具體描述
基本信息
書名:信號與係統基礎(高等學校電子信息類專業係列教材)
定價：36.0元
售價：24.5元,便宜11.5元,摺扣68
作者:李剛,常麗萍,李勝著
齣版社：清華大學齣版社
齣版日期：2015-01-01
ISBN：9787302385981
字數：405000
頁碼：
版次：1
裝幀：平裝
開本：16開
商品重量：0.4kg
編輯推薦
“信號與係統”是包括電氣工程、電子信息工程、通信工程和自動化等本科專業重要的專業基礎課程之一。本教材對應於全國雙語示範課程。作者結閤多年在國內外的教學經驗及心得，針對當前雙語教學及全英文教學現狀，著眼於學生自學能力的培養和分析問題能力的提高，編寫瞭本書。
本書側重培養學生分析問題的能力及注重研究問題方法的學習。與現有同類中英文教材相比：
（1）文字精煉，內容安排上采用模擬-離散雙域交替的方式。
（2）在處理常係數綫性微分（差分）方程及由其描述的綫性時不變係統及與變換的關係上有獨到之處。
（3）知識體係完整，係統及邏輯性強，同時也適用於自學。
本教材教輔資源完整，可到清華大學齣版社網站本書頁麵下載。內容提要
Fundamentals of Signals and Systems deals with the concepts of signals and systems, which are the corner-stone of a wide variety of areas ranging from home-oriented consumer electronics and multimedia entertainment products to sophisticated munications, aeronautics and astronautics, and control. A course on signals and systems is fundamental and pulsory for an engineering under-graduate curriculum in any well-established tertiary (education) institutions. This book provides readers with the basic principles and methods underlying the analysis of signals and systems in the context of both continuous- and discrete-time, including Fourier analysis based representations for signals and both time- and transform-domain approaches as well as state-space approach to (linear time-invariant) systems. Great emphasis is placed on being concise, easy for self-study, and rigorous. Compared with most of the existing textbooks on the same topics, more effort is made in this book to provide a clear picture of the relationship between linear constant differential/difference equations and linear time-invariant systems. Another significant feature of this book is a separated chapter (Chapter 8) that contains a set of prehensive exercises, each of which usually involves mathematical deviations and more sophisticated application of the concepts and approaches provided in the entire text book rather than an individual chapter. This book is primarily designed for undergraduate students majoring electrical & electronics and information engineering, the concepts and techniques introduced in the book, however, are of fundamental importance in all other engineering disciplines. Readers of this book are assumed to have a basic background in engineering mathematics, including calculus, plex functions, and linear differential equations. Some knowledge on circuit theory, though not a prerequisite, would be helpful for the study.
目錄
作者介紹
李剛 教授，博士生導師，浙江省“錢江學者”特聘教授。1982年1月畢業於北京工業學院(現北京理工大學), 1990年11月獲比利時新魯汶大學工學博士。 1992年4月至2007年2月在新加坡南洋理工大學任教。 長期從事數字信號處理、係統與控製理論等方麵的教學與研究。 主要研究方嚮為信號變換與壓縮、數字係統結構與參數化理論及優化方法。
常麗萍 博士，副教授，2008年6月畢業於中國科學院上海光學精密機械研究所，目前在浙江工業大學信息工程學院從事教學和科研工作。研究方嚮為信號稀疏錶示模型、壓縮感知與信號檢測等。
李勝 博士，講師，2010年12月取得英國約剋大學博士學位，曾獲約剋大學授予的K. M. Stott科研奬，於2011年10月在德國伊爾梅瑙工業大學通信研究實驗室結束博士後工作。目前在浙江工業大學任教。主要研究方嚮包括自適應算法、無綫通信係統、通信接收機設計、乾擾消除等。
文摘
序言
Preface
Theconcepts of signals and systems are the corner-stone of a wide variety ofareas, ranging from home-oriented consumer electronics and multimediaentertainment products to sophisticated munications, aeronautics andastronautics, and control. The ideas and approaches associated with theseconcepts have great e.ects on our life in one way or another. Although thesignals and systems which arise across those .elds are naturally di.erent intheir physical make-up and application, the principles and tools for analyzingsignals and systems are the same and hence applicable to all of them.Therefore, an introductory course on signals and systems is fundamental andpulsory for an engineering under-graduate curriculum in any well-establishedtertiary (education) institutions. Such a course is monly designed in one ofthe two forms below:
. aone-semester subject that intends to provide students with a rich set ofconcepts and tools for analyzing deterministic signals and an important classof systems known as linear time-invariant systems;
. atwo-semester subject that expands on the one-semester course by adding moredetailed treatment of signal processing and systems for speci.ed applicationssuch as munications, multimedia signal processing and control engineering.
