《信号与系统》第二章习题解答

Chapter2LTISystems作业：2.12.52.72.102.112.122.22(a)(c)2.202.232.402.462.471Chapter2ProblemsSolution-101234n2.1Computeandploteachofthefollowingconvolutions:2Chapter2ProblemsSolution2.5DeterminethevalueofN.3Chapter2ProblemsSolution2.7AlinearsystemShastherelationshipbetweenitsinputandoutput(c)Sistime-varying.4Chapter2ProblemsSolution2.10Supposethat(a)Determine(b)Ifcontainsonlythree discontinuities,whatisthevalueofa?Solution：0a11+at52.11Let(a)Compute(b)Compute(c)HowisrelatedtoChapter2ProblemsSolution6Chapter2ProblemsSolution2.12LetShowthatforDeterminethevalueofA.72.20.Evaluatethefollowingintegrals:Chapter2ProblemsSolution8大家有疑问的，可以询问和交流可以互相讨论下，但要小声点9Chapter2ProblemsSolution10Chapter2ProblemsSolution2.22(c)oneperiodof11Chapter2ProblemsSolution2.23DetermineandsketchforthefollowingvalueofT:(a)T=4(b)T=2(c)T=3/2(d)T=112Chapter2ProblemsSolution(a)T=4-5-4-3-10135t(d)T=10t-3-1013t(b)T=20t(c)T=3/213Chapter2ProblemsSolution2.40(a)anLTIsystem:Whatistheimpulseresponseforthissystem?(b)Determinetheresponseof14Chapter2ProblemsSolution2.46ConsideranLTIsystemSandasignalandIfDeterminetheimpulseresponseofS.15Chapter2ProblemsSolution2.47AnLTIsystemwithimpulseresponse02tIneachofthesecases,determinewhetherornotwehaveenoughInformationtodeterminetheoutputWehavenotenoughinformationtodeterminetheoutput16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02t1012t1L04t10123t1-117时域分析例题-1/201t1-101t1L-1/201/213/2t11/23/2L-1-1/201/213/2t11/23/218时域分析例题012t1-101234t1-10123t119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20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