Title :
Adaptive interference suppression methods using transform domain approach in an on-board filter bank for satellite communications
Author :
Ahn, Junil ; Kim, Jongmoon ; Kim, Kiseon
Author_Institution :
Sch. of Inf. & Mechatron. (SIM), Gwangju Inst. of Sci. & Technol. (GIST), Gwangju, South Korea
Abstract :
It is necessary that the satellite transponder has ability to suppress interferences for reliable communications in real applications, specially military areas. Adaptive interference suppression methods using transform domain approach are presented for an on-board filter bank in this paper. The three kinds of algorithms to compute the threshold level are jointly evaluated with the notch filter or the clipper under different interfered environments. From simulation results, it is verified that the proposed methods are helpful to overcome the performance degradation due to interferences. Especially, Notch-Alg. 2 which uses the notch filter and the sample mean of energies of frequency bins shows the best bit error rate (BER) performance in all considered interferences.
Keywords :
channel bank filters; error statistics; interference suppression; notch filters; satellite communication; transponders; adaptive interference suppression methods; bit error rate performance; clipper; frequency bins; notch filter; on-board filter bank; performance degradation; satellite communications; satellite transponder; transform domain approach; Artificial satellites; Bit error rate; Computational modeling; Filter bank; Interference suppression; Military communication; Military computing; Military satellites; Satellite communication; Transponders;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5395990