Implementation and Assessment of a Radar Based True-Speed-Over-Ground Estimation Approach Utilizing Complex-Valued Correlation

This paper presents an approach for improving a previously presented velocity estimation system, dedicated for the application on trains. The systems operation is based on the correlation of the received signals from two radar receivers. So far, only the magnitudes of the signals in range domain were considered in the correlation, as including the phase leads to undesired complexities. These complexities and their handling are presented in this work. Furthermore, the improved approach is compared to the previous approach as well as to competing systems.