TY - GEN
T1 - On biased projection method
AU - Suga, Norisato
AU - Furukawa, Toshihiro
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/1/23
Y1 - 2014/1/23
N2 - In this paper, we propose a new projection method. We consider the noise suppression problem under the condition that there are two types of noise. One is the random noise which is treated as a full-rank process. The other is the structured noise which is treated as a low-rank process. For suppression of these noises, the orthogonal projection and the oblique projection have been known. The orthogonal projection can effectively suppress the random noise but can not remove the structured noise. On the other hand, the oblique projection can perfectly remove the structured noise but enhances the random noise. Therefore, we represent the new projection which is a weighted combination of the orthogonal projection and the oblique projection. We refer to the projection method as biased projection. Moreover, we propose a determination method of the combination weight. A comparison with the other projections shows the efficiency of the biased projection.
AB - In this paper, we propose a new projection method. We consider the noise suppression problem under the condition that there are two types of noise. One is the random noise which is treated as a full-rank process. The other is the structured noise which is treated as a low-rank process. For suppression of these noises, the orthogonal projection and the oblique projection have been known. The orthogonal projection can effectively suppress the random noise but can not remove the structured noise. On the other hand, the oblique projection can perfectly remove the structured noise but enhances the random noise. Therefore, we represent the new projection which is a weighted combination of the orthogonal projection and the oblique projection. We refer to the projection method as biased projection. Moreover, we propose a determination method of the combination weight. A comparison with the other projections shows the efficiency of the biased projection.
UR - http://www.scopus.com/inward/record.url?scp=84988299618&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84988299618&partnerID=8YFLogxK
U2 - 10.1109/ICSPCS.2014.7021112
DO - 10.1109/ICSPCS.2014.7021112
M3 - Conference contribution
AN - SCOPUS:84988299618
T3 - 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
BT - 2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
A2 - Wysocki, Beata J.
A2 - Wysocki, Tadeusz A.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014
Y2 - 15 December 2014 through 17 December 2014
ER -