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practical implementation aside: Thanks to Parseval’s theorem, looking
at relative signal strength in frequency and time domain is equivalent.
You can just use a number sink or time sink with a low pass filter to
visualize the received signal power of the carrier. If you’re feeling
like doing things completely right, you can automatically fine tune to
the carrier by using PLL carrier tracking
As for implementation: there is the max block. What you could do is:
PLL -> low pass -> complex to mag -> integrate -> stream to vector ->
max/argmax (depends on what you actually want to do)
but that will not “update” your maximum during runtime but only find
the maximum within a vector.
However, implementing an “always output the (abs)maximum float value”
block is really easy as a python block - in fact, doing that might be
a great start into developing GNU Radio blocks. Doing it somewhat
optimized might need some thought, though
PS: please make sure not to respond to previous posts when bringing up
a new topic; otherwise, your post will appear in that thread and is
more likely to be ignored.
On 20.03.2014 16:05, George S. Williams wrote:
signal but can’t figure out how to measure the peak. Any advice
would be appreciated.
mailing list [email protected]
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