On 01/10/2012 02:37 AM, Phone Naing MYINT wrote:
Hi,
Is there simple way to detect energy level(with threshold) without
doing FFT? If available in gnuradio, may I know the module name? Thank
you.
PN
If you're referring to signal *power*, then yes. complex-to-mag-squared
produces a value that is proportional to the instantaneous power level
embodied in the complex sample given to it. Typically, you low-pass
filter that, and then decimate the result, which gives you a channel
power estimate, updated at whatever rate is comfortable.
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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