Based on the stable character proving of the specimen,we used FFT methods to evaluate the whole specimen space and used MATLAB soft to get the PSD of track irregularity.

• 基于轨道高低不平顺样本的总体平均,对所得到的谱密度进行频率平滑,并与我国一级铁路干线的谱密度曲线进行了对比分析。