On Wed, Sep 10, 2008 at 11:46:26PM -0600, Gnu Radio Explorer wrote: > Hi, > I am new to GNU radio and want to experiment. From the mailing lists, I > understood that the carrier frequency offsets change over time but that > those offsets are within +/- 20ppm of the center frequency. Suppose I use > two USRP boards; one for transmission and another for reception of signals. > I want to know how I can read the carrier frequency of the transmitted > signal on the receiver side through a python or C++ program. Is there any > program to do this? Or, which library routine can I use for this purpose? > > Appreciate any kind of help you may provide on this. > > Thanks. > > G.
This is a FAQ that needs an answer. Can someone please write something up on carrier tracking and symbol timing recovery and post it to the wiki? Bottom line: there will always be a frequency offset between any two radios and part of the receiver's job is to handle it. There's a ton of literature on this as well as complete text books. In the simplest case it's a PLL to track the carrier, but oftentimes it's more complicated than that. Eric _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
