On 08/24/2016 08:28 PM, Hasini Abeywickrama wrote:
Hi all,
I have flowgraph that receives a signal from a USRP and converts it to
log power FFT and then writes the result to a file, using File Sink.
I want to understand how writing to the file works.
* If the signal is received for /n /seconds and it takes /m /seconds
to write to the file, will the signal be still received and read
within those /m /seconds?
* Or the signal receiving is resumed after the previous information
is all written to the file?
Basically does signal receiving is happening concurrently with writing
to the file? Is it possible to lose some part of the signal because of
the delay in writing to the file?
I am concerned about this because I am trying to measure the power of
a signal
(in a file) that is constantly changing. Any loss of information would
have a huge impact on the system I'm developing.
Any idea/comment/suggestion would be very much appreciated.
Thank you for your time!
Regards,
Hasini
If you aren't getting overruns 'O' you aren't losing information.
There's a lot of concurrency and buffering in modern operating systems, and
Gnu Radio has a lot of internal parallelism as well.
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