基于卫星导航陆基增强系统VHF数据链中的传输损耗研究

Research on the VHF Data-Link Transmission Loss Based on Satellite Navigation Ground-based Augmentation System

陆基增强系统产生的所有增强信息、下滑道数据及其他相关信息均是通过甚高频数据链发射的,该数据链的性能直接影响到陆基增强系统的性能,而传输损耗是数据链性能中重要方面之一。因此,甚高频数据链中的传输损耗的分析是陆基增强系统研究的一个非常重要的内容。推导出传输损耗的计算公式,并且在MATLAB上得以实现。

Ground-based augmentation system have all enhanced information, drop channel data and other relevant information are VHF data link through the launch, the data link performance directly affects the performance of ground-based augmentation system, and the transmission loss are data-link performance in one important respect Therefore, very high frequency data-link of transmission loss of the research is to ground-based augmentation system for a very heavy content. This paper derived the formula for calculating the transmission loss, and in MATLAB to achieve on