Re: [Discuss-gnuradio] Transmitting higher power preamble
Hi Brian, Thank you for the reply. I apologize but I could not very well understand the method you suggested. I have not explored much with GNU radio. Could you elaborate more and help me in this regard. I appreciate your time and help. Regards, Neha. On Sun, Apr 11, 2010 at 10:12 AM, Brian Padalino wrote: > On Sun, Apr 11, 2010 at 10:27 AM, neha kochar > wrote: > > Hi all, > > > > Is it possible with GNU Radio to create a transmitter packet that has a > > higher power preamble at the beginning of the packet? This could allow > the > > receiver to properly detect incoming packets. The data portion of this > > packet could have reduced transmit power level. I am currently using > > benchmark tx and rx files. > > The magnitude of the transmitted complex vector determines the output > power (while in the linear range). If you set this magnitude to the > value that corresponds to the maximum power output level of the USRP > (just before clipping), you should be able to change it such that the > data portion is scaled to a lower level. > > Actually doing this is left as an exercise for the reader. > > > Regards, > > Neha. > > Good luck! > > Brian > ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Transmitting higher power preamble
On Sun, Apr 11, 2010 at 10:27 AM, neha kochar wrote: > Hi all, > > Is it possible with GNU Radio to create a transmitter packet that has a > higher power preamble at the beginning of the packet? This could allow the > receiver to properly detect incoming packets. The data portion of this > packet could have reduced transmit power level. I am currently using > benchmark tx and rx files. The magnitude of the transmitted complex vector determines the output power (while in the linear range). If you set this magnitude to the value that corresponds to the maximum power output level of the USRP (just before clipping), you should be able to change it such that the data portion is scaled to a lower level. Actually doing this is left as an exercise for the reader. > Regards, > Neha. Good luck! Brian ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Transmitting higher power preamble
Hi all, Is it possible with GNU Radio to create a transmitter packet that has a higher power preamble at the beginning of the packet? This could allow the receiver to properly detect incoming packets. The data portion of this packet could have reduced transmit power level. I am currently using benchmark tx and rx files. Regards, Neha. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
