Can Decimation be used to improve the SNR of a signal?

Published: 14/11/2019
Can Decimation be used to improve the SNR of a signal?
Source: ELECTRONICS.STACKEXCHANGE.COM

While researching SNR improvement techniques, I came across many techniques, mostly the application of digital filters and windowing. Shortly, I read an article that said that performing decimation can be used to improve the SNR of a signal, by a factor of 3dB (half in linear terms) for every time the decimation is doubled. From my understanding of decimation, we basically throw away a certain por

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