On 10/26/2010 10:17 PM, songsong gee wrote:
Currently I am trying to make an ASK (Amplitude Shift Keying) I use GNURadio Companion, The program gets the input from file source and multiplies it with signal source. And I monitors via Scope and FFT plots You can see a diagram ASK.grc (image)<http://goo.gl/0WHt> And the result is somewhat weird. Plots (image)<http://goo.gl/UcF9> It seems sinusoidal, but the shape looks like sawtooth!
You are multiplying random 1s and 0s by a sinusoid. And you have a sinusoid that is randomly either 0 or sine(x). It looks correct!
Perhaps you want to increase the temporal width of your symbols? In that case, I suggest using the repeat block.
_josh _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
