Parallel and real-time implementation of an acoustic echo canceller using oversampled wavelet frame algorithms /
"divide--conquer" approach to meet the stringent filter
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | "divide--conquer" approach to meet the stringent filter acoustic echo cancellers. Besides improving convergence due active system identification based on fast wavelet transform and oversampled frames, the proposed architecture obviates array based on detection of returned pilot signals, using channel probing engine is used to reset the adaptive filter consistently outperforms both the conventional fullband and corrupted by channel noise, eliminates nonstationary echoes with long acoustic delays in length requirement. To cope with time-varying echoes, a oversampled frame decompositionThe proposed architecture is real-time. By combining subband adaptive filtering and Simulation results show that the hybrid architecture subband filters, even when the pilot signals are heavily the need for lengthy filters commonly found in conventional then implemented on a parallel TMS32OC40 computer. This thesis describes a novel echo cancellation system that to subband decorrelation, wavelet decomposition offers a |
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| Item Description: | "Major subject: Electrical Engineering". Vita. |
| Physical Description: | xi, 94 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |