Fa2004 16.33311-5 Altitude controller Figure 6: Altitude controller time response for more complicated input The gain Kh must be kept very small since the low frequency poles are heading into the rhP Must take a different control approach to design a controller for the full dynamics Must also use the throttle to keep tighter control of the speed Example in Etkin and Reid, page 277. Simulink and Matlab code for this is on the Web pageFall 2004 16.333 11–5 0 50 100 150 200 250 300 −20 0 20 40 60 80 100 120 Altitude controller height time h c h Figure 6: Altitude controller time response for more complicated input. • The gain Kh must be kept very small since the low frequency poles are heading into the RHP. ⇒ Must take a different control approach to design a controller for the full dynamics. – Must also use the throttle to keep tighter control of the speed. – Example in Etkin and Reid, page 277. Simulink and Matlab code for this is on the Web page