https://www.ni.com/en/support/documentation/supplemental/18/specifications-explained--spurious-free-dynamic-range--sfdr-.html
Spurious-Free Dynamic Range (SFDR) Explained - NI
spurious free dynamic rangesfdrexplainedni
https://www.mathworks.com/help/signal/ref/sfdr.html
sfdr - Spurious free dynamic range - MATLAB
This MATLAB function returns the spurious free dynamic range (SFDR), r, in dB of the real sinusoidal signal, x.
spurious free dynamic rangesfdrmatlab