On 03/25/2014 05:00 PM, Azza Ben Mosbah wrote: > In order to calculate the SNR at the receiver, I have generated a QPSK > signal, sent it with an USRP through a canal and then received it with > another USRP. > So, I have used The "MPSK SNR Estimator" block at the receiver to > monitor the SNR values. But values are not correct, I have tried "MPSK > SNR Estimator Probe" block, but values still not correct. > > I am wondering what is the proper way to use "MPSK SNR Estimator" block? > or if there is another block or method to retrieve SNR values correctly? > So that I can find correct results. > Any help is appreciated. Thank you.
Estimating SNR is a bit of a science. How do you know your SNR values are incorrect? In general, our SNR estimators have been tested a lot and should work. Post your rx flow graph and your results, that way we can tell what you've been doing. M _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
