Techniques for Ensuring Co-existence Between B-VHF and Legacy VHF Systems

Kurzfassung

A promising approach for future air traffic control (ATC) is the multi-carrier based broadband communication system B-VHF operated in the very high frequency (VHF) band. In order to allow for a gradual in-band transition from current to future ATC communication system the B-VHF system uses an overlay concept, i.e., it coexists with the current systems in the same frequency band. The two main issues to be solved for a successful co-existence are reduction of out-of-band radiation of the B-VHF transmit signal as well as interference mitigation at the B-VHF receiver. In this paper, methods for ensuring this co-existence are investigated.