| 铁路运输与国民经济发展关系的交叉谱分析方法研究 |
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| 引用本文： | 武旭,王瑞军,胡思继.铁路运输与国民经济发展关系的交叉谱分析方法研究[J].中国软科学,2011(5). |
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| 作者姓名： | 武旭 王瑞军 胡思继 |
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| 作者单位： | 北京交通大学交通运输学院,北京,100044 |
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| 摘 要： | 根据相关性原理得出铁路运输指标和经济指标时间序列间的互协方差函数和互相关函数,利用图基-汉宁窗的截尾傅氏变换计算铁路运输指标和经济指标序列间的同相谱和正交谱估计值,表征两者的相关程度、超前滞后关系以及超前和滞后的时间差。实际数据计算结果表明中国铁路运输业的发展基本上滞后于国民经济增长2~3个月。
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| 关 键 词： | 铁路运输 国民经济 交叉谱 互振幅谱 相位谱 |
Cross-spectra Analysis on Relationship between Railway Transportation and National Economy |
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| WU Xu,WANG Rui-jun,HU Si-ji.Cross-spectra Analysis on Relationship between Railway Transportation and National Economy[J].China Soft Science,2011(5). |
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| Authors: | WU Xu WANG Rui-jun HU Si-ji |
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| Institution: | WU Xu,WANG Rui-jun,HU Si-ji(School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | According to the correlation theories,the cross covariance and cross-correlated functions between the railway transportation and economic indicator time series are calculated.Cospectrum and quadrature spectrum estimation that reflect the leading or lagging relationship is conducted on railway transportation and economic indicator time series by the Tukey-Hanning Window-based Censored Fourier Transform.The calculated result using practical data demonstrates that the development of railway transportation lagg... |
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| Keywords: | railway transportation national economy cross-spectral cross-amplitude spectrum phase spectrum |
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