实时频谱分析技术在高速铁路电磁辐射测试分析中的应用研究

Application Study on Real-time Spectrum Analysis Technology in HSR Electromagnetic Radiation Test Analysis

提出基于实时频谱分析技术的高速铁路系统电磁辐射测试方法,研究分析实时频谱分析技术和数字荧光技术的实现原理。结合现场实测结果,与传统频谱分析中的扫频和固定频率测试方法相比,验证了实时频谱分析方法对动车组运行时产生的瞬态信号的捕获和分析能力,以及扫频方式下列车高速运行对外界电磁辐射的测试完整性,为改进和提升高速铁路联调联试检测水平,以及轨道交通系统电磁兼容研究能力奠定了基础。

The paper proposes the HSR electromagnetic radiation test method based on real-time spectrum analysis technology, and studies the real-time spectrum analysis technology and the realization principle of digital fluorescence technology. Combined with the field measurement results and compared with the frequency sweep and fixed frequency test methods in traditional spectrum analysis, this paper verifies the ability of realtime spectrum analysis method to capture and analyze the transient signals generated during EMU operation, and the test completeness of the external electromagnetic radiation of HSR train in frequency sweep mode, laying foundation for the improvement of the HSR testing and commissioning as well as the study capability of electromagnetic compatibility in rail transit system.