公开(公告)号：US07209526B2

公开(公告)日：2007-04-24

申请号：US10889900

申请日：2004-07-12

申请人： Young-Wan Kim ,  Chang-Seok Lee ,  Yu-Shin Kim ,  Hee-Jin Yoo ,  Eun-Suk Kwak

发明人： Young-Wan Kim ,  Chang-Seok Lee ,  Yu-Shin Kim ,  Hee-Jin Yoo ,  Eun-Suk Kwak

IPC分类号： H04L27/00 ,  H04L27/08

CPC分类号： H03D3/009

摘要： An apparatus and a method for detecting imbalances between an I-channel signal and a Q-channel signal in order to suppress a spurious signal in a direct conversion digital quadrature transmission system is disclosed. The apparatus includes: a compensation signal generating unit for generating a first and a second compensation signals based on a digital I-channel and a digital Q-channel signals; a baseband signal generating unit for generating an I-channel and a Q-channel baseband signals by converting a radio frequency signal into a low frequency signal; and a detecting unit for detecting a phase imbalance and an amplitude imbalance between the digital I-channel and the digital Q-channel signals by using a correlation between the first and the second compensation signals with the I-channel and the Q-channel baseband signals.

摘要翻译： 公开了一种用于检测I信道信号和Q信道信号之间的不平衡以便抑制直接转换数字正交传输系统中的寄生信号的装置和方法。 该装置包括：补偿信号产生单元，用于基于数字I信道和数字Q信道信号产生第一和第二补偿信号; 基带信号产生单元，用于通过将射频信号转换成低频信号来产生I信道和Q信道基带信号; 以及检测单元，用于通过使用第一和第二补偿信号与I信道和Q信道基带信号之间的相关性来检测数字I信道和数字Q信道信号之间的相位不平衡和幅度不平衡 。

公开(公告)号：US20050123067A1

公开(公告)日：2005-06-09

申请号：US10889900

申请日：2004-07-12

申请人： Young-Wan Kim ,  Chang-Seok Lee ,  Yu-Shin Kim ,  Hee-Jin Yoo ,  Eun-Suk Kwak

发明人： Young-Wan Kim ,  Chang-Seok Lee ,  Yu-Shin Kim ,  Hee-Jin Yoo ,  Eun-Suk Kwak

IPC分类号： H04L27/26 ,  H03D3/00 ,  H04B15/00

CPC分类号： H03D3/009

摘要： An apparatus and a method for detecting imbalances between an I-channel signal and a Q-channel signal in order to suppress a spurious signal in a direct conversion digital quadrature transmission system is disclosed. The apparatus includes: a compensation signal generating unit for generating a first and a second compensation signals based on a digital I-channel and a digital Q-channel signals; a baseband signal generating unit for generating an I-channel and a Q-channel baseband signals by converting a radio frequency signal into a low frequency signal; and a detecting unit for detecting a phase imbalance and an amplitude imbalance between the digital I-channel and the digital Q-channel signals by using a correlation between the first and the second compensation signals with the I-channel and the Q-channel baseband signals.

摘要翻译： 公开了一种用于检测I信道信号和Q信道信号之间的不平衡以便抑制直接转换数字正交传输系统中的寄生信号的装置和方法。 该装置包括：补偿信号产生单元，用于基于数字I信道和数字Q信道信号产生第一和第二补偿信号; 基带信号产生单元，用于通过将射频信号转换成低频信号来产生I信道和Q信道基带信号; 以及检测单元，用于通过使用第一和第二补偿信号与I信道和Q信道基带信号之间的相关性来检测数字I信道和数字Q信道信号之间的相位不平衡和幅度不平衡 。