发明名称 Method and calibration system for IQ DC offset and imbalance calibration by utilizing analytic formulas to quickly determined desired compensation values
摘要 A method for determining a target in-phase DC offset compensation value and a target quadrature-phase DC offset compensation value used for compensating DC offset of a database. The method includes: inputting a reference signal into a database which stores a plurality of compensation sets, each having an in-phase DC offset compensation value and a quadrature-phase DC offset compensation value to obtain a plurality of origin offset suppression (OOS) values corresponding to the compensation sets, respectively; and utilizing the compensation sets and the OOS values to compute the target in-phase DC offset compensation value and the target quadrature-phase DC offset compensation value according to an equation set.
申请公布号 US7203614(B2) 申请公布日期 2007.04.10
申请号 US20050161300 申请日期 2005.07.29
申请人 MEDIATEK INC. 发明人 CHANG CHIA-YI
分类号 G01R35/00 主分类号 G01R35/00
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