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基于光纤传输的无人值守远程数采实时监控系统 被引量:2
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作者 张雁霞 渠红光 +2 位作者 王晶 李海涛 阮林波 《现代应用物理》 2016年第3期87-91,共5页
为检查强辐射环境下无人值守远程数采的工作状态,根据半导体激光二极管直接调制原理,设计了控制指令通过光纤传输的实时监控系统。该系统可同时产生幅度分散性小于0.5%、时间分散性小于50ps的四路标准信号和四路触发信号,标准信号与触... 为检查强辐射环境下无人值守远程数采的工作状态,根据半导体激光二极管直接调制原理,设计了控制指令通过光纤传输的实时监控系统。该系统可同时产生幅度分散性小于0.5%、时间分散性小于50ps的四路标准信号和四路触发信号,标准信号与触发信号时间间隔晃动小于1ns,可同时对四通道无人值守远程数采的工作状态及数据传输链路进行实时检查。 展开更多
关键词 实时监控 光纤传输 无人值守远程数采 激光二极管 间接耦合模式 分散性 多路信号
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Distant Bottom Reverberation in Shallow Water 被引量:1
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作者 杨士莪 《Journal of Marine Science and Application》 2010年第1期22-26,共5页
The method of coupled mode is introduced for investigation of bi-static distant bottom reverberation of impulsive source in shallow water, which will not contradict with principle of reciprocity in all cases. And the ... The method of coupled mode is introduced for investigation of bi-static distant bottom reverberation of impulsive source in shallow water, which will not contradict with principle of reciprocity in all cases. And the method of multi-pole for directional source is also introduced. It shows that in case of layered medium, intensity of bi-static bottom reverberation will decease according to the cubic power of receiving time t, and the transverse spatial correlation of bottom reverberation is a little greater than longitudinal correlation for equal separation of receivers, and both vary in form with the receiving time. 展开更多
关键词 shallow water bi-static bottom reverberation spatial correlation of reverberation
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