Thisbook takes the .rst form and assumes that the students have a background incalculus and introductory physics.
Whyanother “Signals and Systems”
Giventhat there are many well-written textbooks on signals and systems available,our readers would be screaming when seeing this textbook: Why another “Signalsand Systems”
Thethought of writing such a textbook was stimulated in 2007 when the .rst authorconducted a 2nd year course on signals and systems in Zhejiang University ofTechnology (ZJUT) in Hangzhou, which he just joined from Nanyang TechnologicalUniversity (NTU), Republic of Singapore. The course was designed as ¡°shuang yuke¡± spelled in Chinese, meaning that the teaching materials such as thetextbooks and slides are all in English and as to the class language, thelecturers can choose either Chinese, English or a mixture of the two¡ªa typicalChinese style! The textbooks adopted were those popularly used in the world butwere found very di.cult to most of our students as their English is not goodenough to deal with those textbooks of one thousand pages or so in length.1This motivates him to write a new “Signals and Systems”
Here,we have those big masters of Signals and Systems to “blame” why not writingtheir text-book in Chinese!
with aprimary objective of providing a condensed version of “Signals and Systems”in English, while keeping the important technical materials as much aspossible.
Mostof us agree that for a university study it is more important to teach studentshow to learn and analyze than what to be learned and analyzed. The .rst authorstill remembers what was said by Professor Y. Liu who taught him calculus in1978 in Beijing Institute of Technology (BIT) (now, known as Bei Li Gong) thata good textbook, say of ten chapters, should be written in such a way thatafter the .rst four chapters taught by the lecturer, the rest can be studied bystudents themselves easily. What Prof. Liu really meant is that a textbookshould be written to facilitate and reinforce self-study. This is anotherobjective that this textbook is intended to achieve. Given the mathematicalnature of this subject, rigidity should be sustained as much as possible, whichis something very important to engineering students to learn. This is the thirdobjective of this textbook.
Howthe book is structured
One ofthe reasons for the existing textbooks of signals and systems to have easilyover eight hundred pages is due to the continuous-and discrete-time forms ofsignals and systems. The success of a signals and systems that achieves ourprimary object lies in how to provide a balanced and integrated treatment ofthe two forms in a pedagogical way that can help students see the fundamental similaritiesand di.erences between the two without too much repeating. With all of these inmind, this book is organized as follow.
. Chapter 1 is aimed to provide an overview ofsignals and systems. Compared with the one in most of the signals and systems,it is condensed with an emphasis on the periodical signals and lineartime-invariant (LTI) systems.
. Chapter 2 deals with the time-domain approachto the LTI systems. Since the key to the development of this chapter is toexploit the properties of linearity and time-invariance as well as signaldepositions, the concepts of unit impulse re-sponse and convolution aredeveloped in details for the discrete-time case, while the continuous-timecounterparts are directly given. One of the remarkable points emphasized inthis chapter is the equivalence between the LTI systems and con-volutions,which relates the physical interpretation and mathematical expression. Anotherimportant technical point in this chapter is the establishment of a con-clusionwhich states that any plete solution of a linear constant coe.cientdi.erential/di.erence equation (LCCDE) can be characterized by the sum of theoutput of an LTI system excited by the force signal and a homogeneous solutionof the LCCDE. This conclusion yields a very clear picture of the relationshipbe-tween an LCCDE and the systems that it can characterize. With the help ofthe transformsto be discussed in Chapter 6, it also provides an easy way to .nd a particularsolution and hence the set of plete solutions of the LCCDE.
. Chapter3 is the biggest chapter, dealing with four signal representations, namely,Fourier series (FS), discrete-time FS (DTFS), Fourier transform (FT), anddiscrete-time FT (DTFT). The most important concept in this chapter is signalde-position. Along this line, the four signal transforms can be uni.ed as alinear bination of basis signals. This uni.cation allows us to condense thetext sig-ni.cantly as one can just focus on the development and the properties ofFT and DTFT. Great e.ort has been made to explain why a signal should betransformed, which is one of the di.cult points for most of the 2nd yearstudents to understand given that they usually do not have a relevantbackground.
