[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fRw1d6OH7lzWNufj_t1BsWFvvQYB-o_TisNeW8WfZKqE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-12-13 23:14:40",113870791,[8,9,10,11],"36MHz","3.96MHz","360KHz","396KHz,",{"courseId":13,"courseImg":14,"courseName":15},"73ffde9a5eeca532f1b8a84aed8472df","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9c1e48361b00f3ee2086f4e259ed792b.jpg","电力系统通信技术","某信号的频率范围从40kHz到4MHz,则该信号的带宽为( )",[18,29,35,41,46,52,59,65,68,77],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],113870774,[22,23,24,25],"3600bit\u002Fs","1200bit\u002Fs","7200bit\u002Fs","14400bit\u002Fs","已知一个8进制信号的符号速率为4800波特,则其对应的信息速率是( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":34,"source":27,"type":28},[],113870777,[33,23,24,25],"9600bit\u002Fs","已知一个4制信号的符号速率为4800波特,则其对应的信息速率是( )",{"answer":36,"createTime":5,"id":37,"options":38,"question":40,"source":27,"type":28},[],113870780,[22,23,24,39],"2400bit\u002Fs","某数字通信系统码元速率为1200Baud,M=4时信息传输速率为( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":45,"source":27,"type":28},[],113870782,[22,23,24,33],"某数字通信系统码元速率为1200Baud,M=2时信息传输速率为( )",{"answer":47,"createTime":5,"id":48,"options":49,"question":51,"source":27,"type":28},[],113870783,[22,50,24,33],"6400bit\u002Fs","某数字通信系统码元速率为1200Baud,M=8时信息传输速率为( )",{"answer":53,"createTime":5,"id":54,"options":55,"question":58,"source":27,"type":28},[],113870785,[56,50,24,57],"4800bit\u002Fs","9600bit\u002Fs,","某数字通信系统码元速率为2400Baud,M=8时信息传输速率为( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":64,"source":27,"type":28},[],113870788,[23,56,22,63],"9600 bit\u002Fs,","某数为字传输系统传送八进制码元的传输速率为1200Baud,此时该系统的传信率( )",{"answer":66,"createTime":5,"id":6,"options":67,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":27,"type":28},[],113870793,[72,73,74,75],"幅度是连续的","时间域上全有值","幅度连续,时间间断","幅度离散,","模拟信号的特点是( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],113870794,[81,82,83,84],"10-4","10-5","10-6","10-3,","某数字通信系统的码元速率为1200Baud,接收端在半小时内共接收到216个错误码元,则该系统的误码率为( )"]