• DIRECT IMPLEMENTATION OF A BIDIRECTIONAL NETWORK COMMUNICATION LINK IN CIVIL AIRCRAFT FLIGHT TEST USING MODIFIED LTE AIR-TO-GROUND SYSTEM

      Du, Xianyu; Deng, Guobao; COMAC Flight Test Center (International Foundation for Telemetering, 2019-10)
      This paper mainly describes a preliminary trial implementation of a bidirectional network communication link for aircraft range flight test application based on modified LTE Air-to-Ground systems. The theoretical feasibility of this trial which integrated the existing on-board network-based acquisition system installed on our regional jet and a newly designed modified LTE Air-to-Ground communication system was carefully analysed and validated before system level ground experiments. Finally, several test flights were performed within a specific airspace with two eNodeBs, which configured as an independent LTE network and covered most of the designed flight path, and the test results give us the conclusion that under the promise of deploying reliable ground base stations, LTE system has the potential capability to provide acceptable bandwidth and time delay performance for range flight test application.