Thank you for the suggestions. I do in fact come from a very analog background, I have implemented many frequency counters in micro's, so I am thinking in this way. I will try the suggestions on FFT/frequency sinks.
On Thu, May 12, 2016 at 4:58 PM, Marcus Müller <marcus.muel...@ettus.com> wrote: > By the way, I can barely decipher your screenshot. I strongly recommend > using the screenshot functionality of your operating system instead of > using a camera to digitize the analog lightwaves that were generated from a > screen that converted the digital picture to light... > that being said, I don't really understand your question > > The time between rise and fall is known since it is plotting it on the > time axis, > > So: What is the very definition of "frequency"? Right, it's the rate at > which a periodic thing happens. > so you measure the time distance between two rising edges, and do 1/that, > and instantly have the frequency. > That's a very "analog measurement device" or "cycle counting" way of doing > this. > > oscilloscope calculates and displays a frequency number. > > Hm. What do *you* think the oscilloscope does? > Dan's recommendation was absolutely on-spot. Use a spectrum/fft sink. If > you don't understand what "spectrum" is, read a bit wikipedia :) That's > really the easiest way I could think of. > Other than that, read up on autocorrelation, and how to calculate it in a > DSP system. > > Best regards, > Marcus > > On 12.05.2016 22:38, Rob Croce wrote: > > OK thanks. I just need to display a number for the frequency of the > pulses. The time between rise and fall is known since it is plotting it on > the time axis, so I am wondering if there is anyway I can extract frequency > that way. Similar to frequency counting on a micro, or how an oscilloscope > calculates and displays a frequency number. > > On Thu, May 12, 2016 at 4:30 PM, Dan CaJacob <dan.caja...@gmail.com> > wrote: > >> I would need more details about what you're trying to accomplish, but my >> first reaction would be to attach an FFT GUI sink. >> >> On Thu, May 12, 2016 at 4:26 PM Rob Croce <rob.cr...@gmail.com> wrote: >> >>> Hi all. I have transient pulses that I am displaying using the >>> transient plot, and I am wondering how I can display the frequency of the >>> pulses. The duty cycle is similar for all pulses, just the frequency is >>> varying. Is there a simple way to do this? >>> >>> >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >> -- >> Very Respectfully, >> >> Dan CaJacob >> > > > > _______________________________________________ > Discuss-gnuradio mailing > listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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