Railway ballast bed detection scattering energy extraction method and device

The invention discloses a railway ballast bed detection scattering energy extraction method and device, and relates to the technical field of track signal processing, and the method comprises the steps: carrying out the interference removal of a return signal data matrix, and obtaining a first data matrix; calculating a correlation coefficient between two adjacent columns of data of the first data matrix; according to a correlation coefficient between two adjacent columns of data of the first data matrix, performing reflection energy removal processing on the first data matrix to obtain a second data matrix; performing square calculation on element values in the second data matrix to obtain a third data matrix; intercepting matrix data below the sleeper in the third data matrix, and filtering to obtain a fourth data matrix; and calculating a mean value or an expected value of the element values of each preset numerical value column in the fourth matrix to obtain the intensity of the scattering energy in the r