Resampling work-in-progress

Submitted by alexia.gossa.root on 2021/10/12 - 22:39

I'm actually working on the resampling process again.

The current resampling uses too memory space and generate too much THD.

Source vs Resampled

Red : Source data with F1 is 49.6Hz
Green : Resampled data with F2 is 50.0Hz

Comments

alexia.gossa.root

2021/11/05 - 23:56

A solution has been found with a very low THD.

I've lost 1 month to improve the resampling process... without a better measurable result !
After a very long search, the problem was found. It's located in the PLL.
It's time to implement the new processing and test !

Source vs new resampled

 

Red : Source data with F1 is 49.6Hz
Green : Resampled data with F2 is 50.0Hz