Re: [Discuss-gnuradio] anyone know what is the theory of the implementation of pll_freqdet_cf

Not sure. Just lock to one of them and another as interference. If interference after loop filtering is small (out of loop bandwidth) it can keep locking.

在 2019年1月11日星期五，wu jo <john.wu.888@hotmail.com> 写道：

Hi,

thanks. i think i have figured out it from the source. i think this block only works for a clean single frequency. if there are 2 or more frequency in the input signal it will not detect any of them, right?

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发件人: WarMonkey <luoshumymail@gmail.com>
发送时间: 2019年1月11日 3:24
收件人: wu jo
抄送: discuss-gnuradio@gnu.org
主题: Re: [Discuss-gnuradio] anyone know what is the theory of the implementation of pll_freqdet_cf

 

http://ricesimulink.groups.et.byu.net/pll.phtml

在 2019年1月8日星期二，wu jo <john.wu.888@hotmail.com> 写道：

Hi ALL,

I am reading a block that using pll_freqdet_cf. it said pll_freqdet_cf detect a frequency then lock to it. but what is the theory of the impletation of that? anyone can share the knowledge?

Best Regards