Signal processing
The
scipy.signal
module contains filter functions and B-spline interpolation algorithms.
Note
Spline interpolation uses a polynomial called a spline for interpolation. The interpolation then tries to glue splines together to fit the data. B-spline is a type of spline.
A SciPy signal is defined as an array of numbers. An example of a filter is the
detrend
function. This function takes a signal and does a linear fit on it. This trend is then subtracted from the original input data.