[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fwM6g8chWa8jhS1k9-Oeh3gQdvsD3gwkt7DKrRXU7og0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-04-18 12:27:50",138963779,[8,9,10,11],"L","S","X","Ku",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},14,"a940660cddc94267435875ff0bd8d598","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcec5b56832d1691f16be0c7bece0c41e.jpg","2024年大唐杯5G技能提升训练在线课程","c3c56e7907f14d3dbcea4af0a3ee98cb","卫星通信系统2024","卫星固定通信业务适用()频段",[21,32,41,50,53,62,71,79,84,94],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],138963776,[25,26,27,28],"地球站","卫星站","地面控制站","以上都是","卫星通信系统的基本组成部分包括()","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],138963777,[36,37,38,39],"光纤","无线电波","微波","红外线","卫星系统的传输介质是()",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],138963778,[45,46,47,48],"两个卫星站之间互通;小站间信息的传输无需中央站转接;组网方式简单","外围各边远站仅与中心站直接发生联系,各边远站之间不能通过卫星直接相互通信(必要时,经中心站转接才能建立联)","网络中的各站,彼此可经卫星直接沟通","星状网和网状网的混合形式系","网状网的网络结构()",{"answer":51,"createTime":5,"id":6,"options":52,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],138963780,[57,58,59,60],"移动卫星业务","数字音频广播","地面观测卫星","星际链路","卫星通信使用频段L波段适用于()",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],138963781,[66,67,68,69],"通信距离远,覆盖面积大","可用频带宽,通信容量大","传输稳定可靠,通信质量高","通信费用与通信距离有关","卫星通信系统的特点错误的是()",{"answer":72,"createTime":5,"id":73,"options":74,"question":78,"source":30,"type":31},[],138963782,[75,76,77],"低轨道卫星","中轨道卫星","地球同步轨道卫星","轨道高度在8000km~18000km左右的是()",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":30,"type":31},[],138963783,[75,76,77],"用户间单跳通信的信号传播延迟一般小于20ms的卫星()",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":30,"type":93},[],138963784,[88,89,90,91],"地面卫星控制中心","跟踪站","遥测站","指令站","地面站包括()",1,{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":30,"type":93},[],138963785,[98,99,100,101],"长途电话","电视广播","互联网","应急通信业务","卫星通信应用范围()"]