I’m familiar with feedback control and I’ve used PID controlers in the design of servo-hydraulic systems. That wasn’t the situation the blog post described. If you have delays, or hysteresis, or any other reason for a non-zero impulse response, you lose the vanishing correlations which made the problem interesting.
I’m familiar with feedback control and I’ve used PID controlers in the design of servo-hydraulic systems. That wasn’t the situation the blog post described. If you have delays, or hysteresis, or any other reason for a non-zero impulse response, you lose the vanishing correlations which made the problem interesting.