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1.发明授权Signal distortion elimination apparatus, method, program, and recording medium having the program recorded thereon 有权信号失真消除装置，方法，程序和记录有程序的记录介质公开(公告)号：US08494845B2
公开(公告)日：2013-07-23
申请号：US11913241
申请日：2007-02-16
CPC分类号： G10L2021/02082
摘要： Provided is a signal distortion elimination apparatus comprising: an inverse filter application means that outputs the signal obtained by applying an inverse filter to an observed signal as a restored signal when a predetermined iteration termination condition is met and outputs the signal obtained by applying the inverse filter to the observed signal as an ad-hoc signal when the predetermined iteration termination condition is not met; a prediction error filter calculation means that segments the ad-hoc signal into frames and outputs a prediction error filter of each frame obtained by performing linear prediction analysis of the ad-hoc signal of each frame; an inverse filter calculation means that calculates an inverse filter such that a concatenation of innovation estimates of the respective frames becomes mutually independent among their samples, where the innovation estimate of a single frame (an innovation estimate) is the signal obtained by applying the prediction error filter of the corresponding frame to the ad-hoc signal of the corresponding frame, and outputs the inverse filter; and a control means that iteratively executes the inverse filter application means, the prediction error filter calculation means and the inverse filter calculation means until the iteration termination condition is met.
摘要翻译： 提供了一种信号失真消除装置，包括：逆滤波器应用装置，当满足预定的迭代终止条件时，将通过对观测信号应用反相滤波器获得的信号作为恢复信号输出，并输出通过应用逆滤波器获得的信号 当不满足预定的迭代终止条件时，将观测信号作为ad-hoc信号; 预测误差滤波器计算装置，将所述自组织信号分割为帧，并输出通过对每帧的自组织信号进行线性预测分析获得的每帧的预测误差滤波器; 反向滤波器计算意味着计算逆滤波器，使得各帧的创新估计的级联在其样本之间变得相互独立，其中单个帧（创新估计）的创新估计是通过应用预测误差获得的信号 对相应帧的ad-hoc信号进行相应帧的滤波，并输出逆滤波器; 以及在满足迭代终止条件之前，迭代地执行逆滤波器应用装置，预测误差滤波器计算装置和逆滤波器计算装置的控制装置。
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2.发明申请Signal Distortion Elimination Apparatus, Method, Program, and Recording Medium Having the Program Recorded Thereon 有权信号失真消除装置，方法，程序和记录介质，程序记录在其中公开(公告)号：US20080189103A1
公开(公告)日：2008-08-07
申请号：US11913241
申请日：2007-02-16
IPC分类号： G10L21/02
CPC分类号： G10L2021/02082
摘要： Provided is a signal distortion elimination apparatus comprising: an inverse filter application means that outputs the signal obtained by applying an inverse filter to an observed signal as a restored signal when a predetermined iteration termination condition is met and outputs the signal obtained by applying the inverse filter to the observed signal as an ad-hoc signal when the predetermined iteration termination condition is not met; a prediction error filter calculation means that segments the ad-hoc signal into frames and outputs a prediction error filter of each frame obtained by performing linear prediction analysis of the ad-hoc signal of each frame; an inverse filter calculation means that calculates an inverse filter such that a concatenation of innovation estimates of the respective frames becomes mutually independent among their samples, where the innovation estimate of a single frame (an innovation estimate) is the signal obtained by applying the prediction error filter of the corresponding frame to the ad-hoc signal of the corresponding frame, and outputs the inverse filter; and a control means that iteratively executes the inverse filter application means, the prediction error filter calculation means and the inverse filter calculation means until the iteration termination condition is met.
摘要翻译： 提供了一种信号失真消除装置，包括：逆滤波器应用装置，当满足预定的迭代终止条件时，将通过对观测信号应用反相滤波器获得的信号作为恢复信号输出，并输出通过应用逆滤波器获得的信号 当不满足预定的迭代终止条件时，将观测信号作为ad-hoc信号; 预测误差滤波器计算装置，将所述自组织信号分割为帧，并输出通过对每帧的自组织信号进行线性预测分析获得的每帧的预测误差滤波器; 反向滤波器计算意味着计算逆滤波器，使得各帧的创新估计的级联在其样本之间变得相互独立，其中单个帧（创新估计）的创新估计是通过应用预测误差获得的信号 对相应帧的ad-hoc信号进行相应帧的滤波，并输出逆滤波器; 以及在满足迭代终止条件之前，迭代地执行逆滤波器应用装置，预测误差滤波器计算装置和逆滤波器计算装置的控制装置。
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