航空电子MB-OFDM-UWB无线互连信道分析与仿真

doi:10.7527/S1000-6893.2018.22739

电子电气工程与控制

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航空电子MB-OFDM-UWB无线互连信道分析与仿真

左沅君, 李峭, 熊华钢, 卢广山

北京航空航天大学电子信息工程学院, 北京 100083

收稿日期:2018-10-19 修回日期:2018-11-30 出版日期:2019-07-15 发布日期:2019-07-24
通讯作者: 李峭 E-mail:avionics@buaa.edu.cn
基金资助:
中央高校基本科研业务费专项资金（YWF-14-DZXY-018）；国防科技基金（0101070）

Analysis and simulation of avionics MB-OFDM-UWB wireless interconnection channel

ZUO Yuanjun, LI Qiao, XIONG Huagang, LU Guangshan

School of Electronics and Information Engineering, Beihang University, Beijing 100083, China

Received:2018-10-19 Revised:2018-11-30 Online:2019-07-15 Published:2019-07-24
Supported by:
The Fundamental Research Funds for the Central Universities (YWF-14-DZXY-018); National Defense Science and Technology Foundation of China (0101070)

摘要/Abstract

摘要： 多频带正交频分复用超宽带（MB-OFDM-UWB）是航空电子内部无线互连（WAIC）的候选通信体制之一，不同于普通的室内无线信道，超宽带信号在金属和复合材料的机舱内部存在复杂的反射和多径干扰。给出一种适用于WAIC应用的MB-OFDM-UWB无线通信系统物理层方案，并参照IEEE802.15.4a标准提出一种适应航空电子机舱内部特征的多簇多径UWB信道模型；通过基于接收球的反射角误差法仿真得到无线信道的冲激响应，确定了机舱环境下信道模型的簇到达率、径到达率和混合因子；进而采用Simulink进行MB-OFDM-UWB信号系统仿真，表明在110 Mb/s码速率条件下，当误码率低于国际电信联盟（ITU）标准规定的10^-6，机舱环境下的信噪比应比普通室内环境高1 dB。另外，在研究过程中，为了确认电磁仿真中接收球半径的有效性，针对基准环境将仿真结果与文献报道的实测结果进行了对比。

关键词: 信道仿真, MB-OFDM, UWB, 通信系统仿真, 航空电子内部无线互连

Abstract: The Multi-Band Orthogonal Frequency Division Multiplexing Ultra WideBand (MB-OFDM-UWB) is one of the communication systems for Wireless Avionics Intra-Communications (WAIC). Unlike indoor wireless channels, UWB ideband signals have complex reflection and multipath interference in metal and composite cabins. In this paper, a physical layer scheme of the MB-OFDM-UWB wireless communication system suitable for WAIC application is presented, and according to the IEEE802.15.4a standard, a multi-cluster and multi-path UWB channel model adapted to the internal characteristics of avionics cabin is proposed. The impulse response of the wireless channel is simulated based on the reflection angle error method of the receiving sphere, and the cluster arrival rate, path arrival rate, and mixing factor of the channel model in the cabin environment are determined. Then the MB-OFDM-UWB signal system simulation using Simulink is carried out. The results show that under the code rate of 110 Mb/s, the signal-to-noise ratio in the cabin environment should be 1 dB higher than that in the normal indoor environment when the bit error rate is lower than 10^-6 specified in the International Telecommunications Union(ITU) standard. In addition, in order to confirm the validity of the receiving sphere radius in electromagnetic simulation, the simulation results are compared with the measured results in the reference environment.

Key words: channel simulation, MB-OFDM, UWB, communication system simulation, wireless avionics intra-communications

中图分类号:

V243.1
TN92

左沅君, 李峭, 熊华钢, 卢广山. 航空电子MB-OFDM-UWB无线互连信道分析与仿真[J]. 航空学报, 2019, 40(7): 322739-322739.

ZUO Yuanjun, LI Qiao, XIONG Huagang, LU Guangshan. Analysis and simulation of avionics MB-OFDM-UWB wireless interconnection channel[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(7): 322739-322739.

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

航空电子MB-OFDM-UWB无线互连信道分析与仿真

Analysis and simulation of avionics MB-OFDM-UWB wireless interconnection channel

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