Hi, I'm a project member of the global education network for satellite operations (Genso, www.genso.org) and currently working on gaining comparable link quality information when having an RX communication with satellites.
As we'll probably support GnuRadio on a broad base (both using a USRP or a soundcard as ADC) I hope that it can help me to get more valuable information out of it than possible when using traditional hardware radios and TNCs (what I currently get is the Signal strength reading on a very low sample rate (one second), and that's hardware dependent). As we're not the operator of the satellites, it is impossible to know the data we'll receive beforehand and make a comparison afterwards to calculate the bit error rate. So I have to count on information I can gain from the received signal characteristics. So I wonder if GnuRadio provides facilities to measure the signal (or carrier) to noise ratio (or the energy per bit per noise power spectral density) or the (approximate) bit error rate - or if it depends on the used blocks, or the ADC (if it's a soundcard or the USRP). I've read about possibilities to receive the RSSI when using the USRP, but it seems to depend on the daugtherboards (and unavailable when using a sound card). So I would appreciate _any_ possibility to gain information which helps me to determine the quality of a communicaton link using GnuRadio. Thank you very much in advance Bastian _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
