改进的自适应多速率(AMR)语音传输信道编码和估计

VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026) Pub Date : 2000-05-15 DOI:10.1109/VETECS.2000.851317

T. Hindelang, M. Kaindl, Joachim Hagenauerl, Max Schmautz, Wen Xu

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引用次数: 16

摘要

提出了一种移动无线信道自适应多速率(AMR)语音传输的可变信道编码方案。虽然它是为GSM开发的，但可变信道编码的基本概念可以应用于其他数字无线电系统，如UMTS。AMR概念通过根据信道质量动态拆分源(语音)和信道编码之间的总比特率，即使在较差的信道条件下也可以实现几乎有线的语音质量。

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Improved channel coding and estimation for adaptive multirate (AMR) speech transmission

A variable channel coding scheme for adaptive multirate (AMR) speech transmission over mobile radio channels is proposed. Although it was developed for the GSM, the basic concept of variable channel coding can be adopted to other digital radio systems like UMTS. The AMR concept allows almost wire-line speech quality even for poor channel conditions by dynamically splitting the gross bit rate between source (speech) and channel coding according to the channel quality.

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来源期刊

VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026)

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