A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method
In this paper, we propose a new uniform filter bank (FB) based on the improved coefficient decimation method (ICDM). In the proposed FB’s design, the ICDM is used to obtain different multi-band frequency responses using a single lowpass prototype filter. The desired subbands are individually obtaine...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
2013-04-01
|
| Series: | Radioengineering |
| Subjects: | |
| Online Access: | http://www.radioeng.cz/fulltexts/2013/13_01_0034_0043.pdf |
| _version_ | 1818040560688037888 |
|---|---|
| author | A. Ambede K. G. Smitha A. P. Vinod |
| author_facet | A. Ambede K. G. Smitha A. P. Vinod |
| author_sort | A. Ambede |
| collection | DOAJ |
| description | In this paper, we propose a new uniform filter bank (FB) based on the improved coefficient decimation method (ICDM). In the proposed FB’s design, the ICDM is used to obtain different multi-band frequency responses using a single lowpass prototype filter. The desired subbands are individually obtained from these multi-band frequency responses by using low order frequency response masking filters and their corresponding ICDM output frequency responses. We show that the proposed FB is a very low complexity alternative to the other FBs in literature, especially the widely used discrete Fourier transform based FB (DFTFB) and the CDM based FB (CDFB). The proposed FB can have a higher number of subbands with twice the center frequency resolution when compared with the CDFB and DFTFB. Design example and implementation results show that our FB achieves 86.59% and 58.84% reductions in resource utilizations and 76.95% and 47.09% reductions in power consumptions when compared with the DFTFB and CDFB respectively. |
| first_indexed | 2024-12-10T08:16:28Z |
| format | Article |
| id | doaj.art-ee87b78cd677458a8cd0ab42fc593297 |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-12-10T08:16:28Z |
| publishDate | 2013-04-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-ee87b78cd677458a8cd0ab42fc5932972022-12-22T01:56:27ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122013-04-012213443A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation MethodA. AmbedeK. G. SmithaA. P. VinodIn this paper, we propose a new uniform filter bank (FB) based on the improved coefficient decimation method (ICDM). In the proposed FB’s design, the ICDM is used to obtain different multi-band frequency responses using a single lowpass prototype filter. The desired subbands are individually obtained from these multi-band frequency responses by using low order frequency response masking filters and their corresponding ICDM output frequency responses. We show that the proposed FB is a very low complexity alternative to the other FBs in literature, especially the widely used discrete Fourier transform based FB (DFTFB) and the CDM based FB (CDFB). The proposed FB can have a higher number of subbands with twice the center frequency resolution when compared with the CDFB and DFTFB. Design example and implementation results show that our FB achieves 86.59% and 58.84% reductions in resource utilizations and 76.95% and 47.09% reductions in power consumptions when compared with the DFTFB and CDFB respectively.www.radioeng.cz/fulltexts/2013/13_01_0034_0043.pdfFIR filter bankflexibilityimproved coefficient decimation methodlow complexity |
| spellingShingle | A. Ambede K. G. Smitha A. P. Vinod A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method Radioengineering FIR filter bank flexibility improved coefficient decimation method low complexity |
| title | A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method |
| title_full | A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method |
| title_fullStr | A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method |
| title_full_unstemmed | A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method |
| title_short | A New Low Complexity Uniform Filter Bank Based on the Improved Coefficient Decimation Method |
| title_sort | new low complexity uniform filter bank based on the improved coefficient decimation method |
| topic | FIR filter bank flexibility improved coefficient decimation method low complexity |
| url | http://www.radioeng.cz/fulltexts/2013/13_01_0034_0043.pdf |
| work_keys_str_mv | AT aambede anewlowcomplexityuniformfilterbankbasedontheimprovedcoefficientdecimationmethod AT kgsmitha anewlowcomplexityuniformfilterbankbasedontheimprovedcoefficientdecimationmethod AT apvinod anewlowcomplexityuniformfilterbankbasedontheimprovedcoefficientdecimationmethod AT aambede newlowcomplexityuniformfilterbankbasedontheimprovedcoefficientdecimationmethod AT kgsmitha newlowcomplexityuniformfilterbankbasedontheimprovedcoefficientdecimationmethod AT apvinod newlowcomplexityuniformfilterbankbasedontheimprovedcoefficientdecimationmethod |