This textbook is a concise yet precise supplement to traditional books on Signals and Systems, focusing exclusively on the continuous-time case. Students can use this guide to review material, reinforce their understanding, and see how all the parts connect together in a uniform treatment focused on mathematical clarity. Readers learn the "what", "why" and "how" about the ubiquitous Fourier and Laplace transforms encountered in the study of linear time-invariant systems in engineering: what are these transforms, why do we need them, and how do we use them? Readers will come away with an understanding of the gradual progression from time-domain analysis to frequency-domain and s-domain techniques for continuous-time linear time-invariant systems. This book reflects the author's experience in teaching this material for over 25 years in sophomore- and junior-level required engineering courses and is ideal for undergraduate classes in electrical engineering.
這本教科書是對於傳統信號與系統書籍的簡明而精確的補充，專注於連續時間的情況。學生可以利用這本指南來複習材料，加強他們的理解，並看到所有部分如何在一個以數學清晰度為重點的統一處理中相互連結。讀者將學習到在工程中研究線性時不變系統時所遇到的無處不在的傅立葉變換（Fourier transform）和拉普拉斯變換（Laplace transform）的「什麼」、「為什麼」和「如何」：這些變換是什麼，我們為什麼需要它們，以及我們如何使用它們？讀者將能夠理解從時域分析逐漸過渡到頻域和s域技術的過程，這些技術適用於連續時間的線性時不變系統。這本書反映了作者在教授這些材料方面超過25年的經驗，適合大學電機工程的必修課程。
Stéphane Lafortune was born in Montréal, Québec, Canada. He received the B.Eng degree from École Polytechnique de Montréal in 1980, the M.Eng degree from McGill University in 1982, and the Ph.D degree from the University of California at Berkeley in 1986, all in electrical engineering. Since September 1986, he has been with the University of Michigan, Ann Arbor, where he is a Professor of Electrical Engineering and Computer Science. In March 2018, he was appointed as the N. Harris McClamroch Collegiate Professor of Electrical Engineering and Computer Science. Lafortune is a Fellow of the IEEE (1999) and of the IFAC (2017). He received the Presidential Young Investigator Award from the U.S. National Science Foundation in 1990 and the Axelby Outstanding Paper Award from the Control Systems Society of the IEEE in 1994 (for a paper co-authored with S.-L. Chung and F. Lin) and in 2001 (for a paper co-authored with G. Barrett). Lafortune's research interests are in discrete event systems and include multiple problem domains: modeling, diagnosis, control, optimization, and applications to computer and software systems. He co-authored, with C. Cassandras, the textbook "Introduction to Discrete Event Systems" (Third Edition, Springer, 2021).
斯特凡·拉福廷（Stéphane Lafortune）出生於加拿大魁北克省的蒙特利爾。他於1980年獲得蒙特利爾理工學院（École Polytechnique de Montréal）的工程學學士學位，1982年獲得麥吉爾大學（McGill University）的工程學碩士學位，1986年獲得加州大學伯克利分校（University of California at Berkeley）的電機工程博士學位。自1986年9月以來，他一直在密西根大學安娜堡校區任教，擔任電機工程與計算機科學教授。2018年3月，他被任命為N. Harris McClamroch電機工程與計算機科學榮譽教授。拉福廷是IEEE（1999年）和IFAC（2017年）的會士。他於1990年獲得美國國家科學基金會的總統青年研究者獎，並於1994年（與S.-L. Chung和F. Lin共同撰寫的論文）和2001年（與G. Barrett共同撰寫的論文）獲得IEEE控制系統學會的Axelby傑出論文獎。拉福廷的研究興趣集中在離散事件系統，涵蓋多個問題領域：建模、診斷、控制、優化以及在計算機和軟體系統中的應用。他與C. Cassandras共同撰寫了教科書《離散事件系統導論》（第三版，Springer，2021年）。
