Why Oversample when Undersampling can do the Job?(ti.com)
ti.com
Why Oversample when Undersampling can do the Job?
https://www.ti.com/lit/an/slaa594a/slaa594a.pdf?ts=1680416008094&ref_url=https%253A%252F%252Fwww.google.com%252F
1 comments
Ah, 2013. I haven't read these in a while. From what I understand this works because you have some lateral information so you don't have ambiguity and this is why you can recover the original frequency - as you also have to plan filters accordingly.