Method for determining short wave rail position geometry and rail deflection under load

摘要

The method involves completely compensating phase distortion and reverse signal sequence by filtering with seven filters. Characteristic filter critical frequency and filter slew rate are determined from measured local equidistant vertical rail position signals. The long-wave and/or short-wave unit of the signals is determined depending on selection of the filters such that another associated short-wave and/or long-wave unit is determined by dual subtraction of doubly filtered rail position signal by an original rail position.