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Guest · Posted: Wed Dec 21, 2005 5:14 pm Post subject: Simulation of a DSSS SNR

Hello,

I used a complete DSSS transceiver in simulation with a digital matched
filter for decorrelate the PN-code. I have a process gain of 10,4 dB
with a barker sequence of lenght 11.

I would like to compute the SNR at the output of the matched filter.

How to proceed ?

I compute the output of the matched filter with and without noise, so I
have the Signal power and the noise power (Signal_with_Noise -
Signal_without_noise) = Noise

I had compute the SNR at the input of the matched filter I've got for
example 0 dB and I don't find the SNR of 10 dB at the output.

Or I must compute the SNR at the ouptut of the differential demodulator
?

Thanks for ideas.

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