On 7/6/11 8:20 PM, Colby Boyer wrote:
One method would be to use a single pole IIR filter to
get an average of the noise floor energy, and compare that with
the average symbol energy.
On Wed, Jul 6, 2011 at 6:49 AM, George
Sklivanitis <address@hidden>
wrote:
Hello all,
Lately, I am experimenting with a point-to-point SDR link
where my transmitter uses On-Off Keying modulation while the
receiver follows techniques for efficient signal processing
and detection (non-coherent, coherent). My major problem is
how can I measure the input SNR as a ratio of the power of the
received signal to the power of noise, given also that we
ignore the quantity of NF (Noise Figure).
Thank you in advance for your concern,
GS
--
Sklivanitis Georgios
M.Sc. Student
Telecommunications Division,
Department of Electronics and Computer Engineering
Technical University of Crete,
Kounoupidiana Campus, Office 145.A10
Chania, Crete, 73100, Greece
Tel. : 28210 59257
www.telecom.tuc.gr/~gsklivanitis
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Hello again,
Could it be sufficient enough to say that we measure the noise's
variance as the variance of the data captured when nobody transmits
in the desired frequency and then the ratio of the received signal
energy to the noise's energy plus 1 will give us the estimated
Signal-to-Noise ratio?
Thanks,
GS
--
Sklivanitis Georgios
M.Sc. Student
Telecommunications Division,
Department of Electronics and Computer Engineering
Technical University of Crete,
Kounoupidiana Campus, Office 145.A10
Chania, Crete, 73100, Greece
Tel. : 28210 59257
www.telecom.tuc.gr/~gsklivanitis
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