 + s + 1 Let H(s) be a transfer function. eg H(s) = (s + 1)(s + 3) Evaluate H on a contour in the s­plane. (your plots here) 1