纳米钢材料无损穿透通信中的信号传输技术研究

Nondestructive through-nano-steel communication is one of the key enabling technologies for information transfer between inside and outside of closed or semi-closed nano-steel containers and plays an irreplaceable role in building modern communication networks in shipping, aeronautics and transportation areas. Efficient signal transmission is the fundamental issue in nondestructive through-nano-steel communications. However, due to the unique characteristics including mixed electric and acoustic transmission, nano-effect channel, and simultaneous transmission of data and energy signals, established signal transmission technologies cannot meet the needs of nondestructive through-nano-steel communications. To bridge the gap, we gathered research strength cross related areas including communication signal processing and nano steel structure to address the issue of efficient signal transmission in nondestructive through-nano-steel communications. Taking spectral efficiency and power efficiency as metrics, we aim to address nano-steel channel modeling based on electric-acoustic network theory, multi-channel multi-carrier through-nano-steel transmission and joint data and energy signal processing to set up theory, technology and methodology for signal transmission in nondestructive through-nano-steel communications and deliver reference results on modeling of nano-effect channel and joint data and energy signal processing.

纳米钢材料的无损穿透通信是实现密闭或半密闭纳米钢容器内外部之间信息交换的关键技术，对于在船舶、航天飞行器和特种储运等重要领域建立现代通信网络具有不可替代的作用。信号的高效传输是纳米钢材料无损穿透通信中的重要基础问题。由于纳米钢材料无损穿透通信具有电声混合、纳米效应信道和数能同传等显著的特性，现有的信号传输技术难以满足要求。针对这一现状，本项目汇集了通信信号处理和钢材料结构领域的跨学科研究力量，致力于纳米钢材料无损穿透通信中高效信号传输技术的研究，以频谱效率和功率效率为指标，解决信道的电声混合网络建模、穿纳米钢多载波信号传输、多通道并行信号传输和数能联合信号处理等关键科学问题，建立纳米钢材料无损穿透通信信号传输的理论、技术和方法体系，在纳米效应信道机理和数能联合信号处理方法等方面提供有借鉴意义和参考价值的研究结果和结论。

本项目针对密闭或半密闭纳米钢容器内外部之间信息交换的关键技术展开研究，由于传输介质具有电声混合、纳米效应信道和数能同传等显著的特性，现有的信号传输技术难以满足要求。本项目主要研究内容包括电声混合网络建模、多通道多载波传输、多通道并行信号传输和数能联合信号处理等，搭建了超声波数据链路和能量链路，建立了信号传输系统的传递函数模型，且验证了信道模型的准确性。利用正交频分复技术进行数据传输，分析了数据链路和能量链路之间的干扰形式，并对不同干扰形式下对系统传输性能的影响进行仿真。对数据链路和能量之间存在的干扰进行消除，分析时域和变换域干扰消除算法的可行性，提出高效的干扰消除方案，降低了传输链路的误码率，提高了传输链路的稳定性。从而为无损穿透通信信号传输的理论、技术和方法体系提供有借鉴意义和参考价值的研究结果和结论。