基于飞行轨迹的无人机通信信道仿真  

Simulation of UAV Communication Channel Based on Flight Trajectory

作　　者：徐仪华[1] 周生奎[2] 朱秋明[2] 黄攀[2] 

机构地区：[1]南京航空航天大学无人机研究院,南京210016 [2]南京航空航天大学电子信息工程学院,南京210016

出　　处：《电讯技术》2013年第5期656-660,共5页Telecommunication Engineering

基　　金：航空科学基金项目(20120152001);中央高校基本科研业务费-无人机专项资金资助(NZ2012012)~~

摘　　要：通过分析无人机之间无线链路的传播损耗、多普勒频率和多径时延等特征参数,提出一种基于三射线的无人机通信信道模型,并给出了无人机飞行轨迹在不同坐标系中的转换公式及已知飞行轨迹求解信道模型参数的方法。最后针对两种不同的典型飞行场景,对无人机通信链路的多径时延、传输损耗及多普勒频率算法进行了仿真验证,并获得了基于飞行轨迹的无人机空空数据链信道模型。该模型对无人机数据链系统参数选取、物理层算法设计和性能分析等具有重要意义。By analyzing the wireless communication hnk＇ s features between two unmanned aerial vehicles （UAV） such as propagation loss, Doppler frequency and multipath delay, a new dynamic channel model based on three- rays is proposed. Then, the transformation method for UAV＇s flight trajectory between different coordinate sys- tems is given and how to get the dynamic channel features from the specified flight trajectories is discussed. Fi- nally, two typical simulation scenarios are used to validate the proposed method in calculating muhipath delay, propagation loss and Doppler frequency and the dynamic air-air data link channel between UAVs is simulated. These results are very helpful for UAV＇s data link system parameters selection, physical layer algorithm design and system performance evaluation.

关 键 词：无人机 通信信道 传播损耗 多普勒频率 动态信道仿真 

分 类 号：V217[航空宇航科学与技术—航空宇航推进理论与工程]