Track circuit transmission characteristic quantitative evaluation method based on variational mode decomposition
A technology of variational mode decomposition and track circuit, which is applied in the direction of measuring electrical variables, measuring electricity, and measuring devices, can solve problems such as inaccurate evaluation results of track circuit transmission characteristics, improve analysis efficiency, reduce misjudgment, overcome Effects of Mode Aliasing and Frequency Effects
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[0050] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
[0051] Such as figure 1 As shown, a quantitative evaluation method for transmission characteristics of track circuits based on variational mode decomposition includes the following steps:
[0052] S1. Collect the induction signal of the track circuit of the locomotive or the moving inspection car, and divide it into frequency shift induction signals of multiple track circuit sections according to the carrier frequency alter...
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