Now that I have a working GNU Radio-like base framework in Rust, I want to improve my understanding of DSP by implementing it. Like my current question, what a

Now that I have a working GNU Radio-like base framework in Rust, I want to improve my understanding of DSP by implementing it. Like my current question, what actually is the best way to "smoothen" the feedback loop in clock recovery? PID, IIR, FIR? And why? https://github.com/ThomasHabets/rustradio https://github.com/ThomasHabets/rustradio