> I am using Flex-2400 boards and the received signal is ideally at baseband
> which in fact is not possible because, of various factors. Now, we have a
> signal that has a center frequency 'fc' which is not 0Hz. Assuming the
> costas to lock at this carrier I can achieve my goal. Isn't it right?
>
> Hi :
> Few days ago i typed the following commands to install the BBN 80211
> [r...@no1 bbn_80211]#./configure
> [r...@no1 bbn_80211]#./make
> [r...@no1 bbn_80211]#./make check
> [r...@no1 bbn_80211]#./make install
>
> and the info that the system showed did not seem to be
It's more like this: I want to use a block that I wrote in grc without
going through make install.
On Fri, May 22, 2009 at 5:56 PM, Eric Blossom wrote:
> On Fri, May 22, 2009 at 05:36:16PM -0400, Tom Lutz wrote:
>> Is there an easy way to test out my code modifications without
Is there an easy way to test out my code modifications without doing
'make install'? It takes so long...
Thanks,
Tom
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I believe there was some discussion recently on this, and I'd like to
hear more about what everyone thinks...
I need to recover bits from a binary data stream, and I'm wondering if
there is something better than the M&M loop to do so, as I have many
samples per symbol.
I didn't see any existing b
I was having a very difficult time trying to get a Costas Loop to work
yesterday for order=2. I discovered, by the end of the day, several
things:
1. Min and Max frequency are in Radians per Sample (the documentation
says 'normalized', but I wasn't sure whether it meant cycles/sample or
radians/s
Awesome! Thanks for the info. I don't think I'm using the fft
filters, so I'll give that a shot.
Tom
On Tue, May 19, 2009 at 12:05 PM, Eric Blossom wrote:
> On Tue, May 19, 2009 at 08:26:18AM -0400, Tom Lutz wrote:
>> This may be a somewhat banal question, but w
This may be a somewhat banal question, but what would be the optimal
hardware/software configuration needed to leverage the power of
gnuradio?
Core i7 versus Core2 Duo versus Other (maybe cell)?
64-bit Linux versus 32?
Any hardware acceleration/DSP cards?
Amount/type of RAM?
While running some fl
On Fri, May 15, 2009 at 10:49 AM, Eric Blossom wrote:
> On Fri, May 15, 2009 at 12:39:19PM +, feldmaus wrote:
>> Hi All,
>>
>> i am read something about "sending data over tcp".
>> as i can see in grc there is only an udp sink.
>>
>> Is there still a tcp sink ?
>
> No need. Use python to open
Would someone mind explaining how to appropriately use the dbpsk
modulator, given a desired bit rate and carrier frequency? I can't
seem to figure out how excess_bw and samples_per_symbol affect the
parameters I ultimately want to set (bit rate and carrier freq).
Thanks,
Tom
___
> This might work on x86 machines, but isn't safe on machines
> with weak memory ordering across processors (e.g., PPC, Itanium).
> You'd need to introduce architecture specific memory barriers.
>
> Can you put the mutex at a higher level (e.g., in the object that
> has the gr_oscope_guts)?
>
> Eri
>
>
> What's worse is, the oscope program sometimes randomly freezes up, so I
> have to force quit the program to close it.
> -Ankit
It may be overloaded with data. Unable to keep up with the data flow,
the GUI freezes.
Try ./usrp_oscope.py -n 5
...or pick another number greater than 1 and see
>
> Please use the boost mutexs:
>
> #include
>
> boost::mutex m; // the mutex
>
> boost::mutex::scoped_lock guard(m)// the scoped guard
>
> Eric
>
Would it severely affect performance to create a boost::mutex::scoped_lock
inside the function gr_oscope_guts::process_s
On Tue, May 12, 2009 at 4:09 PM, Eric Blossom wrote:
> On Tue, May 12, 2009 at 03:22:47PM -0400, Tom Lutz wrote:
> > I'm editing some of the .cc files and would like to know the preferred
> > method for performing thread synchronization in C++ code. In particular,
> I
&
I'm editing some of the .cc files and would like to know the preferred
method for performing thread synchronization in C++ code. In particular, I
noticed that the set and get methods that are called on the gr_oscope_guts
class originate from a different thread then that of process_samples, and
thi
I searched the list and perused some source code, but could not find answers
to the following, so
1) Is there a way to do a 'one-time' trigger with the oscilloscope? I like
having the ability to capture data and examine it.
2) I can't seem to capture more than a very small window of samples,
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