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针对当前移频自动闭塞系统采用时域分析方法处理轨道电路移频信号显示出准确率不高等问题,引入小波变换的Mallat算法,借助Matlab,通过对实际信号的数字处理,得到用coif5小波基6层分解和相应阈值可以有效地分析和判断轨道移频信号的结论。
In view of the current frequency-shift automatic blocking system using time-domain analysis of the track circuit frequency signal processing accuracy is not high, the Mallat algorithm introduced by wavelet transform, with Matlab, through the digital processing of the actual signal, get coif5 wavelet base 6 Layer decomposition and corresponding thresholds can effectively analyze and judge the conclusions of orbit frequency-shifted signals.