References

As almost every engineering student takes some version of a linear signal and systems course, there are a multitude of textbooks on linear systems theory. They can be roughly classified by focus: hands-on introductions which tend to focus on DSP, theory-heavy approaches which tend to focus on CT signals and systems, as well as a host of books targeting engineering sophomores and juniors in specific disciplines: EE, CPE, Mechanical, etc. The latter largely differ only in the example systems used to illustrate the abstract mathematical concepts.

In addition to the official textbook by Lathi and Green, these notes are based heavily on the following books. These are no longer in print, but as this material has changed little for several decades, older books are fine (and in many cases better). You can often find used copies at a reasonable price.

• Cooper, G.R. and McGillem, C.D., Methods of Signal and System Analysis, Holt, Rinehart and Winston, 1967. This is probably my favorite book in terms of clarity.
• Ziemer, R.E.; Tranter, W.H.; and Fannin, D.R., Signals and Systems: Continuous and Discrete, 3rd Edition, Macmillan Publishing, 1993. The book I learned from back in the day. Fun fact, Bill Tranter was a long-time VT ECE faculty member.
• Oppenheim, A.; Wilsky, A.; and Nawab, S., Signals and Systems, 2nd Edition, Prentice-hall 1996. This is the book we used to layout the course initially and is still my preferred text becuase of its ordering.

There are also a few open or freely available textbooks. The following had an influence on these notes and the course structure in general.

• Edward A. Lee and Pravin Varaiya, Structure and Interpretation of Signals and Systems, Second Edition, LeeVaraiya.org, ISBN 978-0-578-07719-2, 2011. link