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Adding SNR from multiple detectors 
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#1
Jun1614, 09:40 AM

P: 23

I am looking at the same object with two detectors. The SNR on each is 2, which is a low probability of detect given a single sensor. However, if I fuse the two what would be the SNR then? Would it be additive (SNR=4) or rss (SNR=2×sqrt(2)) or something more complicated?



#2
Jun1714, 12:24 AM

P: 1,084

Correlated signals add, uncorrelated signals are sqrt(sum of squares).
If the noise is uncorrelated between the detectors, and the signal is correlated, you will improve the SNR 


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