Methods and Systems for Signal Fingerprinting

摘要

Systems and methods for modulating a telepowering signal in a downlink communication. Embodiments of the present invention provide a fingerprint module 202 to generate a fingerprint signal that can be modulated with a telepowering signal for communication by a transmission module 110 in a downlink communication. The fingerprint signal is reflected by a wayside equipment module 120 and received by the transmission module 110 to enable an additional communication other than the downlink communication and an uplink communication.