Welcome back Eric!
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hello, i've gone through a few tutorials and have recently been trying to
install and run the bbn 802.11b code in particular to test out the
transmitter and receiver but have run into a myriad of troubles including
having to change references, include standard libraries in code, and now the
code ca
Hello, Sebastiaan,
Thank you for your advice. Actually I am aware of basic characteristics of
half band filter. It is very well explained in Rick Ryon's "Understanding
Digital Signal Processing (2nd Ed.)" (
http://www.amazon.com/Understanding-Digital-Signal-Processing-2nd/dp/0131089897/ref=sr_1_1?
On Wed, Nov 11, 2009 at 04:34:16AM +0800, fangming he wrote:
>
> Hi, All,
> Do you notice that the return of this function is noutput_items
> rather than output_items? In this function , the noutput_items is
> the number of the input_items and output_items.
This is incorrect. The block is deriv
We're checking timestamps on ethernet frames and everything seems fine
all the way up to 25 MHz over many hours of continuous data streaming.
At lower rates we've done several days of streaming without dropped
frames or conflicting timestamps.
juha
On Tue, Nov 10, 2009 at 20:21, Tim Pearce wrote
Hi, All,
Do you notice that the return of this function is noutput_items rather than
output_items? In this function , the noutput_items is the number of the
input_items and output_items. In my opinion, the output of this function should
be output_items. After all, what we concern is the calcula
Hi Doug,
Yes for each sample its calculating the new sample value by adding the
decimation rate.
I'll try this without the addition as it might reduce the processor load and
can easily be post processed for the application I'm working on.
Cheers,
Tim
On Mon, Nov 9, 2009 at 10:06 PM, Doug Geige
Hi list,
I have looked at the digital rx example, and there is at least one thing
in particular that have caught my attention.
In the receive path, the channel- filters output is connected to two
blocks, first a carrier- sense (gr_probe_avg_mag_sqrd_c) and second a
"packet receiver".
In the pack
Hi
I think Brian is just referring to the fact that you can see that the
HBFs are implemented as symmetric FIR filters (the coefficients). A
HBF is just a special filter that is designed so that the cutoff
frequency will always be at fs/2, so if you filter with it and
decimate by 2 afterwards (wh
