On 07.10.2015 08:45, M. Ranganathan wrote:
> Hello,
>
> I put together a new block which I want to string together with other
> blocks to create a pipeline which I want to test. I want to unit test
> things out with a known stream of I/Q values from a simulated front end
> and check that the pipel
Ah, yes. I suspect you don't have an AGC in your flowgraph? Whenever you're
thresholding against some static number, you need to be sure your input
signal is set to a known amplitude, which is what the AGC does for you. If
you put an AGC in the chain you should see peak values that get close to
you
Last time I replied to the mailing list, did it go directly to your email?
If so, I will double check next time to make sure it goes to the list.
Your explanation makes sense, with the limited knowledge of filtering that
I have.
I changed the filter length on my RX side for the rrc_taps and nothi
Previous email sent without me telling it to. Picking up from "Fuction
coped below:"
firdes.root_raised_cosine(nfilts, nfilts, 1.0/float(sps), eb, 5*sps*nfilts)
The first nfilts is just gain of your filter. The next two paraters should
work out to be the number of samples per symbol of the upsamp
Hello,
I put together a new block which I want to string together with other
blocks to create a pipeline which I want to test. I want to unit test
things out with a known stream of I/Q values from a simulated front end and
check that the pipeline is working correctly.
I see a file descriptor sour
Logan,
I recommend you keep this conversation on the mailing list. You are more
likely to get answers that way.
The Constellation Modulator has an RRC filter built into it. That is what
the Samples/Symbol and Excess BW paramters of that block are for. Your job
now is to make the upsampled by nfil
Rich,
If you could send me that paper, I would really appreciate it. So I'm
looking at the test_corr_est.grc file and the only place I see the rrc_taps
being used is within the polyphase clock sync, which is on the RX side.
Should there be a rrc filter on the TX side as well?
Logan Washbourne
Ele
