Unformatted text preview: material t hat a s tudent taking this course is expected t o have
already mastered. I t includes topics such as complex numbers, sinusoids, sketching
signals, Cramer's rule, partial fraction expansion, matrix algebra. The next 7 chapters deal with continuous-time signals a nd systems followed by 5 chapters treating
discrete-time signals a nd systems. T he last chapter deals with state-space analysis.
T here are MATLAB examples dispersed throught the book. The book can b e readily tailored for a variety of courses of 30 to 90 lecture hours. I t c an also be used as
a t ext for a first undergraduate course in Digital signal Processing (DSP).
T he organization of the book permits a great deal of flexibility in teaching t he
continuous-time a nd discrete-time concepts. The natural sequence of chapters is
m eant for a sequential approach in which all the continuous-time analysis is covered first, followed by discrete-time analysis. I t is also possible t o integrate (interweave) continuous-time a nd discrete-time analysis by using a appropriate sequence
Credits T he photographs of Gauss (p. 3), Laplace (p. 380), Heaviside (p. 380), Fourier
(p. 188), Michelson (p. 206) have been reprinted courtesy of t he Smithsonian Institution. The photographs of Cardano (p. 3) a nd Gibbs (p. 206) have been reprinted
courtesy of the Library of Congress. Most of the MATLAB examples were prepared
by Dr. O. P. M andhana of IBM, Austin, TX.
Acknowledgments Several individuals have helped me in t he p reparation of this book. I am grateful for the helpful suggestions of the reviewers Professors. Dwight Day (Kansas S tate vii P reface University), Prof. M ark Herro (University of Notre Dame), H ua Lee (University o f
California, S anta B arbara), T ina Tracy (University of Missouri, Columbia), J .K.
T hgnait ( Auburn University), R.L. T hmmala (Michigan S tate University). l owe
Dr. O.P. M andhana a d ebt of gratitude for his helpful suggestions a nd his painstaking solutions t o most of t he MATLAB problems. Special t hanks go t o Prof. J ames
Simes for generous help with computer solution of several problems. I am much
obliged t o Ing Ming C hang for his enthusiastic a nd crucial help in solving MATLAB problems a nd using computer t o p repare t he m anuscript. Finally I would like
t o m ention t he enormous b ut invisible sacrifices of my wife R ajani in this endeavor.
B . P. Lathi MATLAB
T hroughout t his book, examples have been provided t o familiarize t he r eader
with computer tools for systems design a nd analysis using t he powerful a nd versatile
software package MATLAB. Much of t he t ime a nd cost associated with t he analysis
a nd design of systems can b e reduced by using computer software packages for
simulation. Many corporations will no longer s upport t he development systems
without prior computer simulation a nd numerical results which suggest a design
will work. T he examples a nd problems in t his b ook will assist t he r eader in learning
t he value of computer packages for systems design...
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