公开(公告)号：KR100392385B1

公开(公告)日：2003-07-23

申请号：KR1020010013560

申请日：2001-03-16

Applicant: 한국전자통신연구원

Inventor： 김남일 ,  김응배 ,  오창열 ,  백승권

IPC: H04N7/015

Abstract: PURPOSE: A carrier wave recovering device for digital demodulation is provided to improve the signal recovery performance in the digital demodulation of signals distorted by the frequency offset, phase offset and the interference between symbols in multiple paths, by using a carrier wave recovering device incorporating an equalizer. CONSTITUTION: A carrier wave recovering device for digital demodulation includes a carrier wave recovering element(214) for compensating the phase and frequency errors with respect to an input signal according to a frequency control value, an equalizer(215) for receiving the signal from the carrier wave recovering element to compute an error due to the phase and the interference between symbols caused by the multiple paths, thereby correcting the signal distortion, and a sweeping element(216) for receiving the computed frequency error to transmit the frequency control value to the carrier wave recovering element according to the size of the error.

Abstract translation: 目的：提供一种用于数字解调的载波恢复装置，用于通过使用载波恢复装置来提高由于频率偏移，相位偏移以及多路径中的符号之间的干扰而导致的数字解调信号恢复性能， 均衡器。 一种用于数字解调的载波恢复设备，包括：一个载波恢复单元（214），用于根据一个频率控制值补偿相对于一个输入信号的相位和频率误差;一个均衡器（215），用于接收来自 载波恢复单元，用于计算由于多个路径引起的相位和符号之间的干扰而导致的误差，从而校正信号失真;以及扫频单元（216），用于接收计算的频率误差以将频率控制值发送到 载波恢复元件根据误差的大小而定。

公开(公告)号：KR1020020073761A

公开(公告)日：2002-09-28

申请号：KR1020010013560

申请日：2001-03-16

Applicant: 한국전자통신연구원

Inventor： 김남일 ,  김응배 ,  오창열 ,  백승권

IPC: H04N7/015

CPC classification number: H04L25/03019 ,  H04L27/3818 ,  H04L2025/03522 ,  H04L2025/03598

Abstract: PURPOSE: A carrier wave recovering device for digital demodulation is provided to improve the signal recovery performance in the digital demodulation of signals distorted by the frequency offset, phase offset and the interference between symbols in multiple paths, by using a carrier wave recovering device incorporating an equalizer. CONSTITUTION: A carrier wave recovering device for digital demodulation includes a carrier wave recovering element(214) for compensating the phase and frequency errors with respect to an input signal according to a frequency control value, an equalizer(215) for receiving the signal from the carrier wave recovering element to compute an error due to the phase and the interference between symbols caused by the multiple paths, thereby correcting the signal distortion, and a sweeping element(216) for receiving the computed frequency error to transmit the frequency control value to the carrier wave recovering element according to the size of the error.

Abstract translation: 目的：提供一种用于数字解调的载波恢复装置，通过使用载波回波装置，在多路径中通过频偏，相位偏移和符号之间的干扰，对数字解调中的信号恢复性能进行改进， 均衡器。 构成：用于数字解调的载波恢复装置包括用于根据频率控制值补偿相对于输入信号的相位和频率误差的载波恢复元件（214），用于接收来自 载波回波元件，用于计算由于由多个路径引起的相位和符号之间的干扰引起的误差，从而校正信号失真;以及扫描元件（216），用于接收计算出的频率误差以将频率控制值发送到 载波恢复元件根据误差的大小。