Yep! Done. fred harris' book helped the most.
Thanks
On Tue, Jun 28, 2011 at 12:25 PM, Colby Boyer colby.bo...@gmail.com wrote:
Look at the source code used to generate the raised cosine, gr_firdes.h
should point to it. Making your own should follow directly from that; also
the wikipedia
On Tue, Jun 28, 2011 at 08:41:24AM -0400, Randy Westlund wrote:
Problem solved. It works if I launch with the command `gnuradio-companion'
and
not with `grc.' I still don't know why that changed overnight, but now this
machine launches with the first command and my other machines only
Could somebody post the whole configure call once the vesperix fftw lib was
installed?
I'm giving this a try here myself but want to make sure I'm on the right
track.
./configure --disable-volk --disable-usrp2 --disable-usrp1
--disable-gr-video-sdl --enable-shared CFLAGS=-march=armv7-a
That is the best source currently in my opinion especially his discussion of
HOW BAD RAISED COSINE FILTERS ARE AS NYQUIST FILTERS FOR DATA TRANSMISSION.
Bob
On Jun 29, 2011 4:11 AM, John Andrews gnu.f...@gmail.com wrote:
Yep! Done. fred harris' book helped the most.
Thanks
On Tue, Jun 28,
Hi,
the simple GRC in the attachment creates lots of underflows on our E100
(U on console)
and dropouts when looking at the spectrum.
Is this as expected or how can this overload of the embedded Linux be
avoided?
Thanks,
Ralf
?xml version='1.0' encoding='ASCII'?
flow_graph
timestampWed
Hi,
we are trying to use DPSK2 modulator and demodulator during our first
trials.
As far as we can see there is hardly any documentation available on this.
We would appreciate a few explaining words from somebody who knows how to
configure the demodulator so that data is correctly received.
On 29/06/2011 9:11 AM, Ralf wrote:
Hi,
the simple GRC in the attachment creates lots of underflows on our
E100 (U on console)
and dropouts when looking at the spectrum.
Is this as expected or how can this overload of the embedded Linux be
avoided?
Thanks,
Ralf
Well, for one, 60Khz isn't a
I just solved this problem!
The reason is that in gnuradio-examples, UDP default payload size is set to
1471. In gr_udp_source.cc, all received data will be round down to a
multiple of d_itemsize. Since sizeof_gr_complex is 8, so only 1464 Bytes are
received correctly, while the left 7 byte
On 29/06/2011 12:12 PM, Johnathan Corgan wrote:
On Tue, Jun 28, 2011 at 21:38, Marcus D. Leech mle...@ripnet.com
mailto:mle...@ripnet.com wrote:
I'll make the observation that there's just got to be a better
buffer allocation policy than the existing one. Should it
*really* take
On Tue, Jun 28, 2011 at 21:38, Marcus D. Leech mle...@ripnet.com wrote:
I'll make the observation that there's just got to be a better buffer
allocation policy than the existing one. Should it *really* take
Gigabytes of VM, and hundreds of MB of RSS to execute the flow-graph I've
attached?
On Wed, Jun 29, 2011 at 07:44, Zhen zkon...@yahoo.com.cn wrote:
The reason is that in gnuradio-examples, UDP default payload size is set to
1471. In gr_udp_source.cc, all received data will be round down to a
multiple of d_itemsize. Since sizeof_gr_complex is 8, so only 1464 Bytes are
I don't think you have to change the parameters you're giving to
./configure for gnuradio. You actually want to change the parameters
used by ./configure for fftw.
This worked for me:
./configure --enable-single --enable-neon --enable-shared
CFLAGS='-fPIC -mcpu=cortex-a8 -mfpu=neon
On Wed, Jun 29, 2011 at 09:24, Marcus D. Leech mle...@ripnet.com wrote:
**
On 29/06/2011 12:12 PM, Johnathan Corgan wrote:
GNU Radio achieves its streaming performance in part due to a circular
buffer design that maps the same physical memory twice in the virtual memory
map for the process,
Hi Marcus I got the answer for the question in this thread.Actually I was
using an outdated version of UHD which doesn't had USRP2 firmwares.Hence
during configure it was showing the above error.
I just downloaded the latest images and firmwares.
I need to ask that whether it is needed to
On 06/29/2011 06:01 PM, sumitstop wrote:
Hi Marcus I got the answer for the question in this thread.Actually I was
using an outdated version of UHD which doesn't had USRP2 firmwares.Hence
during configure it was showing the above error.
I just downloaded the latest images and firmwares.
I need
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