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文中分析了飞机处于停场、滑行、起飞、降落时飞机四种状态的航空无线信道模型,提取了四种状态下典型信道参数。同时针对航空通信中的宽带系统,通过信道化处理方法,将宽带信道划分成多个并行的窄带信道,设计了一种宽带航空信道模拟系统,可用于解决硬件平台受限于A/D采样速率的瓶颈,降低硬件运算时间,该模拟系统可以完成飞机不同状态下,航空通信的系统设计验证。
In this paper, the airborne wireless channel model of aircraft in four states of parked, taxiing, taking off and landing is analyzed, and the typical channel parameters in four states are extracted. At the same time, aiming at the broadband system in aviation communication, a wideband channel is divided into several parallel narrowband channels through channelization processing. A wideband air channel simulation system is designed to solve the hardware platform limited by A / D sampling rate The bottleneck of the hardware to reduce hardware computing time, the simulation system can be completed under different states of the aircraft, the aviation communications system design verification.