Antenna array for Doppler cancellation in aircraft

Author

Zhang, Chao

Author_Institution

Labs. of Avionics, Tsinghua Univ., Beijing, China

fYear

2011

fDate

16-20 Oct. 2011

Abstract

With the dynamic interpolation of the linear antenna array, the Doppler interference can be canceled for OFDM systems. This has been implemented in the terrestrial vehicle Digital Video Broadcasting (DVB) receivers. In this paper, this space interpolation and diversity scheme has been proposed in Air-to-Ground (A/G) datalinks for aircrafts to cancel the interference caused by Doppler spread. Especially, for Non-Continuous Interferometry OFDM (NCI-OFDM) communication system, the specific interpolation scheme of Orthogonal Antenna Array (OAA) is established for high speed mobile of the aircraft. The compensator estimates the received signal at the point on the flying aircraft which is equivalently static to the ground base-station during the observation period. Computer simulation results show that the proposed scheme can drastically benefit the NCI-OFDM data links with mitigating the interference of Doppler spread caused by the high speed mobile of the aircrafts.

Keywords

OFDM modulation; aircraft antennas; aircraft communication; digital video broadcasting; diversity reception; linear antenna arrays; A-G datalinks; DVB receivers; Doppler cancellation; Doppler interference; NCI-OFDM communication; OAA; air-to-ground datalinks; aircraft; diversity scheme; ground base-station; high speed mobile; linear antenna array; noncontinuous interferometry OFDM communication; orthogonal antenna array; terrestrial vehicle digital video broadcasting receivers; Aircraft; Antenna arrays; Arrays; Doppler effect; Interference; Mobile communication; OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Avionics Systems Conference (DASC), 2011 IEEE/AIAA 30th

Conference_Location

Seattle, WA

ISSN

2155-7195

Print_ISBN

978-1-61284-797-9

Type

conf

DOI

10.1109/DASC.2011.6095902

Filename

6095902