. Equippedwith Chapters 1~C3, a top student should be able to study on ones own the restof this book, including Chapter 4 that studies the class of LTI systems usingFourier analysis techniques developed in Chapter 3. The key points of thechapter are the frequency response and the equivalence between convolution intime-domain and multiplication in frequency-domain and the development of theconcepts in both continuous-and discrete-time domains are rotated to avoidun-necessary repetition.
. Chapter5 mainly focuses on discrete processing of continuous-time signals. Thedevelopment .ows mainly from the techniques derived in Chapters 2¨C4. Startingfrom sampling a signal that is continuous in time-domain, the relationshipbetween the spectrum of the continuous-time signal and that of thediscrete-time signal obtained is established, based on which the famoussampling theorem and hence the ideal reconstruction can be derived. Unlike mostof the existing textbooks, this relation is derived directly using a simplemathematical procedure rather than the one that is obtained with the help ofimpulse train. Note that the DTFT of a discrete-time signal is a continuousfunction in frequency. Sampling (in frequency) of such a function leads to anew transform-discrete Fourier transform (DFT) that is popularly used in manyapplications of digital signal processing, including linear .ltering,correlation analysis, and spectral analysis. More profound discussions on theDFT, however, are beyond the scope of this book as the relevant topics areparts of the core contents for the subjects on digital signal processing.
. Chapter6 deals with transform-domain approaches to signals and systems. The Laplacetransform and z-transform are studied in a parallel way, while the appli-cationsof the two transforms to LTI systems and .nding the plete solution of anLCCDE are given in a uni.ed manner, which once again allows us to condense thetextbook. As two of the new features of this book, the problems of .ndinginverse systems of a given LTI system & de-convolutions and deposingsystem responsesare carefully treated. The former is rarely found in most of the existingtextbooks, while the latter is intended organized to help students have an easyunderstanding of the unilateral transforms.
. The advantage of the uni.ed/integratedtreatment of the continuous-and discrete-time forms is particularlydemonstrated in Chapter 7 in study of block-diagram representations andstructures of the LTI systems in transform-domain. As a special class of systemstructures, the state-space realizations of LTI systems are introduced.
. Following the traditional pedagogy, thetutorial questions given in each chapter are mainly designed for helpingstudents to enhance the understanding of the concepts in an individual chapteronly. This, however, would make most of the students problem-result-orientedand hence loses the real purpose of learning. To overe this, Chapter 8 isdevoted to providing a set of prehensive exercises, each of which usuallyinvolves mathematical deviations and a more sophisticated applica-tion of theconcepts and approaches provided in the entire text book rather than anindividual chapter.
. Appendices are used to make the book conciseand self-contained, and also sustain rigidity of the development.
Acknowledgements
It isour great pleasure to thank a number of people who helped us in writing thisbook with insightful suggestions and constructive feedback and those who didnothing directly to this book but we just feel good in doing so.
GangLi is grateful to his former NTU colleagues, particularly, G.A. Bi, C.R. Wan,
Z.P.Lin, Y.C. Lim, L.H. Xie, and W.J. Cai for insightful suggestions, constructivedis-cussions, and more importantly, the friendship. M.Y. Fu of the Universityof Newcastle (Australia), S. Chen of the University of Southampton (UK), J. Wuof Zhejiang Univer-sity, and Y.Q. Shi of the New Jersey Institute of Technology(USA) have shown their continuous support to Gang Li¡¯s work in ZJUT, which isvery much appreciated. He would like to take this opportunity to thank the mostimportant person to his academic career¡ªMichel Gevers of the Universit¡äeCatholique de Louvain (UCL) (Belgium), who was his Ph.D supervisor and taughthim so much, particularly on how to write. This book es true partially owingto the adventure they had together in writing their co-authored book¡°Parametrizations in Control, Estimation and Filtering Problems: AccuracyAspects¡± published by Springer-Verlag (London limited, 1993). Un Grand Mercy,Mig !
LipingChang is grateful to her Ph.D supervisor, academician Z.Q. Lin, SIOM of ChineseAcademy of Science, Shanghai, who taught her how to explore and solve scienti.cproblems during her graduate period.
ShengLi wants to say ¡®thank you for bring me to this field¡¯ to his Ph.Dsupervisor, Rodrigo C. de Lamare (Reader), University of York, U.K.. Inaddition, he is grateful to his ¡®boss¡¯ during his post-doctorial work, MartinHaardt (Professor), TU-Ilmenau, Germany. Both of these nice guys taught himmany things and helped him to improve himself.
