公开(公告)号：KR1020010076780A

公开(公告)日：2001-08-16

申请号：KR1020000004135

申请日：2000-01-28

Applicant: 한국전자통신연구원

Inventor： 송윤정 ,  김명섭 ,  오덕길

IPC: H04L27/00

CPC classification number: H04L27/2662 ,  H04L27/0014 ,  H04L27/066 ,  H04L2027/0036

Abstract: PURPOSE: A device and method for parallel-treating timing restoration using interpolation filter is provided to operate a symbol timing restoration circuit which use the interpolation filter in real time, and obtain a symbol timing error with high speed. CONSTITUTION: A frequency down and matching filter(103) downs an input frequency from an analog/digital converter(101) and detects by a matching operation. A digital interpolation filter(111) performs an interpolation filtering operation by a control signal for the output signals from the frequency down and matching filter(103). A decision section(106) decides and outputs a symbol from the input signal. A carrier restoration device(114) restores the carrier after receiving an output signal from the decision section(106). A symbol timing restoration device(112) controls filtering coefficient of the digital interpolation filter according to the input and output signal of decision section(106).

Abstract translation: 目的：提供一种使用内插滤波器并行处理定时恢复的装置和方法，用于实时使用内插滤波器的符号定时恢复电路，并以高速获得符号定时误差。 构成：降频和匹配滤波器（103）降低模拟/数字转换器（101）的输入频率，并通过匹配操作进行检测。 数字内插滤波器（111）通过来自频率下降和匹配滤波器（103）的输出信号的控制信号进行插值滤波操作。 决定部（106）从输入信号中决定并输出符号。 载波恢复装置（114）在从决定部（106）接收到输出信号之后恢复载波。 符号定时恢复装置（112）根据判定部（106）的输入和输出信号控制数字内插滤波器的滤波系数。

公开(公告)号：KR1020010010342A

公开(公告)日：2001-02-05

申请号：KR1019990029162

申请日：1999-07-19

Applicant: 한국전자통신연구원

Inventor： 김명섭 ,  송윤정 ,  이성팔

IPC: H04L27/38

Abstract: PURPOSE: A timing interpolation device and method using the same is provided to use a raised-cosine filter as an interpolation filter, to select the coefficient group of the interpolation filter depending on the difference of a symbol timing phase after tying the coefficient groups of the interpolation filter into some group without using a PLL and to send the symbol timing location and the interpolation filter output. CONSTITUTION: In a timing restoration device of a communication system using an interpolation filter, the digital interpolation filter includes a raised-cosine filter as to prevent a timing slip generated from an A/D converter converting a received analog signal to a digital signal, thereby interpolating an input signal. A symbol timing restoration device generates a control signal allowing to prevent the timing slip using the digital interpolation filter. The timing restoration device prevents the degradation of the property without using the PLL method.

Abstract translation: 目的：提供一种定时插值装置及其使用方法，使用升余弦滤波器作为内插滤波器，根据码元定时相位的差异来选择内插滤波器的系数组， 插值滤波器组成一组而不使用PLL并发送符号定时位置和插值滤波器输出。 构成：在使用内插滤波器的通信系统的定时恢复装置中，数字内插滤波器包括升余弦滤波器，以防止从A / D转换器产生的定时滑动将接收到的模拟信号转换为数字信号，从而 内插输入信号。 符号定时恢复装置产生允许使用数字内插滤波器来防止定时滑移的控制信号。 定时恢复装置防止性能下降而不使用PLL方法。