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Keywords: Characteristic indexes
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Journal Articles
Journal:
Railway Sciences
Railway Sciences (2023) 2 (1): 33–47.
Published: 21 March 2023
.... Design/methodology/approach Based on original radar signals, the time–frequency characteristics of radar signals were analyzed, five ballast bed condition characteristic indexes were proposed, including the frequency domain integral area, scanning area, number of intersections with the time axis, number...
