Academic Press - S Davis M Abrams J Brault - Fourier Transform Spectroscopy (2001) [275P](1).pdf

PREFACE
Fourier transform spectroscopy has evolved over several decades into an analytic
spectroscopic method with applications throughout the physical, chemical, and bi•
ological sciences. As the instruments have e automated puterized
the user has been able to focus on the experiment and not on the operation of the
instrument. However, in many applications where source conditions are not ideal
or the desired signal is weak, the ess of an experiment can depend critically on
an understanding of the instrument and the data-processing algorithms that extract
the spectrum from the interferogram. Fourier Transform Spectrometry provides the
essential background in Fourier analysis, systematically develops the fundamental
concepts governing the design and operation of Fourier transform spectrometers,
and illustrates each concept pictorially. The methods of transforming the interfero•
gram and phase correcting the resulting spectrum are presented, and are focused on
understanding the capabilities and limitations of the algorithms. Techniques •
puterized spectrum analysis are discussed with the intention of allowing individual
spectroscopists to understand the numerical processing algorithms without •
puter programmers. Methods for determining the accuracy of numerical
algorithms are discussed pared pictorially and quantitatively. Algorithms
for line finding, fitting spectra to voigt profiles, filtering, Fourier transforming, and
spectrum synthesis form a basis of spectrum analysis tools from plex
signal-processing procedures can be constructed.
This book should be of immediate use to those who use Fourier transform spec•
trometers in their research or are considering their use, especially in astronomy,
atmospheric physics and chemistry, and high-resolution laboratory spectroscopy.
We give the mathematical and physical background for understanding the operation
of an ideal interferometer, illustrate these ideas with examples of in