Use of first- and second-order sigma–delta quantisers in context of odd-stacked cosine modulated filter banks
The use of sigma–delta (ΣΔ) quantisers in the context of an oversampled odd-stacked cosine modulated filter bank (CMFB) is investigated. Shown is that the exploitation of the ΣΔ quantisers jointly with the CMFB ensures significant robustness of the transmitted signal against transmission errors. In...
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| Veröffentlicht in: | Electronics letters 2013-05, Vol.49 (11), p.703-704 |
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| container_title | Electronics letters |
| container_volume | 49 |
| creator | Abdelkefi, F Ayadi, J |
| description | The use of sigma–delta (ΣΔ) quantisers in the context of an oversampled odd-stacked cosine modulated filter bank (CMFB) is investigated. Shown is that the exploitation of the ΣΔ quantisers jointly with the CMFB ensures significant robustness of the transmitted signal against transmission errors. In this context, an upper bound of the minimum squares error of the reconstructed signal is derived and it is proved that it decreases as (1/r2), where r denotes the CMFB frame redundancy, for the first- and the second-order ΣΔ quantisers. |
| doi_str_mv | 10.1049/el.2013.0803 |
| format | Article |
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Shown is that the exploitation of the ΣΔ quantisers jointly with the CMFB ensures significant robustness of the transmitted signal against transmission errors. 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Shown is that the exploitation of the ΣΔ quantisers jointly with the CMFB ensures significant robustness of the transmitted signal against transmission errors. In this context, an upper bound of the minimum squares error of the reconstructed signal is derived and it is proved that it decreases as (1/r2), where r denotes the CMFB frame redundancy, for the first- and the second-order ΣΔ quantisers.</abstract><cop>Stevenage</cop><pub>The Institution of Engineering and Technology</pub><doi>10.1049/el.2013.0803</doi><tpages>2</tpages></addata></record> |
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| ispartof | Electronics letters, 2013-05, Vol.49 (11), p.703-704 |
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| source | Wiley-Blackwell Open Access Titles |
| subjects | Applied sciences channel bank filters Circuit properties CMFB frame redundancy Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology first‐order sigma‐delta quantisers Information and communications Information, signal and communications theory least squares approximations minimum squares error over‐sampled odd‐stacked CMFB over‐sampled odd‐stacked cosine modulated filter bank quantisation (signal) Sampling, quantization second‐order sigma‐delta quantisers sigma‐delta modulation Signal and communications theory Signal convertors signal reconstruction signal transmission Telecommunications and information theory transmission errors |
| title | Use of first- and second-order sigma–delta quantisers in context of odd-stacked cosine modulated filter banks |
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