This book is an updated and much enlarged 2018 edition of the book
Optimum Signal Processing, which was published in 2007 as a
republication of the second edition published by McGraw-Hill in 1988
(ISBN 0-07-047794-9), and also published earlier by Macmillan, Inc.,
1988 (ISBN 0-02-389380-X). All copyrights to this work reverted to
Sophocles J. Orfanidis in 1996.