On Fri, Mar 16, 2007 at 10:10:28AM +0100, anmar wrote: > hi, > > How can i set the time of the signal between sin and cos. > in the file test_usrp_standard_tx.cc when i change the ampl the ampl > changes. > pattern[2*i+1] = host_to_usrp_short ((short) (ampl * sin (2*M_PI*i > /PERIOD))); > but when i change it to > pattern[2*i+1] = host_to_usrp_short ((short) (ampl * sin (2*M_PI*i > /PERIOD+or- X))); nothing happens, the signal stay normal Sin. > > if this is not the place to change the signale output where should i > look at. > in python we can chose sin, cos or const. but nothing in between . > > how can i do that? > > Thanks, > > Anmar
First off I suggest that you not use test_usrp_standard_tx.cc as an example to emulate. It doesn't handle daughterboards, and was originally written to test the USRP before the rest of the GNU Radio framework was written. You can generate pretty much anything from python. I'm not sure what you are looking for. If you want to independently genereate the real and imaginary components of the complex baseband signal, you are free to do that. You can then combine the two float streams into a complex stream using u = usrp.sink_c(...) i = <generate I somehow> q = <generate Q somehow> f2c = gr.float_to_complex() fg.connect(i, (f2c, 0)) fg.connect(q, (f2c, 1)) fg.connect(f2c, u) Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
