• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on Free-Space Laser Communication Technology XV Jan 28, 2003 San Jose, California, USA >Overview of the FASOLT Experiment and Final Results
【24h】

Overview of the FASOLT Experiment and Final Results

机译：FASOLT实验概述和最终结果

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Within the frame of the FASOLT project the German Aerospace Center (DLR) performed channel measurements and optical data transmission tests on a 61 km near ground horizontal path. The transmitter was situated on a mountain top in the German Alps with the receiver placed on top of a building at the DLR site in Oberpfaffenhofen. Partners in the FASOLT project were Contraves Space, Switzerland and EADS Military Aircraft, Germany. During a period of several months various data sets of scintillation data were recorded in one and two laterally separated transmitter configurations and under different environmental conditions. A significant decrease of number and depth of fades was observed for the two transmitter setup. This paper presents an overview on the scintillation statistics of this particular optical channel. Also beam offsets due to refraction have been measured and results are presented here. As well as these measurements, data transmission tests at bit rates of 100 Mbps have been performed. A two transmitter configuration with a transmit power of 1 W per laser and a sensitive APD receiver front-end plugged in to a 75mm Rx telescope have been used. Despite severe scintillations, bit error rates (BER) below le-4 could be observed, though synchronization losses of the data and clock recovery affected the results. Tests at 155 Mbps (OC-3) and 270 Mbps (SMPTE 259M) were not successful due to high atmospheric attenuation. This paper gives an overview of the entire experimental setup, sums up the results of this long-haul data transmission experiment, and gives an outlook to further DLR activities in the field of free-space optics.
机译：在FASOLT项目的框架内，德国航空航天中心（DLR）在接近地面的61 km水平路径上进行了信道测量和光学数据传输测试。发射器位于德国阿尔卑斯山的山顶上，接收器置于Oberpfaffenhofen的DLR站点的建筑物顶部。 FASOLT项目的合作伙伴是瑞士的Contraves Space和德国的EADS军用飞机。在几个月的时间内，以一种和两种横向分离的变送器配置以及在不同的环境条件下记录了各种闪烁数据数据集。对于两个发送器设置，观察到衰落的数量和深度明显减少。本文概述了该特定光通道的闪烁统计信息。还测量了由于折射引起的光束偏移，并在此处显示了结果。除了这些测量之外，还执行了100 Mbps比特率的数据传输测试。使用了两个发射器配置，每个激光器的发射功率为1 W，并且将敏感的APD接收器前端插入75毫米Rx望远镜。尽管发生了严重的闪烁，但可以观察到低于le-4的误码率（BER），尽管数据的同步丢失和时钟恢复影响了结果。由于高的大气衰减，在155 Mbps（OC-3）和270 Mbps（SMPTE 259M）上的测试不成功。本文概述了整个实验装置，总结了该远程数据传输实验的结果，并对自由空间光学领域的进一步DLR活动进行了展望。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号