This worked good, but with usrp its still no output, I'm working on that.
As i'm student, my project is on gsm/gsm-bts .
Can I implement this modulation scheme for for physical/L1 layer of gsm.
Are there any modules available for gsm frame and burst, for L2,L3 layers.
Thank you all
Ank
And here's a flowgraph with some of the recommendations above (attached).
-John Malsbury
On Fri, Mar 28, 2014 at 12:12 AM, John Malsbury wrote:
> To expand on Martin's comments, here are some of the issues that *could*
> be present:
>
>- Add a mult_const block or otherwise reduce the amplit
To expand on Martin's comments, here are some of the issues that *could* be
present:
- Add a mult_const block or otherwise reduce the amplitude of the i/q
signal going to the usrp_sink from +/- 1.0 to 0.5 or 0.7. This ensures you
are not non-linear in the transmitter.
- tx and rx_gain
Lot of people around here at IIT Bombay also complain that there is no data
at the output of packet decoder.
Try replacing the random source (binary output) with a signal source(set it
to float). And try to plot the output of packet decoder(float output) in a
gui sink. That should work, because th
Thanks Martin, i tried with replacing uhd with channel model, I had good
signal at the receiver after gmsk_demodulator but I'm facing the same
problem i.e with packet decoder no out put after here.
Even I tried with removing uhd and directly connecting them even though I
have the same problem lik
On 03/26/2014 12:30 PM, Ank wrote:
> Hello all,
>I'm working on gmsk transmitter and receiver past 6 months , the problem
> that I'm facing is in the packet decoder.
>
> I tried with wav file and signal source it worked good.
>
> my block is of this type
>
>
> Random_source=>Packet_enc
Hello all,
I'm working on gmsk transmitter and receiver past 6 months , the problem
that I'm facing is in the packet decoder.
I tried with wav file and signal source it worked good.
my block is of this type
Random_source=>Packet_encoder=>gmsk_modulator=>rational_resamlper_1=>uhd_sink
