Re: [Discuss-gnuradio] cycle/period detection of a cyclic/periodic transmitter

2009-05-25 Thread kaleem ahmad
Dear All, A few weeks ago I was involved in a discussion about calculating the cycle time of an unknown system present in the area by sensing the spectrum with the help of RFX2400+USRP1 system. For details you may have a look on previous mails on this thread. As Firas suggested to choose a decim

Re: [Discuss-gnuradio] cycle/period detection of a cyclic/periodic transmitter

2009-04-22 Thread kaleem ahmad
Thanks Firas, It is clear and I will implement it and will come back soon hopefully with successfull results. Best Regards Firas A. wrote: > > > Hi, > >> On Wed, 4/22/09, kaleem ahmad wrote: >> >> Thanks Firas, >> >> But I can simply tell that it always transmit a fix packet (with >> bi

Re: [Discuss-gnuradio] cycle/period detection of a cyclic/periodic transmitter

2009-04-22 Thread Firas Abbas
Hi, > On Wed, 4/22/09, kaleem ahmad wrote: > > Thanks Firas, > > But I can simply tell that it always transmit a fix packet (with > bitrate=500kbps) of 1220 micro sec including preamble. It means that > after every T ms (T is repetition cycle time and can be a fixed > value from range: 1ms..

Re: [Discuss-gnuradio] cycle/period detection of a cyclic/periodic transmitter

2009-04-22 Thread kaleem ahmad
Thanks Firas, The transmitter which I want to detect the cycle for (You are correct that I want to find that repitition cycle). I am little bit confused to know what is the duty cycle of it. But I can simply tell that it always transmitt a fix packet (with bitrate=500kbps) of 1220 micro sec inclu

Re: [Discuss-gnuradio] cycle/period detection of a cyclic/periodic transmitter

2009-04-22 Thread Firas Abbas
Hi, > On Wed, 4/22/09, kaleem ahmad wrote: > > Hi All, > > I am trying to detect the cycle (or period) time of a cyclic data > transmitter by sensing the channel. The transmitter can be any general e.g. > FSK/ZigBee/Bluetooth etc, and transmitting a fixed packet after every 'T' > ms. I am int

[Discuss-gnuradio] cycle/period detection of a cyclic/periodic transmitter

2009-04-22 Thread kaleem ahmad
Hi All, I am trying to detect the cycle (or period) time of a cyclic data transmitter by sensing the channel. The transmitter can be any general e.g. FSK/ZigBee/Bluetooth etc, and transmitting a fixed packet after every 'T' ms. I am interested to detect this T using GNURadio/USRP. The idea is t