安全关键型航空电子设备基于uwb网络的性能优化

Dinh-Khanh Dang, A. Mifdaoui
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引用次数: 3

摘要

为了在保证系统性能和可靠性的同时减少飞机重量和维护成本,提出了一种基于超宽带和时分多址协议的航空电子通信架构,以替代安全关键型航空电子网络的备份部分。本文对该方案进行了分析和性能优化。首先,利用网络微积分和整数线性规划(ILP)方法进行适当的系统建模和时序分析,以评估端到端延迟并验证系统的可预测性。然后,提出了一种寻找最优TDMA周期持续时间的优化方法,使端到端延迟最小。最后,通过一个实际的航空电子案例,验证了本文提出的方案对提高系统性能的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance optimization of a UWB-based network for safety-critical avionics
To reduce the aircraft weight and maintenance costs while guaranteeing system performance and reliability, an alternative avionic communication architecture based on Ultra Wide Band (UWB) and TDMA protocol is proposed to replace the back-up part of safety-critical avionics network. The analysis and performance optimization of such a proposal is tackled as follows. First, appropriate system modeling and timing analysis, using Network Calculus and Integer Linear Programing (ILP) approach, are provided to evaluate the end-to-end delays and verify system predictability. Then, an optimization approach to find the optimal TDMA cycle duration, which minimizes the end-to-end delays, is proposed. Finally, the efficiency of our proposal to enhance the system performance is validated through a realistic avionic case study.
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