同时，采用模拟与实测两种不平顺样本的计算结果表明，本文采用功率谱密度函数的模拟方法可以基本反映轨道的实际不平顺情况。
The calculation results using simulated and measured irregularity indicate that the power spectral density function and the simulated method used here can reflect true condition of rail.
在已有轨道不平顺和轨道谱研究成果的基础上，从接触网不平顺检测数据的时频分析方面对接触网不平顺进行了研究。
The catenary irregularity is researched from time-frequency analysis of the data detected based on existing research results of track irregularity and track spectrum.
为了得到合适的接触网不平顺功率谱模型，对轨道谱模型进行了深入的分析。
The track spectrum model is analyzed deeply to obtain appropriate catenary irregularity power spectrum model.
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