Amplitude Compression

In acoustic signal processing, it is rare that the phase of a detected sinusoid is meaningful. Therefore, we can compress the $ 2k$-dimensional amplitude vector $ {\bf b}$ into a $ k$-dimensional vector of squared magnitudes $ {\bf d}=[d_1,d_2 \ldots d_k],$ where

$\displaystyle d_i = \alpha_i^2 + \beta_i^2.$

The module function software/module_c2r.m implements this compression.



Baggenstoss 2017-05-19