All ofus would like to express our gratitude to many colleagues in the College ofInformation Engineering of ZJUT. Particularly, X.X. He, Y.L. Qin and S.Q. Guoare acknowledged for their full supports in various ways. It is really ourpleasure to work with them and to have achieved something meaningful together.The contribu-tion of other members in the teaching team for the subject¡°Signals and Systems¡± is acknowledged. It was due to a great collective e.ortsuch that this subject was horned as a National Model Course in English by theChinese Ministry of Education and a Provincial Course of Excellency by theEducation Board of Zhejiang province. Par-ticularly, Tao Wu¡¯s contribution andthe support from the Academic Affairs Of.ce of ZJUT as well as the two projectsare very much appreciated. It is also our pleasure to acknowledge the authorsof many existing textbooks on signals and systems pub-lished in English andChinese since their works have influenced our book in one way or another.
Wethank many students who made contributions to this book with suggestions andquestions that helped us over years to re.ne and rethink the organization andpresentation of the materials in the book. Particularly, we would like to thankChaogeng Huang, who has just obtained his Ph.D under the guidance of the 1stauthor, and Huang Bai for the excellent job done in terms of research andadministration, and two very talent undergraduate students (Year 2007) Yue Wangand Dehui Yang who helped us with simulations, .gures and tutorial problems.Special thanks go to our teaching assistants Zhihui Zhu, Tao Hong, Qiuwei Li,Shuang Li, and Liang Zhu for their help in preparing tutorial solutions andsome of the puter experiments. We are grateful to our students for theiractive participation and intensive interaction with us, which makes this bookeven more student-oriented.
Wewould like to take this opportunity to thank Professor Xianyi Gong, a Fellow ofthe Chinese Academy of Engineering, of Zhejiang university for sharing with ushis insightful views on signal processing (SP) as well as many other issues. Itis our pleasure to say that his understanding and conception of SP as well asthe enthusiasm to education have great influence on us!
Lastly,we would like to thank the support from our families, which is the drivingforce for us to write this book. It may be felt unusual by those not close toGang Li that the .rst one among his family members to mention is hisbrother-in-law Aiguo Li who has done everything possible for him and hisfamily. Liping Chang wishes to thank her family members, particularly herhusband Jia Li and their four-month old son for their deep love. Sheng Li hasthe pleasure to say ¡°I love you much more than myself ¡± to his darling wifeXiaolei Zhang and his parents.
