Andrews T. Excursions in Harmonic Analysis, Vol 1-2. 2014

Textbook in PDF format

The Norbert Wiener Center for Harmonic Analysis and Applications provides a state-of-the-art research venue for the broad emerging area of mathematical engineering in the context of harmonic analysis.
This two-volume set consists of contributions from speakers at the February Fourier Talks (FFT) from 2006-2011. The FFT are organized by the Norbert Wiener Center in the Department of Mathematics at the University of Maryland, College Park. These volumes span a large spectrum of harmonic analysis and its applications. They are divided into the following parts:
Volume I.
Sampling Theory.
Remote Sensing.
Mathematics of Data Processing.
Applications of Data Processing.
Volume II.
Measure Theory.
Filtering.
Operator Theory.
Biomathematics