信号与系统 刘树棠 第二版 中文答案 第4章

L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,CHAPTER4421求下列每一信号的傅立叶变换AB0,COS0TUETTET2SIN3FH12INITT如下图所示TX解A0,21COS000TUEETUETJTJT100JTJTUJT100JTEJT2000012COSJJJTUTBSIN,9623323TJTJTTTEEJEE222239393911SINJJJTTF1XUT212SIN2ETJL29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,212SINI2XXTT当时30时，21221JJJEJEDE时，0JJJX时，3121221JJJEJEJDE时，0XHKKTTTX122KKKJKEXTX12423考虑信号为求如图所示没一个信号的傅立叶变换。0TXTTET其余,01要求求出的傅立叶变化然后根据性质求解。T解JEEJDTEXJJT1110L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,01TXTTXSINCO12RE20EXXX02TXTTXCOSSIN12JIM2110EXJXXL29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,103TXTXJEEXJJ1104TXT211JEEXDJJL29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,424A图中所示实信号有哪些（如果有），其傅立叶变换满足下列各条件的有哪些。L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,解1XT应是奇函数，A,D,0REX2,XT应是偶函数，E,FIM3存在一个实数，使得是实函数，即意味着XT平移后是偶XEJ函数。A,B,E,F4即X00,A,B,C,D,F,0DXL29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,5,即B,C,E,F0DX,X6是周期的，B425设为图信号XT的傅立叶变换JA求BXJ0C求DJXE计算2F画出RE的反变换J解A令则为实偶函数,1TXTT设，则是实偶函数。JEXXTX,EXJ其中0,0XORB7180DTXL29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,C402XDXE376441022DTTDTF1RETXTTXE428A设XT有傅立叶变换NTJEATPTPJX0,0级数表示是的周期信号，其傅立叶为基波频率令求的傅立叶变换表示式TXTY解NAPTP20NNXAAXY100B设如图所示，对下列每一个PT画出YT的频谱JX3PTCOS2T6PTNT2SI7PTNT2L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,解32P21XY6NP2NXY17NNXYP21,L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONSOFFINANCIALDISCIPLINE,ORDAMAGETHECOMPANYSINTERESTSCORRUPTIONANDBRIBERYREVIEWOFTHEACT40,429一个实值连续时间函数XT有傅立叶变换其模与相位如图所示函数JX都有傅立叶变换，他们的模都与的模完全相同，,TXTXTDCBA和J但相位不同，分别如图，相位函数附加一个线,JJBA是通过给和性相位而形成的；相位函数则是0JJDC反转得来；关于是把把反转和附加线性相位结合在一起得到的。利用XT表示的表示式。,TXTXTDCBA和L29,THECOMPANYRESPONSIBLEFORAVARIETYOFPROCEDURESFORREIMBURSEMENTDOCUMENT,INVOICEREVIEW,APPROVALOFWORK30,REGULARLYCONVENEDGENERALMEETINGOFSHAREHOLDERS,PREPARATIONWORKFORTHEMEETING31,THECOMPANYRESPONSIBLEFORPAYROLLMANAGEMENTJOBS,INCLUDINGAROUNDSALARYSURVEY,EMPLOYEESALARY,SALARYACCOUNTINGMETHODSDEVELOPED,PAYROLLACCOUNTING,PAYMENTOFWAGES,BONUSES32,THECOMPANYRESPONSIBLEFORDELIVERYOFFINANCIALPROCEDURES33,ACCORDINGTOTHECOMPANYSSTRATEGICDEVELOPMENTPLAN,THEPREPARATIONANDMANAGEMENTOFFUNDSTOMEETDAYTODAYOPERATINGFUNDINGREQUIREMENTSTOENSURETHECOMPANYSSAFETY,LIQUIDITYANDPROFITABILITYOFTHEFUNDS34,RESPONSIBLEFORTHEENVIRONMENTALPROTECTIONBUILDINGMATERIALSCORPORATIONISSUEDBYTHECORPORATIONANNUAL,MONTHLYECONOMICINDICATORSINTHEASSESSMENTOFTHEECONOMICRESPONSIBILITYSYSTEMOFPROPOSEDAMENDMENTS35,THECOMPANYRESPONSIBLEFORALLTYPESOFCONTRACTSANDTRACKING,IMPLEMENTATION,IMPLEMENTATIONOFTHEAGREEMENT,ABNORMALITYWASDETECTEDINTIMETOTAKEAPPROPRIATEMEASURESANDFEEDBACKTOTHELEADERSHIP36,REGULARINSPECTION,ANALYSIS,BUDGETIMPLEMENTATIONOFTHEBUSINESSANDFINANCIALPERFORMANCE,ANDTOPROPOSEMEASURESTOINCREASEREVENUEANDREDUCEEXPENDITURE37,RESPONSIBLEFORORGANIZINGTHECOMPANYSCONTRACTINGBUSINESSTENDERS38,RESPONSIBLEFORPREPARINGTHEANNUALBUDGETANDFINALACCOUNTS,DISTRIBUTIONOFPROFITS,LOSSCOMPENSATIONPLAN39,RESPONSIBLEFORTHEVIOLATIONS