Signal Processing and Systems Theory

„Signal Processing and Systems Theory“ is concerned with the
study of         H-optimization for digital signal processing and
discrete-time control         systems. The first three chapters
present the basic theory and standard      methods in digital
filtering and systems from the frequency-domain               approach,
followed by a discussion of the general theory                              of
approximation in Hardy spaces. AAK theory is introduced,
first for   finite-rank operators and then more generally,
before being extended to the multi-input/multi-output
setting. This mathematically rigorous book is         self-contained
and suitable for self-study. The advanced                              mathematical
results derived here are applicable to digital                        control
systems and digital filtering.