公开(公告)号：US09379886B2

公开(公告)日：2016-06-28

申请号：US14793645

申请日：2015-07-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sang-Kyun Kim ,  Mi-Jeong Park ,  Ik-Soo Eo

IPC: H04L7/00 ,  H04L7/04

CPC classification number: H04L7/048 ,  H03H17/028 ,  H03H17/0628 ,  H04L25/05

Abstract: A sample rate converter and a method of converting a sample rate are disclosed herein. The sample rate converter includes a data delay unit, a clock rate conversion unit, a Lagrange polynomial filter unit, a resample position calculation unit, and a resample position compensation unit. The data delay unit delays signals in response to an input clock signal. The clock rate conversion unit converts the sample rate of the signals. The Lagrange polynomial filter unit performs a filtering function on the signals whose rate has been converted. The resample position calculation unit outputs the value (Dint, dfrac) of the resample position of the signals based on a set resample ratio value. The resample position compensation unit corrects the error value of the signals by applying the value (Dint, dfrac) to the signals, and outputs a final signal.

Abstract translation: 本文公开了采样率转换器和转换采样率的方法。 采样率转换器包括数据延迟单元，时钟速率转换单元，拉格朗日多项式滤波器单元，重采样位置计算单元和重采样位置补偿单元。 数据延迟单元响应输入时钟信号延迟信号。 时钟速率转换单元转换信号的采样率。 拉格朗日多项式滤波器单元对其速率已被转换的信号执行滤波功能。 重采样位置计算单元基于设置的重采样比值输出信号的采样位置的值（Dint，dfrac）。 重采样位置补偿单元通过对信号施加值（Dint，dfrac）来校正信号的误差值，并输出最终信号。