| 一种自适应线谱对滤波器的终点误差LMS算法及其学习特性 |
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| 引用本文： | 江太辉,张有为.一种自适应线谱对滤波器的终点误差LMS算法及其学习特性[J].信号处理,1997(1). |
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| 作者姓名： | 江太辉 张有为 |
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| 作者单位： | 五邑大学信息科学研究室 |
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| 基金项目： | 广东省高教厅重点科研项目 |
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| 摘 要： | 本文提出了一种计算线谱对（LSP）系数的新算法．该算法以最小均方（LMS）误差型算法为基础，梯度计算使用系统终点误差。对接收到的语音观测样本在一个时序的基础进行迭代更新计算，直接产生LSP系数，形成一个LMS算法的自适应LSP滤波器。实验结果表明，该算法与其它自适应滤器的LMS算法比较，具有更高的收敛率和较低的失调。
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| 关 键 词： | 自适应格型滤波器 LSP滤波器 线性预测 LMS算法 |
An End-Point Error LMS Algorithm of Adaptive Line Spectral Pair Filter and Its Learning Characteristics |
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| Jiang Taihui, Zhang Youwei.An End-Point Error LMS Algorithm of Adaptive Line Spectral Pair Filter and Its Learning Characteristics[J].Signal Processing,1997(1). |
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| Authors: | Jiang Taihui Zhang Youwei |
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| Abstract: | In this paper, a new algorthm used to calculate line spectral pair (LSP) coefficients is presented . The algorithm is based on the least-mean -square (LMS)type a lgorithm , and the end -point error of system is used for gradient estimation . A updating calculation is carried out for received speech samples on a sequential basis to generate directly LSP coefficients , and a adaptive LSP filter on the basis of LMS algorithmis is formed . Experimental results show that the algorithm has higher convergence rate and low misadjustment as compared with that LMS algorithm of other daptive filters. |
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| Keywords: | Adaptive lattice filter LSP filter Linear pretiction LMS algorithm |
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