Microsoft Excel can be used for simple as well as complex data analysis. Add-In Analysis ToolPak brings statistical and signal processsing data analysis in Excel. For ...

The FFT can measure phase angle, but what appears to be a meaningful result might just be the arctangent of a ratio of rounding errors. Throughout this series, we reviewed the fast Fourier transform ...

This program reads an Excel file containing time series data and signal data, performs Fast Fourier Transform (FFT) on the signal data, and generates various plots to visualize the frequency ...

The inverse Fourier transform (inverse FFT or iFFT) reverses the operation of the Fourier transform and derives a time-domain representation from a frequency-domain dataset. Figure 1. The inverse ...