Principles of Automatic Control
MIT OpenCourseWare offers this undergraduate course on feedback control systems, built around applications in aircraft and spacecraft. Lessons cover the properties and advantages of feedback, time-domain and frequency-domain performance measures, stability analysis, the Root Locus method, the Nyquist criterion, frequency-domain design techniques, and state space methods. Materials include lecture notes, problem sets, and exams from MIT's Department of Aeronautics and Astronautics, following the standard OCW format of free, self-paced access to real course content with no instructor interaction or certificate. The course assumes prior exposure to differential equations and linear systems, and builds toward designing controllers that keep dynamic systems, like a spacecraft's attitude or an aircraft's flight path, stable and responsive under feedback.