On Fri, May 9, 2008 at 2:22 AM, Bastian Preindl <[EMAIL PROTECTED]> wrote:
> 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. If you use the USRP, you will obtain a complex baseband representation of your satellite signal. From this, you will need to implement a demodulator for the particular signal involved. From the output of the demodulator, there are several ways to estimate signal-to-noise ratio that do not require prior knowledge of the bit pattern. From the signal-to-noise ratio, you can estimate the theoretical bit error rate for the type of modulation in use. See: http://www.comsoc.org/comm/private/2000/oct/1681_48comm10-pauluzzi.html GNU Radio is very suitable for this sort of thing. -- Johnathan Corgan Corgan Enterprises LLC http://corganenterprises.com/ _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
