| 基于二次多项式后验概率估计的汉语数码语音识别 |
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| 引用本文： | 史媛媛,刘加.基于二次多项式后验概率估计的汉语数码语音识别[J].电路与系统学报,1999,4(4):36-41. |
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| 作者姓名： | 史媛媛 刘加 |
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| 作者单位： | 清华大学电子工程系!北京，100084，清华大学电子工程系!北京，100084，清华大学电子工程系!北京，100084 |
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| 基金项目： | 国家自然科学基金!69772020，国家863项目!863－512－9805-10 |
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| 摘 要： | 本文提出了一种可在８位单片机上实现的非特定人汉语数码识别算法。该算法基于最大后验概率分类原理，利用二次多项式估计后验概率分布。其优点是识别算法的简单，不涉及动态规划过程。
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| 关 键 词： | 汉语数码识别 后验概率 语音识别 |
Recognition of Mandarin Vocal numbers Based on the Estimation of Posteriori Probabilities using Quadric Polynomial |
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| SHI Yuan-yuan, LIU Jia, LIU Run-sheng.Recognition of Mandarin Vocal numbers Based on the Estimation of Posteriori Probabilities using Quadric Polynomial[J].Journal of Circuits and Systems,1999,4(4):36-41. |
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| Authors: | SHI Yuan-yuan LIU Jia LIU Run-sheng |
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| Abstract: | A speaker independent Mandarin vocal number recognition algorithm that can be implemented in an 8-bitmicro-controller is proposed. The recognizer is based on the principle of classification by maximizing posteriori probability,and the a posteriori probabilities are estimated by a set of quadric polynomial functions. Wthout dealing with the dynamiccharacteristics of speech signal, the computing comPlexity of proposed recognition algorithm is very low. A recognizerconsisting of two cascaded functional levels and capable of selecting or rejecting is designed. Experiments prove that itsrecognition rate is high enough to satisfy the requirement of practical applications. |
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| Keywords: | Mandarin vocal number recognition A posteriori probability Polynomial estimation |
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