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[Discuss-gnuradio] new burst detector
From: |
nexy_sm |
Subject: |
[Discuss-gnuradio] new burst detector |
Date: |
Thu, 25 Oct 2012 06:08:18 -0700 (PDT) |
Hi all,
I would like to design burst detector, which will have a bit intelligence in
order to avoid stort pulses recording. So far I was dealing with similar
stuff, but I was using microcontroller and plug and play analog frontend.
There I was making decision whether signal has enough power or not by using
RSSI value, available at frontent's pin. I had very simple averaging inside
of microcontroller in order to have noise level, and time constant of that
filter was quite big. So, i was only comparing noise level with current
signal strength.
Now I would like to make something similar. I wonder what is the usual way
to detect whether the signal is present in the receiver or not. Do you think
that i need both signal level detector and preamble "finder" or it can work
only with preamble "finder". Since I am dealing with 434MHz ISM band with
FSK modulation scheme, the preamble is simple 0 1 0 1 ...
Best
Nemanja
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