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Adding SNR from multiple detectors

by sparkle_pony
Tags: adding, detectors, multiple
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sparkle_pony
#1
Jun16-14, 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?
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meBigGuy
#2
Jun17-14, 12:24 AM
P: 1,081
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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