数据链试飞电波传播衰减计算  

Practical Technique for Accurate Evaluation of Radio Propagation in Flight Test of Data-Link

作　　者：金涛[1] 

机构地区：[1]中国飞行试验研究院,西安710089

出　　处：《航空电子技术》2011年第2期13-16,共4页Avionics Technology

摘　　要：数据链作用距离的试飞结果受试验区电波传播衰减影响很大,需要对其进行精确计算,为分析试飞结果提供支持。Fock级数法是计算电波衰减的一种精确方法,本文详细讨论了应用该方法求解试验区电波传播衰减的工程计算问题。Results of Data-Link operation range obtained from flight test is greatly influenced by radio propagation over earth＇s surface in the test region.As a means of results analysis,the singal＇s propagation loss along a given path must be accurately predicted according to a mathematical model.In this paper,the Fock＇series solution which is an accurate method applied to this problem is employed.An algorithm for computing the propagation factor on the basis of Fock＇series solution is presented in detail.

关 键 词：数据链作用距离 Fock级数法 AIRY函数 

分 类 号：TN919[电子电信—通信与信息系统]