公开(公告)号：KR100452619B1

公开(公告)日：2004-10-13

申请号：KR1020020026853

申请日：2002-05-15

Applicant: 한국과학기술원

Inventor： 손일현 ,  정의림 ,  이용훈

IPC: H04B1/12

Abstract: PURPOSE: A device for estimating and compensating I/Q mismatch is provided to estimate channels, I/Q mismatch, and DC offset in a time region by using LSs(Least Squares), and to compensate the I/Q mismatch and the DC offset by using the estimated value, thereby minimizing training data groups. CONSTITUTION: An estimator(10) estimates I/Q mismatch, DC offset, and a channel coefficient by using LSs from a receiving signal corresponding to training data. A compensator(70) sequentially removes the DC offset and the I/Q mismatch from the receiving signal by using an estimated value, and consists of adders(20,50), a multiplier(40), and a complex conjugate generator(30). The adder(20) removes the DC offset by using the DC offset estimated value. The complex conjugate generator(30) generates a complex conjugate signal of the receiving signal whose DC offset is removed. The multiplier(40) multiplies an I/Q mismatch estimated value by the generated signal. The adder(50) removes the I/Q mismatch.

Abstract translation: 目的：提供一种用于估计和补偿I / Q失配的设备，通过使用LS（最小二乘法）来估计时域中的信道，I / Q失配和DC偏移，并且补偿I / Q失配和DC偏移 通过使用估计值，从而使训练数据组最小化。 构成：估计器（10）通过使用来自对应于训练数据的接收信号中的LS来估计I / Q失配，DC偏移和信道系数。 补偿器（70）利用估计值从接收信号中顺序地消除DC偏移和I / Q失配，并且由加法器（20,50），乘法器（40）和复共轭发生器（30）组成。 。 加法器（20）通过使用DC偏移估计值来去除DC偏移。 复共轭发生器（30）产生去除了DC偏移的接收信号的复共轭信号。 乘法器（40）将I / Q不匹配估计值乘以生成的信号。 加法器（50）消除了I / Q不匹配。

公开(公告)号：KR1020030088813A

公开(公告)日：2003-11-20

申请号：KR1020020026853

申请日：2002-05-15

Applicant: 한국과학기술원

Inventor： 손일현 ,  정의림 ,  이용훈

IPC: H04B1/12

CPC classification number: H04L25/0256 ,  H04L25/061

Abstract: PURPOSE: A device for estimating and compensating I/Q mismatch is provided to estimate channels, I/Q mismatch, and DC offset in a time region by using LSs(Least Squares), and to compensate the I/Q mismatch and the DC offset by using the estimated value, thereby minimizing training data groups. CONSTITUTION: An estimator(10) estimates I/Q mismatch, DC offset, and a channel coefficient by using LSs from a receiving signal corresponding to training data. A compensator(70) sequentially removes the DC offset and the I/Q mismatch from the receiving signal by using an estimated value, and consists of adders(20,50), a multiplier(40), and a complex conjugate generator(30). The adder(20) removes the DC offset by using the DC offset estimated value. The complex conjugate generator(30) generates a complex conjugate signal of the receiving signal whose DC offset is removed. The multiplier(40) multiplies an I/Q mismatch estimated value by the generated signal. The adder(50) removes the I/Q mismatch.

Abstract translation: 目的：提供用于估计和补偿I / Q失配的器件，以通过使用LS（最小二乘法）估计时域中的通道，I / Q失配和DC偏移，并补偿I / Q失配和DC偏移 通过使用估计值，从而最小化训练数据组。 构成：估计器（10）通过使用来自对应于训练数据的接收信号的LS来估计I / Q失配，DC偏移和通道系数。 补偿器（70）通过使用估计值从接收信号顺序地去除DC偏移和I / Q失配，并且由加法器（20,50），乘法器（40）和复共轭发生器（30）组成， 。 加法器（20）通过使用DC偏移估计值去除DC偏移。 复共轭发生器（30）产生其去除DC偏移的接收信号的复共轭信号。 乘法器（40）将I / Q失配估计值乘以所生成的信号。 加法器（50）去除I / Q失配。