首页> 外国专利> The manner which decides the update being completed filter coefficient of the adaptation filter which it can be adapted by the LMS algorithm which accompanies front whitening

The manner which decides the update being completed filter coefficient of the adaptation filter which it can be adapted by the LMS algorithm which accompanies front whitening

机译:决定更新完成的方式的自适应滤波器的滤波器系数,可以通过伴随正面白化的LMS算法进行自适应

摘要

As for this application, it regards the manner which decides at least one update being completed filter coefficient of the adaptation filter (22) which it can be adapted by LMS algorithm. With the said manner, filter coefficient of the 1st whitening filter (25 ') is decided, filter coefficient of the especially LPC whitening filter. The 1st whitening filter (25 ') generates the filtering being completed signal. Normalization value is decided on the basis of the value to which one or more which is obtained with the process which decides the filter coefficient of the 1st whitening filter (25 ') was calculated. It is related normalization value, with the energy of the filtering being completed signal. Depending on the filtering being completed signal and normalization value, the adaptation filter (22) one update being completed filter coefficient is decided at least. It is desirable, all the filter coefficients of the adaptation filter (22) concerning update filter coefficient is decided the. Choice figure Drawing 8
机译:对于该应用,考虑了确定至少一个更新完成的自适应滤波器(22)的滤波器系数的方式,可以通过LMS算法对其进行自适应。以此方式,确定第一白化滤波器(25')的滤波系数,尤其是LPC白化滤波器的滤波系数。第一白化滤波器(25')生成滤波完成信号。基于计算出的值来确定归一化值,该值是通过确定第一白化滤波器(25')的滤波器系数的处理而获得的。它是相关的归一化值,其中滤波能量为完成信号。根据滤波完成信号和归一化值,至少确定自适应滤波器(22)一个更新完成滤波器系数。希望决定与更新滤波器系数有关的自适应滤波器(22)的所有滤波器系数。<选择图>图8

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