meaning of M(QN) notation

Started by jbrower 2 weeks ago2 replieslatest reply 2 weeks ago144 views

Hi all-

Does anyone know what M(QN) notation means ? For example 15(Q16) ?

I'm familiar with QN, QN.M, but not with a leading number followed by parens. I suspect it's something to do with sign or number of sign bits ... but I thought I would ask the definitive experts here on dsprelated.

Thanks, Jeff

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Reply by Robert WolfeNovember 21, 2023

I'm not an expert, and couldn't find much when searching online.  But maybe it's just an embellished or extended way of indicating QN, i.e. 1 sign bit, N bits fractional.


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Reply by jbrowerNovember 21, 2023

Hi Robert-

Thanks, that makes sense. I couldn't find any clear examples either.