Book Image

NumPy: Beginner's Guide

By : Ivan Idris
Book Image

NumPy: Beginner's Guide

By: Ivan Idris

Overview of this book

Table of Contents (21 chapters)
NumPy Beginner's Guide Third Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
NumPy Functions' References
Index

Kaiser window


The Kaiser window is formed by the Bessel function.

Note

Bessel functions are solutions of the Bessel differential equations (see http://en.wikipedia.org/wiki/Bessel_function).

The formula is as follows:

Here I0 is the zero order Bessel function. The NumPy kaiser() function returns the Kaiser window. The first parameter is the number of points in the output window. If this number is 0 or less than 0, the function returns an empty array. The second parameter is the beta.