SLWU087E november 2013 – june 2023
From HSDC Pro v2.20, average FFT is calculated as “Power Average” (Root Mean Square method). It is calculated by taking square root, over the average of sum of squares of FFT arrays. (Each FFT array representing a single capture)
In previous versions, average FFT was calculated by normal average method (Arithmetic average of “n” FFT data arrays).