Lecture #5: Introduction to robust performance

Date: Monday, 15 Apr 96

Announcements

• Group meetings in 214B Thomas
• Any questions about how to implement controllers on the ducted fan?

A. Basic picture: robust performance for the ducted fan
   1. Block diagram of tracking controller with noise, uncertainty
   2. Reference: DFT

B. Nominal performance + robust stability -> robust performance
   1. Nominal performance - weighted sensitivity
   2. Robust stability - small gain theorem
   3. Robust performance - not just the sum of the parts
      a. Necessary and sufficient conditions
      b. Nyquist plot interpretation


Next time: ducted fan example
Lab meeting: Introductions + answer questions