Continueing with http://www.ruby-forum.com/topic/1983866,
I have planned to append a preamble before an actual signal and turn RX on
earlier than TX.
Then RX will receive a signal like below:
|---RX turn on--|---TX turn on-
(---trash signal---)(---preamble---)(---
On 23/06/2011 3:03 PM, Colby Boyer wrote:
Or operate your receiver at absolute zero so there is no thermal noise? :D
Infinite SNR. Must have :-)
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
https://lists.gnu.org/mailman/listinfo/discu
On Fri, 2011-06-24 at 04:00 +0900, Songsong Gee wrote:
> Ok. First of all, I'd like to run a code like below (pseudo):
> for i = 1 to 200 // preamble duration
> amp = 32767
> end for
> amp = 100
Like I said earlier, this is unlikely to be a good approach to
synchronizing with a preamble.
>
> N
Or operate your receiver at absolute zero so there is no thermal noise? :D
On a more serious note, how I do preamble detection is the following:
* Figure out the sample sequence of your TX'ed preamble sequence, use this
as a match filter.
* Tag the magnitude of the match filter and run through th
Ok. First of all, I'd like to run a code like below (pseudo):
for i = 1 to 200 // preamble duration
amp = 32767
end for
amp = 100
Next, how many baseband samples are generated by DPSK or Frequency mod block
for a single symbol input
Composed with Android (Galaxys)
2011. 6. 24. 오전 3:31에 "Nick Fo
On 23/06/2011 2:31 PM, Nick Foster wrote:
Why would you set the amplitude of the preamble differently than the
actual data?
--n
In the hopelessly-naive assumption that the preamble can be made to be
"perfect" through brute-force transmit power.
Like you observed earlier, correlation is the c
On Fri, 2011-06-24 at 01:17 +0900, Songsong Gee wrote:
> Continueing with http://www.ruby-forum.com/topic/1983866,
>
>
> I have planned to append a preamble before an actual signal and turn
> RX on earlier than TX.
>
>
> Then RX will receive a signal like below:
> |---RX turn on--|-
I'm a bit confused. What exactly are you trying to do?
On Thu, Jun 23, 2011 at 9:17 AM, Songsong Gee wrote:
> Continueing with http://www.ruby-forum.com/topic/1983866,
>
> I have planned to append a preamble before an actual signal and turn RX on
> earlier than TX.
>
> Then RX will receive a sign