Hello, I've been looking into the design details of the control-loop block. I stumbled upon the blog post of Tom (http://www.trondeau.com/blog/2011/8/13/control-loop-gain-values.html with the derivation https://static.squarespace.com/static/543ae9afe4b0c3b808d72acd/543aee1fe4b09162d0863397/543aee1fe4b09162d08633ac/1313345573084/control_loop_derivation.pdf) and also this article from TI: http://www.ti.com/lit/an/slyt169/slyt169.pdf.
Now looking at the schematics of the control loop in Tom's post and the TI article (figure 5), you notice a slight difference after the loop filter. In the TI article, there is delay (z^-1) followed by an accumulator. In the schematics of Tom's post, the delay block is directly integrated in the loop. Can somebody comment on these differences? Thanks Ruben _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
