Window Functions and Their Applications in Signal Processing

 

Foreword

 

 

 

In the past decades, rapid advances in digital IC (integrated circuit) technology have caused a “digital revolution” in the field of signal processing. These days, almost any real-world signal is represented and processed digitally, from physiological vital signs via camera pictures, audio signals, video signals, and radar signals to the massive four-dimensional datasets produced by modern medical imaging equipment. The rapid growth of the fixed and mobile Internet, combined with the insatiable appetite of mankind for information, will further add fuel to this revolution.

When real-world signals are converted into a digital form, they are commonly split into discrete blocks for further processing. To avoid the edge effects ...