铁路无线通信系统抗干扰理论与方法研究

Railway (including high-speed railway) wireless communication system constitutes the basic channel for transmitting the train control and train dispatch messages. Hence its reliability becomes extremely critical and important. However, owing to the open-access property of wireless communications, railway communication systems tend to incur various strong interferences, which directly threaten the safety of railway transport. Therefore, particularly concerning the high mobility and the complex interfering environment incurred by railway communications, and then specifically investigating the associated basic anti-interference theory, designing high-reliable wireless receiving and transmitting technologies, as well as eventually contributing national proprietary technical standards for solving anti-interference challenges in exclusive wireless railway communication systems have both remarkable industrial and academic significance..According to the above interpretations, our project will pay attentions to the specific demands of the railway wireless communication system, where its high-mobility and complex interfering environment are particularly taken into account for the sake of solving the interference problem and improving the reliability. Consequently, based on the associated information theory and on the state-of-the-art wireless communication techniques, we focus our research on following critical topics: (1) Anti-interference theorem and its performance bound analysis for railway wireless communication systems; (2) Intelligent interference sensing and analyzing techniques for railway wireless communication system; (3) Intelligent interference suppression techniques for railway wireless communication system; (4) Demonstration platform for anti-interference techniques applied to railway wireless communication systems and verification of critical techniques.

铁路（包括高铁）专用无线通信系统作为列控和列调信息的主要传输通道，对传输可靠性的要求极高。但由于无线通信的开放空间传输，使得铁路专用无线通信网络又极易受到干扰，从而影响铁路运输的安全。因此，如何针对地面高移动性及复杂干扰环境下铁路运输的特殊场景，研究无线通信的抗干扰基础理论问题，设计抗干扰的高可靠接入及传输技术，形成具有我国自主知识产权的铁路专用无线通信系统抗干扰技术标准，具有重要的应用价值和科学意义。.本项目将针对地面高移动及复杂干扰环境下铁路（包括高铁）专用无线通信系统应用需求，以抗干扰与提高可靠性为目的，基于信息理论以及最新无线通信理论与技术，重点研究如下内容：（1）铁路专用无线通信抗干扰理论与性能极限；（2）铁路专用无线通信系统智能干扰感知与分析技术；（3）铁路专用无线通信系统智能干扰抑制技术；（4）铁路专用无线通信系统抗干扰技术验证系统与关键技术测试。

本项研究针对铁路（包括高铁）专用无线通信系统，主要研究了（1）铁路专用无线通信抗干扰理论与性能极限；（2）铁路专用无线通信系统智能干扰感知与分析技术；（3）铁路专用无线通信系统智能干扰抑制技术；（4）铁路专用无线通信系统抗干扰技术验证平台与关键技术测试。项目共发表期刊论文36篇（其中影响因子大于4.0的一区、二区SCI期刊文章20篇），会议论文18篇，申请/授权专利10项，培养研究生30名。获得了一批具有我国自主知识产权的铁路专用无线抗干扰通信的理论、关键技术和方法。通过本项目的研究，形成的成果分别在北京铁路局运营高铁线路上部署了2套多信息融合的铁路无线智能检测与定位系统平台、成都铁路局集团公司贵州安顺站建成一套铁路无线智能检测与定位系统平台、武汉铁路局完成一套车载移动式监测系统和一套便携式监测系统、南宁铁路局沿海高铁建成一套铁路无线智能检测与定位系统平台，应用效果良好。解决实际运行中的铁路无线通信系统被干扰问题，大幅提升服务质量，有力的保证铁路运输的安全性和高效性。研究成果的未来推广具有良好的社会效益与经济效益。