thanks Josh, (yes.. I'm trying to move as near as possible to ofdm on the python level) before diving into c++ block designing.
I usually watch the doxygen.. but the point is: how can I be sure.. and learn details about the usage... eg. the question about gr_fft you've just kindly asked.. .. shall I just guess and then bother some experienced guy on the list? :) for example @ the moment I'm looking for a block that can map bytes to symbols.. but how can I learn if gr.chunks_to_symbols can be a candidate.. and how to use it? I mean: tutorial 9 is fine for the blocks it covers.. but for the others? best regards vincenzo On Mon, 2007-02-19 at 09:59 -0500, Josh Blum wrote: > Yes, change the boolean value to false for an ifft (sounds like ofdm). > > The best thing describing the gnu radio blocks is the class list > http://gnuradio.org/doc/doxygen/ > > The documentation is poor but it will tell you what blocks exist in > the project. > > -Josh > > On 2/19/07, Vincenzo Pellegrini <[EMAIL PROTECTED]> wrote: > > thanks Josh, > it worked fine! > > vincenzo > > PS > to obtain an ifft instead of a fft,i should use gr.fft_vcc > with the boolean argument "forward" set to false, right? > > PS2 > is there any other paper available describing the gnuradio > blocks, apart from DaweiShen's tutorial 9? > > 2007/2/18, Josh Blum <[EMAIL PROTECTED]>: > you should use gr.stream_to_vector(nbytes, > fft_size)-->fft-->gr.vector_to_stream(nbytes, > fft_size) > > nbytes will be 8 for complex data input/output > > -Josh > > Vincenzo Pellegrini wrote: > > hello, > > first of all thanks to everybody in the list for the > huge amount of > > suggestions about hard-disk reading speeds I was > provided with a few > > days ago. :) > > > > then another question: which is the wisest way to > convert a scalar > > stream to a vector stream and then back to a scalar > stream within a > > python flow graph.. if there is one, of course! > > > > what I'm trying to do is: > > > > source_c---> > gr.fft_vcc--->rest_of_the_flow_graph_c > > > > is this reasonable? > > > > > > best regards > > vincenzo > > > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org > > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > > > > > -- > Vincenzo Pellegrini > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio