航空自组网链路动态性分析  

Analysis of link dynamics in aeronautical Ad hoc networks

作　　者：郑博[1] 张衡阳[1] 黄国策[1] 

机构地区：[1]空军工程大学信息与导航学院,陕西西安710077

出　　处：《系统工程与电子技术》2013年第2期420-424,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(61202490);航空科学基金(20095596016);陕西省自然科学基金(2010JQ8010)资助课题

摘　　要：在计算飞机通信半径的基础上,通过对飞机间的链路建立数学模型,采用概率计算的方法推导了表征航空自组网链路稳定性的指标———链路寿命、相对速率的期望及分布的数学计算式。利用仿真实验进行了验证,表明理论计算的准确性。结果表明,飞机间的相对速率多分布于100～400m/s之间,其中300～400m/s最为集中;链路寿命大体分布于1 000～2 000s之间,当运动速度增大时,链路寿命期望先增大后减小,且分布趋于短时间区域。Based on the communication radius of aircraft, an analytical framework of the link between air- craft from a probability model is proposed, and the analytical expressions of the expected link lifetime, the rela- tive velocity and their distributions, which are the metrics for link stability, are derived. Furthermore, simula- tions are done to verify the accuracy of the analytical expressions. The results show that the relative velocities between aircraft are mainly distributed between 100 m/s and 400 m/s, scattering mostly from 300 m/s to 400 m/s; link dynamics are mainly distributed between 1 000 s and 2 000 s, moreover, the expected link lifetime increases firstly, then decreases, and its distribution shifts towards the shorter times as the velocity increases.

关 键 词：航空自组网 飞行器 链路动态性 链路寿命 相对速率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]