I think this means creating a new block as I cannot come up with a quick
way of implementing the above.
In any case, thanks much.
-George
On 12/5/12 12:27 AM, Brian Padalino wrote:
You'll need to figure out how to flush the filter state and send
actual 0+0j samples through. Maybe you can set a flag and multiply
the samples coming out by 1 or 0 depending if you are flushing or not?
Brian
On Wed, Dec 5, 2012 at 12:11 AM, George Sklivanitis
<george.sklivani...@gmail.com <mailto:george.sklivani...@gmail.com>>
wrote:
The filter is consisted of 55 taps.
I tried by sending zeros. Though zeros are interpreted in -1's
from the modulation mapping block.
Moreover, the zeros will be taken into account as symbols to be
shaped, therefore, the same thing will happen.
-George
On 12/5/12 12:07 AM, Brian Padalino wrote:
Have you taken into account the group delay of the filter? How
long is your filter? Try sending zeroes at the end to flush your
filter state?
Brian
On Tue, Dec 4, 2012 at 11:35 PM, George Sklivanitis
<george.sklivani...@gmail.com
<mailto:george.sklivani...@gmail.com>> wrote:
Hello all,
I have a question applying to everybody that have tried
transmitting symbols in different kinds of modulation (BPSK,
QPSK, GMSK etc).
I am using the following configuration in GNU Radio ( random
source block -> bytes to symbols -> SRRC block -> file sink)
The attached figure plots the generated symbols (+1,-1) with
red color along with the upsampled SRRC waveform (blue)
For some reason that I am not able to understand the last
8-bits do not have a correspondence with the waveform
created. In other words
the waveform is "cut" at the last byte.
Can anyone help me with the above.
Thanks,
-George
--
Sklivanitis Georgios
PhD Student
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--
Sklivanitis Georgios
Ph.D Student
Communications Division,
Department of Electronics and Electrical Engineering
University at Buffalo, The State University of New York
North Campus, Office 205, Furnas Hall
Buffalo, NY 14260
www.acsu.buffalo.edu/~gsklivan <http://www.acsu.buffalo.edu/%7Egsklivan>
--
Sklivanitis Georgios
Ph.D Student
Communications Division,
Department of Electronics and Electrical Engineering
University at Buffalo, The State University of New York
North Campus, Office 205, Furnas Hall
Buffalo, NY 14260
www.acsu.buffalo.edu/~gsklivan
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