Design of the Multi-Channel Cosine-Modulated Filter Bank Using the Bacterial Foraging Optimization Algorithm

ABSTRACT

The design of a multi-channel cosine-modulated filter bank (CMFB) using bacterial foraging optimization (BFO) is proposed. In this work, the canonic signed digit (CSD) technique is used to optimize the filter coefficients. At pass-band frequency, the magnitude response of the proposed filter bank is near to that of a perfect filter. The performance of the proposed BFO scheme is evaluated and compared with that of the reported modified cuckoo search (MCS) and artificial bee colony modified rate (ABC-MR) algorithms for design of the CMFB using different windows. Our simulation results reveal that a reduction up to 88% and 90% can be achieved in average amplitude distortion and average aliasing distortion, respectively, with 22% reduction in computation time using the proposed BFO algorithm when compared with the MCS technique. The proposed BFO algorithm is a more efficient technique for reconstruction of original signals with minimum computation time.

KEYWORDS:

• ABC-MR
• BFO
• MCS
• QMF
• Sub-band coding

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Agya Ram Verma

Agya Ram Verma was born in Fazabad Uttar Pradesh, India. He received the B. Tech degree in Electronic and Instrumentation Engineering from IET MJPRU Bareilly, UP, India, in 2010 and the M. Tech. degree in Electronic and Communication Engineering from the Indian Institute of Information Technology (IIIT), Design and Manufacturing, Jabalpur, India, in 2012. Currently, he is pursuing PhD degree in the Department at the G.B. Pant Engineering College, Pauri, India. His research interests include ECG signal processing, adaptive filtering, and optimization techniques. He has published more than 20 research papers in refereed international journals and conferences.

Yashvir Singh

Yashvir Singh was born in Bulandshahar, Uttar Pradesh, India. He received the B.Sc. Engineering degree from Aligarh Muslim University, Aligarh, Uttar Pradesh, India, in 1989. He completed the M.Tech. degree program from University of Roorkee, Roorkee, in 1991 where he was awarded Gold Medal for standing first in M. Tech. program. He received the PhD degree from Centre for Applied Research in Electronics, Indian Institute of Technology, Delhi, in 2002. He joined the Department of Electronics & Communication Engineering, G. B. Pant Engineering College, Pauri Garhwal, India, in 1992, as Assistant Professor and he became Associate Professor in 1997. Since 2005, he is working as full professor in the Department of Electronics & Communication Engineering, G. B. Pant Engineering College, Pauri Garhwal, India. He is also holding the position of Head of the Department of Electronics & Communication Engineering at G. B. Pant Engineering College, Pauri Garhwal, India. His research interest includes development, modelling, and simulation of semiconductor devices and signal processing. He has published more than 60 research papers in refereed international journals and conferences.