I am reading smith at following page/link andThe Scientist and Engineer's Guide to Digital Signal Processing by S.W. Smith. In Chapter 9: Applications of the DFT in second line ofthe 3rd paraparagraph he writes kernel"kernel (impulse response)
https://www.dspguide.com/ch9/3.htm"
What does it mean? What is meant by kernel?Is Is it same as impulse response?