[Discuss-gnuradio] Polyphase clock sync ccf symbols needed ?

[Sam mite]

Hi list,
 

I want to calculate the number of symbols taken by my Polyphase clock sync ccf block after which it locks. Although I am getting 0 BER (except at start) but I want to know after how many symbols loop get lock. And then by varying different parameters I want to observe the lock time/symbols needed.   From which plot I can get this information and how? . Current parameters set are:

Sample/symbpol= 4

Loop BW= pi/100

damp factor= 0.707
filter size = 32

output sps = 1

max rate dev = 1.5

initial_phase=16

Phase plot is showing some sinusoidal output. Attached are the two phase plots. phase2.jpg is zoomed in version of phase1.jpg.

Thanks ahead of time.

--
Best Regards,

Sam

phase1.png
Description: PNG image

phase2.jpg
Description: JPEG image