Abstract :
A new method, ANTI-D( ANTI-Doppler by information aid) , aiming at eliminating ICI (inter-channel interference) caused by DFO (Doppler frequency offset) to improve the performance of AMBC (aviation mobile broadband communication), is presented with a view to the characteristics of the large DFO of aviation channel and the aircraft as a platform of AMBC. The strong ICI caused by large DFO, degrades the performance of AMBC badly. For there are many kinds of equipments, such as navigation equipments and surveillance equipments on an aircraft, as the platform of AMBC, the information of position and the vector of velocity of the aircrafts or ground stations around, called aid information, can be get in real time or near real time, to compute the DFO, according to which the compensation can be done. The simulation results show that ANTI-D based on aid information, resolves the ICI caused by DFO effectively, and makes AMBC get better performance in Enroute phase, and a method combined ANTI-D and channel estimation makes AMBC performance better in Arrival phase as well.
Keywords :
Doppler effect; adjacent channel interference; aircraft communication; broadband networks; Doppler frequency offset; Enroute phase; aviation mobile broadband communication; interchannel interference elimination; performance analysis; Aircraft navigation; Broadband communication; Degradation; Frequency; Interchannel interference; Interference elimination; Mobile communication; Performance analysis; Satellite ground stations; Surveillance;
