Invention Grant
US07652976B2 Method for estimating and compensating IQ imbalance in OFDM systems
有权
IQ系统估计和补偿IQ失衡的方法
- Patent Title: Method for estimating and compensating IQ imbalance in OFDM systems
- Patent Title (中): IQ系统估计和补偿IQ失衡的方法
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Application No.: US11797723Application Date: 2007-05-07
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Publication No.: US07652976B2Publication Date: 2010-01-26
- Inventor: Chao-Kai Wen , Jiun-Yo Lai , Yu-Tao Hsieh , Pang-An Ting
- Applicant: Chao-Kai Wen , Jiun-Yo Lai , Yu-Tao Hsieh , Pang-An Ting
- Applicant Address: TW Hsinchu
- Assignee: Industrial Technology Research Institute
- Current Assignee: Industrial Technology Research Institute
- Current Assignee Address: TW Hsinchu
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Main IPC: H04J11/00
- IPC: H04J11/00
Abstract:
A method for compensating IQ imbalance is disclosed. First, an OFDM signal is received. The OFDM signal is translated into frequency domain, wherein the translated OFDM signal has N sub-carriers noted as Y(1)-Y(N). The IQ imbalance compensation factor is generated according to the k-th sub-carrier of the translated signal Y(k), the (N−k+2)-th sub-carrier of the translated signal Y(N−k+2), and the complex conjugates thereof.
Public/Granted literature
- US20080279221A1 Method for estimating and compensating IQ imbalance in OFDM systems Public/Granted day:2008-11-13
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