Ultra wideband technology for aircraft wireless intercommunications systems (AWICS) design
Ultra wideband technology for aircraft wireless intercommunications systems (AWICS) design
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DOI：
10.1109/uwbst.2003.1267803
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发表时间：
2003-11
影响因子：
3.6
通讯作者：
A. Ameti;R. Fontana;E. Knight;E. Richley
中科院分区：
文献类型：
--
作者：
A. Ameti;R. Fontana;E. Knight;E. Richley
当前用于军用多机组飞机的通信系统（ICS）设计使用冗长、累人的电缆将机组人员的头盔或耳机物理连接到分布式音频对讲系统。典型的ICS长绳长度约为100英尺，允许机组人员在执行任务时在飞机上移动时保持通信。这些电缆还允许机组人员在降落时与飞机保持通信，就像他们在发动机启动期间控制飞机一样。不幸的是，目前的有线拓扑结构大大降低了任务效率，阻碍了机组人员的运动，并大大增加了机组人员受伤的风险。这些缺点在军用旋转翼飞机（直升机）上更为明显，在紧急情况下，要求飞机在海上迫降时，几名机组人员受伤或死亡。在迫降过程中，机组人员经常被他们的长ICS绳缠住，阻止或延迟飞机的出口。本文讨论了一种飞机无线通信系统（AWICS）的发展，该系统利用超宽带（UWB）技术来满足这些多机组军用飞机的任务需求。UWB在该应用中具有独特的优势——多路径缓解、低检测概率、对机载遗留系统的低干扰概率以及多用户环境中的高吞吐量。
Current intercommunications system (ICS) designs for military, multicrew aircraft utilize lengthy, encumbering cords to physically attach the crewmember's helmet or headset to a distributed audio intercom system. Typical ICS long-cords are approximately 100 feet in length and allow crewmembers to maintain communications as they move about the aircraft while performing their mission duties. These cords also allow crewmembers to maintain communications with the aircraft when disembarked, as when they are controlling aircraft during engine start-up. Unfortunately, the current wired topology significantly reduces mission effectiveness, impedes crewmember movement, and greatly increases the crewmember's risk of injury. These drawbacks are more pronounced onboard military rotary winged aircraft (helicopters) where several crewmembers have been injured or killed during emergencies requiring the aircraft to ditch at sea. During ditching, crewmembers often became entangled in their lengthy ICS cord, preventing or delaying aircraft egress. This paper discusses the development of an aircraft wireless intercommunications system (AWICS) which utilizes ultra wideband (UWB) technology to address mission requirements for these multicrew, military aircraft. UWB offers unique advantages in this application - multipath mitigation, low probability of detection, low probability of interference to onboard legacy systems, and high throughput in a multiuser environment.