The actual angle included between antenna beam direction of radar speed sensor used for measuring speed of the locomotive and horizontal will change as the locomotive vibrations

which lead to a certain deviation between the speed value of radar sensor measuring and the actual speed of the locomotive. In order to improve the accuracy of the speed measurement values

radar speed sensor with a dual antenna can automatically correct the angle between antenna beam and horizontal. By Matlab data analysis and practical test

velocity measurement value of the radar sensor system with angle correction is closer to real locomotive speed.