《信号与系统》第二章习题解答.ppt

《《信号与系统》第二章习题解答.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、Chapter2LTISystems作业：2.12.52.72.102.112.122.22(a)(c)2.202.232.402.462.471Chapter2ProblemsSolution-101234n2.1Computeandploteachofthefollowingconvolutions:2Chapter2ProblemsSolution2.5DeterminethevalueofN.3Chapter2ProblemsSolution2.7AlinearsystemShastherelationship

2、betweenitsinputandoutput(c)Sistime-varying.4Chapter2ProblemsSolution2.10Supposethat(a)Determine(b)Ifcontainsonlythreediscontinuities,whatisthevalueofa?Solution：0a11+at52.11Let(a)Compute(b)Compute(c)HowisrelatedtoChapter2ProblemsSolution6Chapter2ProblemsSolution2

3、.12LetShowthatforDeterminethevalueofA.72.20.Evaluatethefollowingintegrals:Chapter2ProblemsSolution8Chapter2ProblemsSolution9Chapter2ProblemsSolution2.22(c)oneperiodof10Chapter2ProblemsSolution2.23DetermineandsketchforthefollowingvalueofT:(a)T=4(b)T=2(c)T=3/2(d)T

4、=111Chapter2ProblemsSolution(a)T=4-5-4-3-10135t(d)T=10t-3-1013t(b)T=20t(c)T=3/212Chapter2ProblemsSolution2.40(a)anLTIsystem:Whatistheimpulseresponseforthissystem?(b)Determinetheresponseof13Chapter2ProblemsSolution2.46ConsideranLTIsystemSandasignalandIfDeterminet

5、heimpulseresponseofS.14Chapter2ProblemsSolution2.47AnLTIsystemwithimpulseresponse02tIneachofthesecases,determinewhetherornotwehaveenoughInformationtodeterminetheoutputWehavenotenoughinformationtodeterminetheoutput15例1已知一LTI系统在输入信号的作用产生的输出为试求该系统在信号的作用产生的输出。时域分析例题

6、02t1012t1L04t10123t1-116时域分析例题-1/201t1-101t1L-1/201/213/2t11/23/2L-1-1/201/213/2t11/23/217时域分析例题012t1-101234t1-10123t118例2已知一LTI系统的单位若输入信号为单位阶跃冲激响应如图所示，信号，试求其输出时域分析例题19时域分析例题例3图1所示的LTI的单位冲激响应如图2所示，若子系统，试求子系统的单位冲激响应。图120时域分析例题例4已知离散时间信号，要求：1.画出的波形；2.求出满足的序列。21时域分

7、析例题图1例5某离散时间LTI系统的系统框图如图1所示，已知两个子系统的单位冲激响应分别为若输入信号，试求系统的输出22时域分析例题例6某连续时间系统由三个子系统组成，其中总系统及子系统的单位冲激响应如图所示，试求23