直升机卫星通信信号共轴双旋翼遮挡模型研究  

Coaxial Rotor Blockage Model of Helicopter Satellite Communication Signals

作　　者：喻火根[1] YU Huo-gen(Southwest China Institute of Electronic Technology,Chengdu Sichuan 610036,China)

机构地区：[1]中国西南电子技术研究所

出　　处：《通信技术》2019年第12期2868-2874,共7页Communications Technology

摘　　要：受安装条件限制,直升机卫星通信天线一般安装在直升机旋翼下方、尾梁或机体两侧。直升机在飞行过程中,旋翼遮挡卫星通信信号,造成卫星通信信号衰减。针对卫星通信系统天线受共轴双旋翼直升机旋翼遮挡的情况,分析直升机共轴双旋翼对天线的遮挡过程,结合直升机单旋翼遮挡模型建立共轴双旋翼遮挡的理论模型。为了验证模型的正确性,设计并搭建共轴双旋翼遮挡试验环境。试验结果表明,所提理论模型正确可靠,可对共轴双旋翼直升机卫星通信系统设计提供指导。Helicopter satellite communication antenna is usually installed under helicopter rotor,tail boom or on both sides of helicopter body because of restrict of installation condition.Satellite communication signal attenuation is caused by helicopter rotor Blockage during the flight.Aiming at the problem that satellite communication antenna installed under coaxial rotor of helicopter,the coaxial rotor blockage effects is analyzed.Theory model of coaxial rotor Blockage is established based on single rotor Blockage Model.In order to verify the theory model,the experimental environment is designed and built.The experimental results indicate that the theory model is correct and reliable.The theory model can provide a guidance for the design of coaxial rotor helicopter satellite communication system.

关 键 词：卫星通信 直升机 共轴双旋翼遮挡 理论模型 

分 类 号：TN927[电子电信—通信与信息系统]