摘要
介绍了民用飞机模块化航空电子系统适航要求文件体系的发展近况;重点描述了模块化系统的适航需求和有关各方的适航责任。
Historically, avionics systems consisted of dedicated Line Replaceable Units (LRUs). The FAA has traditionally written TSOs for these LRUs and their functions. Advancements in digital technology have caused a trend to higher levels of integration. Software now determines functionality, while the hardware has became a platform for input, output, data storage, and software execution. Both America and Europe have recognized the TSO issues for IMA applications, therefore, formed a special subcommittee to deal with them. The work is to establish an acceptable means to obtain FAA抯 airworthiness approval for the installation of an IMA system that uses hardware elements authorized under TSO or its european counterpart.
出处
《航空电子技术》
2002年第4期9-15,共7页
Avionics Technology