GangLi (ieligang@zjut.edu.)
Liping Chang (clping@zjut.edu.)
Sheng Li (shengli@zjut.edu.)
July 01, 2014
at Xiao He Shan, Hangzhou
用戶評價
說實話，初接觸這門課的時候，我感覺內容龐大得有點讓人望而生畏，直到我接觸到這本教材，纔真正體會到什麼叫“化繁為簡，深入淺齣”。 它的排版設計也值得稱贊，圖文並茂，很多復雜的係統框圖和波形圖都畫得非常清晰直觀，這對於我們這種視覺學習者來說太重要瞭。我特彆喜歡它在講解捲積積分那一章節的處理方式。很多教材對捲積的解釋都是一筆帶過，導緻我們隻能死記硬背公式，但這本書卻用瞭一個非常形象的“滑動疊加”的物理過程來解釋，甚至還配上瞭動畫效果的示意圖（雖然是靜態的，但描述得讓人浮想聯翩），讓我對這個核心概念有瞭非常直觀的理解。此外，書中對LTI（綫性時不變）係統的分析，從時域到頻域的變換路徑設計得極其平滑，每一步都有明確的數學依據和物理意義的支撐，讓人感覺每一步推導都是水到渠成的。這本書的語言風格是那種非常嚴謹的學術範，但又帶著一股溫和的引導性，不像有些教材那樣冷冰冰的，讀起來讓人感覺像是在聽一位經驗豐富、耐心細緻的教授在為你講解，非常舒服。
評分坦率地說，市麵上的很多教科書，要不是過於偏嚮數學推導而犧牲瞭直觀理解，要不就是過於注重工程應用而忽略瞭背後的理論根基，但這本書在兩者之間找到瞭一個近乎完美的平衡點。 舉例來說，在講解Z變換時，它不僅僅停留在代數運算層麵，而是巧妙地引入瞭收斂域（ROC）的概念，並且清晰地解釋瞭ROC是如何決定一個係統因果性、穩定性的關鍵因素。這種將數學工具與係統特性緊密結閤的教學方法，徹底改變瞭我對“係統分析”的看法——它不再是枯燥的代數遊戲，而是對物理世界運行規律的精確描述。再者，書中對各種濾波器的介紹，如巴特沃斯、切比雪夫等，雖然篇幅適中，但對它們的設計哲學和性能摺衷（如通帶紋波與過渡帶陡峭度的權衡）的剖析極為精闢。這讓我明白，設計一個濾波器不是隨便畫個麯綫就行，而是一個充滿智慧的取捨過程。這本書的深度足以支撐本科生未來進入研究生階段的學習，其內容的廣度也能覆蓋電子信息類專業絕大多數方嚮的基礎要求。
評分我必須承認，在學習過程中，我曾被一些更花哨、更注重前沿技術的資料所吸引，但最終發現，萬變不離其宗，所有的“新奇”技術都建立在堅實的“基礎”之上，而這本教材就是那個最堅實的基石。 它對傅裏葉變換和拉普拉斯變換的區分與聯係，處理得極其到位。很多時候，我們容易將兩者混淆，但這本書通過對比它們各自適用的信號範圍和變換的物理含義，清晰地劃清瞭界限，並強調瞭它們在係統分析中的互補作用。我尤其欣賞它對采樣定理的討論。不隻是給齣那個$f_s > 2f_{max}$的公式，它還深入分析瞭欠采樣導緻的混疊現象的後果，甚至用瞭一個很小的篇幅介紹瞭如何通過閤適的插值濾波器來重建信號，這種前瞻性的視角，讓初學者也能感受到信號處理的“工程之美”。這本書的邏輯架構非常嚴謹，它不會讓你在學完A後立刻跳到Z，而是確保你完全掌握瞭B和C，纔會帶你去看更復雜的D。對於自學者來說，這種“步步為營”的教學法，極大地降低瞭學習麯綫的陡峭程度，讓人有持續探索下去的動力。
評分我曾嚮一位在工業界工作多年的前輩請教關於係統建模的最佳入門教材，他毫不猶豫地推薦瞭這本，現在我完全理解瞭他的選擇。 這本書最打動我的地方在於它的“工具箱”思維。它沒有將各種分析工具（如捲積、傅裏葉、Z變換）視為孤立的知識點，而是像提供一套精密工具箱一樣，告訴你什麼時候該用哪一把扳手。例如，在處理周期信號時，傅裏葉級數是首選；當需要分析非周期信號的頻譜特性時，傅裏葉變換登場；而一旦涉及到離散係統的因果性和穩定性判斷，Z變換就成瞭最有力的武器。這種基於應用場景的知識組織方式，極大地增強瞭知識的實用性和可遷移性。此外，書中對係統框圖的分析，尤其是對反饋係統和補償器的初步介紹，雖然沒有深入到控製理論的細節，但已經為後續學習搭建好瞭清晰的信號流嚮圖。這本書培養的不僅是知識的掌握，更是一種結構化的問題解決能力，讓我有信心去麵對更復雜的現實工程問題，而不僅僅是應付考試。
評分這套教材的理論深度和應用廣度簡直是為我們這些初入電子信息領域的學生量身定做的，尤其是對那些想打下紮實基礎的同學來說，簡直是不可多得的寶藏。 我記得第一次翻開這本書的時候，就被它清晰的脈絡和循序漸進的講解方式所吸引。它不像有些參考書那樣上來就堆砌公式，而是通過大量的實例和生活化的場景來解釋那些抽象的信號處理概念。比如，講解傅裏葉級數的時候，它不是簡單地告訴你那個積分公式怎麼用，而是會用聲波、光波的周期性來類比，讓你瞬間理解為什麼需要將一個復雜的信號分解成一係列簡單的正弦波。更讓我印象深刻的是，它在介紹連續時間係統和離散時間係統的轉換時，處理得非常巧妙。作者似乎深諳我們這些初學者的思維定式，總能在關鍵的轉摺點給齣恰到好處的解釋，避免瞭陷入“黑洞”。這本書的習題設計也很有水平，從基礎的計算題到需要綜閤運用多個知識點的分析題，層次分明，保證瞭我們不僅僅是“看懂瞭”，而是真正能“做齣來”。對於想深入研究通信、控製或者圖像處理方嚮的同學來說，這本書絕對是打地基的首選，能讓你在後續的學習中少走很多彎路，建立起對整個電子信息領域的宏觀認知框架。
相關圖書
本站所有内容均为互联网搜索引擎提供的公开搜索信息，本站不存储任何数据与内容，任何内容与数据均与本站无关，如有需要请联系相关搜索引擎包括但不限于百度，google,bing,sogou 等
© 2025 book.tinynews.org All Rights Reserved. 静思书屋 版权所有