文档介绍：该【数据通信第二阶段作业(同名14592) 】是由【kuailonggua】上传分享，文档一共【29】页，该文档可以免费在线阅读，需要了解更多关于【数据通信第二阶段作业(同名14592) 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured一、判断题(共10道小题,)(错误)。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:B得分:[0]试题分值::?数字调频的频带利用率最低。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:A得分:[5]试题分值::?四相数字调相与4QAM的矢量图一样,所以它们是一回事。正确错误知识点:第2章数据信号的传输学生答案:[B;]标准答案:B得分:[5]试题分值::?(错误)常用的MQAM有4QAM、8QAM、16QAM等。正确错误severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured知识点:第2章数据信号的传输学生答案:[A;]标准答案:B得分:[0]试题分值::?MQAM中M指的是星座图上的点数。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:A得分:[5]试题分值::?(错误)升余弦滚降低通的频带利用率均为η=1波特/Hz。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:B得分:[0]试题分值::?水平奇偶监督码的检错能力不如二维奇偶监督码。正确错误知识点:第3章差错控制学生答案:[A;]标准答案:A得分:[5]试题分值::?(错误)severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured信息反馈不需要信道编码器。正确错误知识点:第3章差错控制学生答案:[B;]标准答案:A得分:[0]试题分值::?(错误)混合纠错检错不需反向信道。正确错误知识点:第3章差错控制学生答案:[A;]标准答案:B得分:[0]试题分值::?循环码属于非线性码。正确错误知识点:第3章差错控制学生答案:[B;]标准答案:B得分:[5]试题分值::?二、单项选择题(共10道小题,)频带利用率最低的调制方式是二相调相2FSK四相调相severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured正交双边带调制知识点:第2章数据信号的传输学生答案:[B;]标准答案:B得分:[5]试题分值::?基带形成网络包括发送滤波器、信道、接收滤波器发送滤波器和接收滤波器发送滤波器、接收滤波器和均衡器发送滤波器、信道、接收滤波器和均衡器知识点:第2章数据信号的传输学生答案:[D;]标准答案:D得分:[5]试题分值::?(错误)频带传输系统中解调后还原的有基带信号基带信号和高次产物高次产物数据信号序列知识点:第2章数据信号的传输学生答案:[A;]标准答案:B得分:[0]试题分值::?(错误)双极性不归零码的功率谱(P=1/2)无离散谱,连续谱的第一个零点在fs处无离散谱,连续谱的第一个零点在2fs处有离散谱,连续谱的第一个零点在fs处severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured有离散谱,连续谱的第一个零点在2fs处知识点:第2章数据信号的传输学生答案:[C;]标准答案:A得分:[0]试题分值::?(错误)某码组的汉明距离为3,它能检错2位码纠错1位码纠错2位码检错2位码或纠错1位码知识点:第3章差错控制学生答案:[C;]标准答案:D;得分:[0]试题分值::?差错控制方式中不需反向信道的是ARQFEC混合纠错检错IRQ知识点:第3章差错控制学生答案:[B;]标准答案:B得分:[5]试题分值::?传输效率最低的差错控制方式为ARQFEC混合纠错检错IRQ知识点:第3章差错控制severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured学生答案:[D;]标准答案:D得分:[5]试题分值::?(错误)线性分组码的汉明距离等于非零码的最小重量;非零码的最大重量;34知识点:第3章差错控制学生答案:[B;]标准答案:A得分:[0]试题分值::?某(n,k)汉明码n=15,r为3456知识点:第3章差错控制学生答案:[B;]标准答案:B得分:[5]试题分值::?(错误)偶监督码的码组中“0”的个数为偶数奇数未知数以上都不对知识点:第3章差错控制学生答案:[A;]标准答案:Cseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured得分:[0]试题分值::?一、判断题(共10道小题,)。正确错误知识点:第2章数据信号的传输学生答案:[B;]标准答案:B得分:[5]试题分值::?(错误)相对调相比绝对调相的频带利用率高。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:B得分:[0]试题分值::?频带传输系统与基带传输系统的主要区别在于增加了调制、解调器。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:A得分:[5]试题分值::?MQAM中M指的是星座图上的点数。正确错误知识点:第2章数据信号的传输severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured学生答案:[A;]标准答案:A得分:[5]试题分值::?单边带调制的频带利用率是双边带调制的2倍。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:A得分:[5]试题分值::?理论上讲,只有横截滤波器N时,才能消除符号间干扰。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:A得分:[5]试题分值::?(错误)第一类部分响应系统的冲激响应波形有符号间干扰,不宜做为基带形成网络。正确错误知识点:第2章数据信号的传输学生答案:[A;]标准答案:B;得分:[0]试题分值::?信息反馈不需要信道编码器。正确错误知识点:第3章差错控制severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasured学生答案:[A;]标准答案:A得分:[5]试题分值::?混合纠错检错不需反向信道。正确错误知识点:第3章差错控制学生答案:[B;]标准答案:B得分:[5]试题分值::?(错误)监督码元只对信息位起监督作用。正确错误知识点:第3章差错控制学生答案:[A;]标准答案:B得分:[0]试题分值::?二、单项选择题(共10道小题,)将低速数据流合并成高速数据流称为数字复接数字数据传输的时分复用统计时分复用智能复用知识点:第2章数据信号的传输学生答案:[B;]标准答案:B得分:[5]试题分值::?满足奈氏第一准则时,符号速率为severalgroupnumber,thenwithb±a,=c,-2~3measurement,suchasproceedsofcvaluesareequalandequaltothedesignvalue,,b,andcvalueswhileonhorizontalverticalerrorsformeasurement,Generalinironanglecodebitatmeasurementlevelpointsgriderrors,omethylverticalboxcenterlinedistancefora,,tobverticalboxdistanceforb,listcanmeasuredseveralgroupnumber,then