A new method for detecting and early-warning in-band interference of the GSM-R network

摘要

The Global System for Mobile Communications-Railway (GSM-R) network is currently used in railway systems of many countries. Interferences sensing and early-warning is an important problem to guarantee reliability and robustness of GSM-R network. This paper proposes a new method for inband interference detecting and early-warning of GSM-R network. The method is based on the statistical features of the instantaneous frequency histogram in time domain, which are obtained by a learning procedure. The simulation result shows that the new method can sense weaker interference than GMSK decoder and spectrum sensing; the experiment result prove validity of the method in practice.