Exploration on the ZPW-2000A FSO Track Circuit with Electric Joints

铁路ZPW-2000A无绝缘移频轨道电路若干问题的探讨

There is no need to worry about bad weather when using FSO indoors, of course.

当然，如果在室内使用无线光通信，就没有必要担心恶劣天气。

Centralized Interlock Monitoring System of OCS Switches Based on FSO

基于FSO的接触网开关集中联锁监控系统

There is no messing about with radio-spectrum licences or digging up roads, and FSO can also bypass prohibitive planning restrictions.

另外，也用不着折腾申请无线电频道许可证或者把道路挖开埋光缆，同时，无线光通信也能够绕过禁止性的规划限制。

FSO and its Management Application

食品安全目标及其管理应用

A Multiple-service Multiplex System for FSO Terminal

适用于FSO终端的多业务复接系统

Futuristic though this sounds, FSO is by no means a new idea .

虽然这听起来很是未来派，但自由空间光系统绝不是一种新想法。

Additionally, FSO systems employing on-off keying (OOK) and pulse-position modulation (PPM) in rain and fog conditions are discussed.

同时还对雨、雾天气情况下的开关键控（OOK）和脉冲相位调制（PPM）的性能进行了仿真分析。

FSO ’s main drawback is that bad weather, such as rain or fog, can interrupt the signal.

无线光通信的主要缺点是恶劣的天气，如下雨和大雾，能干扰信号传送。

FSO is not possible with existing indoor lighting because incandescent bulbs cannot switch on and off fast enough.

无线光通信在现有室内光源的情况下不可能实现，因为开关速度不够快。

Instead, the two technologies may end up being used together: Wi-Fi as the uplink, and FSO for the much faster downlink.

相反，这两类技术最终可能是共同存在：无线连接用于上传，无线光通信用于更高速的下载。

As a result, hundreds of businesses, hospitals and universities are already using FSO .

因此，成百上千的企业、医院和大学正在使用无线光通信。

In the home, FSO could be used together with interior lighting to provide extremely fast internet downloads.

在家里，无线光通信可同室内灯光一起提供极高速度的因特网下载。

Advocates of FSO like to say it has the speed of a fibre-optic link, and the convenience of a wireless link.

自由空间光系统的倡导者认为它既有光纤连接的速度又有无线连接的便捷。

fleet signals officer (缩写:FSO)

舰队信号官

frequency sweep oscillator (缩写:FSO)

扫频振荡器

Foreign Service Officer (缩写:FSO)

外事官员