Channel error correction apparatus and method
    1.
    发明授权
    Channel error correction apparatus and method 有权
    通道纠错装置及方法

    公开(公告)号:US06526532B1

    公开(公告)日:2003-02-25

    申请号:US09434319

    申请日:1999-11-04

    IPC分类号: G01R3128

    CPC分类号: H04N19/63 H04N19/65 H04N19/89

    摘要: To provide an approach to correction of residual errors in subband-based transmission schemes there is provided a channel error correction apparatus with a first synthesis unit for synthesizing a preliminary output signal from subband signals received via a transmission channel. A subband correcting is achieved through a subband reanalysis unit analyzing the preliminary output signal through subband filtering without downsampling, an error estimation unit estimating errors in subband reanalysis output signals using subband specific error patterns, and an error compensation unit correcting the subband signals using error estimation results. A second synthesis unit then synthesizes a final output signal from output signals of the error compensation unit.

    摘要翻译: 为了提供基于子带的传输方案中的残余误差校正方法,提供了一种具有第一合成单元的信道纠错装置,用于从经由传输信道接收的子带信号合成初步输出信号。 通过子带再分析单元通过子带滤波分析初级输出信号而不进行下采样来实现子带校正,误差估计单元使用子带特定误差模式估计子带再分析输出信号中的误差,以及使用误差估计校正子带信号的误差补偿单元 结果。 然后,第二合成单元从误差补偿单元的输出信号合成最终的输出信号。