Solution Manual Digital Control System Analysis And Design 3rd Ed Charles L Phillips H Troy Nagle Ra Better Link
Creating PID and lead-lag compensators. How to Use the Solution Manual Effectively
C. Observer-based control:
If you own a 4th edition, the 3rd edition solution manual still covers ~70% of the problems (problems are similar but renumbered). Use a cross-reference table found online. Creating PID and lead-lag compensators