Re: [Discuss-gnuradio] Costas Loop SNR Port Usage

2015-09-17 Thread Richard Bell
OK. I'm seeing pretty good estimates myself, for the few input noise std devs I've tried. I'm glad I didn't have to write this myself. Thanks, Rich On Thu, Sep 17, 2015 at 12:12 PM, Tom Rondeau wrote: > On Thu, Sep 17, 2015 at 2:46 PM, Richard Bell > wrote: > >> It's hard to tell from the slid

Re: [Discuss-gnuradio] Costas Loop SNR Port Usage

2015-09-17 Thread Tom Rondeau
On Thu, Sep 17, 2015 at 2:46 PM, Richard Bell wrote: > It's hard to tell from the slide, but are you feeding the Estimator the > same data that is fed into the Costas loop? > > Rich > Yes, in this case, that's the way it's configured. For one, I use this to show how to control upstream blocks th

Re: [Discuss-gnuradio] Costas Loop SNR Port Usage

2015-09-17 Thread Richard Bell
It's hard to tell from the slide, but are you feeding the Estimator the same data that is fed into the Costas loop? Rich On Thu, Sep 17, 2015 at 11:28 AM, Tom Rondeau wrote: > On Thu, Sep 17, 2015 at 2:19 PM, Richard Bell > wrote: > >> Hi all, >> >> I've attached an image of my flowgraph and t

Re: [Discuss-gnuradio] Costas Loop SNR Port Usage

2015-09-17 Thread Tom Rondeau
On Thu, Sep 17, 2015 at 2:19 PM, Richard Bell wrote: > Hi all, > > I've attached an image of my flowgraph and the figures it produces to > coincide with the following. > > I would like to do two things to a BPSK radio implementation. One is feed > an SNR estimate to the Costas Loop to improve per