On Thu, Dec 12, 2013 at 03:54:29PM +0500, Maria Stevens wrote: > So, Only case 1 is working for me. I am not using any custom gnuradio-block in > my receiver. Major blocks in my demodulator chain consists of FIR filters, > gr_pfb_clock_sync_ccf and packet decoder along with some adders subtractors > etc. what is the difference caused by the same demodulator chain when reading > data directly from usrp source and from file source? is it because some of the > demodulator chain blocks are causing back pressure due to taking too much time > in processing but when run in real time it causes data loss during exchange of > samples between blocks. I am confused if in real time the > gr_pfb_clock_sync_ccf block or any other major block stucks in processing > during which samples are lost due to new incoming samples.
Are you observing overflows? If so, have you tried reducing the bandwidth and see if that helps? MB -- Karlsruhe Institute of Technology (KIT) Communications Engineering Lab (CEL) Dipl.-Ing. Martin Braun Research Associate Kaiserstraße 12 Building 05.01 76131 Karlsruhe Phone: +49 721 608-43790 Fax: +49 721 608-46071 www.cel.kit.edu KIT -- University of the State of Baden-Württemberg and National Laboratory of the Helmholtz Association
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