轨道交通线路线形数据处理与仿真技术研究

Study on the Processing and Simulating Methods for Railway Alignment

轨道交通线路工作条件十分复杂,线路线形较为准确地检测或测量是线路维护的基础。采用数字信号处理理论,应用空间采样、滤波等技术,提出了轨道交通线路线形处理及仿真方法,以实测结果为案例,将一段线路检测数据进行了计算仿真,仿真结果表明,线形处理方法能较好地实现特定频率成分线形的准确提取,以满足线路空间维护要求。研究的结果能够解决无接触线路检测中的线路线形还原仿真的问题,为线路线形空间维护提供有效的分析手段。

The working condition of rail transit lines is very complicated, so more accurate detection or measurement for railway alignment becomes the basis of railway maintenance. Adopting DSP theory and applying the technologies of spatial sampling and filtering, this paper offers the processing and simulating methods for railway alignment. And also this paper takes the measured results as an example, uses the detection data of a certain section for computer simulation. The simulation result shows that this processing method can correctly extract the alignments of specific frequency components and satisfy the requirements of line maintenance. This research can solve the problem of reverting and simulating for railway alignment in the non-contact detection and offer an effective analysis method for railway alignment maintenance.