Each byte seems to contain 4 1 bit I/Q samples. This is the text from the readme:
"The output file size can be reduced by using "-b 1" option to store four 1-bit I/Q samples into a single byte." Ralph. > -----Original Message----- > From: discuss-gnuradio-bounces+ralph=schmid....@gnu.org > [mailto:discuss-gnuradio-bounces+ralph=schmid....@gnu.org] On Behalf Of > Marcus Müller > Sent: Friday, March 11, 2016 2:53 PM > To: discuss-gnuradio@gnu.org > Subject: Re: [Discuss-gnuradio] lack of understanding the different formats > to store samples > > In what format are your 1bit samples? I'd assume they are just the fact > whether a byte is 0x00 or 0x01; in that case, just use unpacked to packed. > > On 03/11/2016 10:24 AM, Ralph A. Schmid, dk5ras wrote: > > Hi, > > > > Being an RF guy I must admit that I am somehow lost in the different > > ways how samples are stored in files. I stumbled over this question > > when I experimented with https://github.com/osqzss/gps-sdr-sim. It > > works great when using 16 bit samples and using a simple two-block grc > > file, feeding them directly from a file source to the UHD sink. > > However the 1 bit variant sounds promising, as the files are much > > smaller this way and also the generation of them runs much faster. > > > > It must only be a matter of finding the right blocks and the right > > settings to convert this, but my google search was highly confusing, > > most probably due to different names for the same thing. > > > > So I do not only ask for how to use "four 1-bit I/Q samples into a > > single byte" (taken from the readme of the gps-sdr-sim), but for a > > more general overview how this stuff is done, to be prepared for other > > upcoming questions of this kind :) Up to now I solved those issues by > > an educated guess or even by try and error, what is not very satisfying... > > > > Ralph. > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
