Measurement based Spatial Characteristics of MPCs in Train-to-Train Propagation

Kurzfassung

Railway operators for high speed trains, commuter trains or subways request for technologies to increase the density and efficiency on their rails. One of those future technologies is virtual coupling based on train-to-train (T2T) wireless communication links. For the design of a wireless communication system, the knowledge of wave propagation is crucial. To characterize the propagation effects between two moving trains a T2T channel sounding measurement campaign was performed. To post-process the data, we use the Kalman enhanced super resolution tracking (KEST) algorithm to detect and track multipath components (MPCs). Using the single-input single-output measurement data recorded while the transmitter and receiver were in motion, the complex amplitude, the delay and the life time of individual MPCs can be estimated. First results of the post-processing step, the geometrical representation of MPCs using point scatterers and possibilities to identify scattering positions are presented in this paper.