Yufeng, Yes, I'm still looking at setting up BPSK, QPSK and 8PSK. I was however able to TX and RX DPSK and GMSK without the USRP.
However, I was wondering if you had the history of TX of PSK with GNUradio. In the past there was a block named BPSK.py but now it is not there. It seemed very similar to the Digital BERT example using a costas loop and MM clock recovery. Then there is a MPSK receiver that was added there after. It seemed to me like the natural progression was to add a MPSK transmitter or better yet hold to the schema with DPSK,GMSK and QAM and have a MPSK Mod and a MPSK Demod. Do you know why BPSK.py dissappeared and it was not replaced with a MPSK transmitter or MPSK Mod? I took a look at PSK.py and got confused because it seemed to only deal with Gray coding only.....what am I missing? Cheers, Jody On Wed, Mar 25, 2009 at 11:27 AM, yufeng wang <[email protected]> wrote: > Hi, Jody, > > This is Yufeng. I was also working on modulating a data sequence with > PSK(or QAM) modulation, and then transmitting with USRP. Have you been > able to find how to modulate a signal with PSK? > > > On Tue, Mar 10, 2009 at 9:31 AM, w w <[email protected]> wrote: > > Greetings, > > I'm wondering if you all could tell me if it is possible to set up and > > modulate a signal without the usrp? If so how do you insert the > carrier? > > For a BPSK siganl do you just multiply carrier by the modulated signal? > I > > also notice that gnuradio did at one time have a PSK modulator but it is > no > > longer available.....what took it's place? Without a PSK modulator, how > do > > you modulate signals like BPSK, QPSK, 8PSK.? > > > > Thanks, > > Jody > > _______________________________________________ > > Discuss-gnuradio mailing list > > [email protected] > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > > > > > -- > Best wishes, > > Yufeng >
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