机载嵌入式系统中的多核处理架构研究与分析

摘要

与单核处理器相比较，多核处理器在性能、功耗、体积以及重量各方面都有绝对的优势，这使得多核处理器在机载嵌入式系统中的应用成为必然趋势。在分析了航空电子系统的任务特点之后，介绍了两种最常见的多核处理器系统架构：对称多处理（SMP）和非对称多处理（AMP），对这两种系统架构在机载嵌入式系统的应用进行了研究分析，并分析了其关键技术对实时性、安全性和确定性的影响。%Multi-core processors haveabsolutely advantages over single -core processor in following as-pects:performance,power,volume and weight.These advantages lead the application of multi-core pro-cessors inairborne embedded system to be inevitable .Afterreviewing two multi-core processors systems:AMP,SMP and introduces the characteristics of avionicssystem .Then it analyzes application of the two systems in airborne embedded system and studies their impacts on real-time,reliability and determinism .