# Sign Subband Adaptive Filter with Selection of Number of Subbands

### Jae Jin Jeong, Seung Hun Kim, Gyogwon Koo, Sang Woo Kim

#### Abstract

The sign subband adaptive filter (SSAF) algorithm is introduced to reduce performance degradation of least-mean-square-type algorithms due to a correlated input signal or an impulsive noise environments. However, this algorithmh has huge computational complexity when the length of the unknown system is large. In this paper, we focus on reduce computational complexity of the conventional SSAF algorithm and propose an SSAF algorithm which selects number of subbands according to convergence state. The specific bands which contributes to decrease the mean-square deviation are used to update the adaptive filter. Thus, the proposed algorithm reduces the computational complexity compared to the conventional SSAF algorithm. The selection mehtod is derived by analysing the mean-square deviation. Through the computer simulation, simulation results are presented that demonstrate the fast convergence rate of the proposed algorithm and save the computational cost.

#### References

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#### Paper Citation

#### in Harvard Style

Jeong J., Kim S., Koo G. and Kim S. (2015). **Sign Subband Adaptive Filter with Selection of Number of Subbands** . In *Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,* ISBN 978-989-758-122-9, pages 407-411. DOI: 10.5220/0005537604070411

#### in Bibtex Style

@conference{icinco15,

author={Jae Jin Jeong and Seung Hun Kim and Gyogwon Koo and Sang Woo Kim},

title={Sign Subband Adaptive Filter with Selection of Number of Subbands},

booktitle={Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},

year={2015},

pages={407-411},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0005537604070411},

isbn={978-989-758-122-9},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,

TI - Sign Subband Adaptive Filter with Selection of Number of Subbands

SN - 978-989-758-122-9

AU - Jeong J.

AU - Kim S.

AU - Koo G.

AU - Kim S.

PY - 2015

SP - 407

EP - 411

DO - 10.5220/0005537604070411