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首页> 外文会议>Atmospheric Propagation IV; Proceedings of SPIE-The International Society for Optical Engineering; vol.6551 >Minimization of Acquisition Time in a Wavelength Diversified FSO Link between Mobile Platforms
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Minimization of Acquisition Time in a Wavelength Diversified FSO Link between Mobile Platforms

机译：移动平台之间的波长多样化FSO链路中的采集时间最小化

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摘要

Free-space optical (FSO) communication links are envisioned as a viable option for the provision of temporary high-bandwidth communication links between moving platforms, such as a ground station and a mobile aerial platform such as an unmanned aerial vehicle. One of the limitations of FSO links is the transmission of laser beams through various weather phenomena. One technique to attempt to overcome the effects of weather, such as fog, is to implement a wavelength diversity scheme between the FSO transmitter and receiver. This paper investigates the minimization of link acquisition times using a wavelength diversity scheme between mobile FSO platforms. The wavelength diversity scheme consists of three different wavelengths, 1.55 μm, 0.85 μm and 10 μm. Each wavelength has different advantages and disadvantages for transmission depending of prevalent weather conditions and atmospheric turbulence conditions. A model of a ground-to-air FSO link is developed in order to predict the beam profile in the receiver plane. A simulation analysis of the transmission properties of the wavelength diversity schemes will be presented. Based on the transmission properties, a method for minimizing link acquisition times through the exploitation of various properties of each wavelength is presented and analyzed.
机译：自由空间光（FSO）通信链路被设想为在移动平台（例如地面站）和移动空中平台（例如无人机）之间提供临时高带宽通信链路的可行选择。 FSO链接的局限性之一是激光束通过各种天气现象的传输。试图克服诸如雾的天气影响的一种技术是在FSO发送器和接收器之间实施波长分集方案。本文研究了使用移动FSO平台之间的波长分集方案最小化链路获取时间。波长分集方案包括三个不同的波长：1.55μm，0.85μm和10μm。取决于普遍的天气条件和大气湍流条件，每个波长的传输都有不同的优缺点。建立了地面对空中FSO链路的模型，以便预测接收器平面中的波束轮廓。将对波长分集方案的传输特性进行仿真分析。基于传输特性，提出并分析了通过利用每种波长的各种特性来最小化链路获取时间的方法。

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