公开(公告)号：US08810950B1

公开(公告)日：2014-08-19

申请号：US13842259

申请日：2013-03-15

Applicant: LSI Corporation

Inventor： Madhusudan Kalluri ,  Sathiyanarayanan Sampath Kumar ,  Jianqing Chen ,  Lei Chen ,  Johnson Yen ,  Sancar K. Olcay

IPC: G11B5/035 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC classification number: G11B20/10046

Abstract: A method for data sequence detection includes generating a first sample stream, equalizing the first sample stream to generate a first equalized sample stream, and buffering the first equalized sample stream. The first sample stream is interpolated to generate a second sample stream. The second sample stream is equalized to generate a second equalized sample stream. In a first processing path, the samples of the buffered first equalized sample stream are filtered using a first noise predictive filter bank to generate a first set of noise sample streams. In a second parallel processing path, the samples of the buffered first equalized sample stream are interpolated using a second interpolation filter to generate an interpolated sample stream and the interpolated sample stream is filtered to generate a second set of noise sample streams. The first equalized sample stream and the second equalized sample stream are processed to generate adapted filter coefficients for the second interpolation filter. The first and second set of noise sample streams are diversity combined to generate a set of combined noise sample streams. A data sequence is detected using the set of combined noise sample streams.

Abstract translation: 一种用于数据序列检测的方法包括生成第一样本流，使第一样本流均衡以产生第一均衡样本流，以及缓冲第一均衡样本流。 内插第一采样流以产生第二采样流。 第二样本流被均衡以产生第二均衡样本流。 在第一处理路径中，使用第一噪声预测滤波器组对缓冲的第一均衡采样流的采样进行滤波，以产生第一组噪声采样流。 在第二并行处理路径中，使用第二内插滤波器对缓冲的第一均衡采样流的样本进行内插，以生成内插采样流，并且内插采样流被滤波以产生第二组噪声采样流。 处理第一均衡采样流和第二均衡采样流，以生成适用于第二内插滤波器的滤波器系数。 第一和第二组噪声采样流被分集组合以产生一组组合的噪声采样流。 使用组合的噪声采样流来检测数据序列。