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- W1501171800 abstract "Impairments in the analog quadrature modulator can adversely impact the performance of a digital predistortion linearization system. In this paper, we focus on modeling and compensation of frequency-dependent gain/phase imbalance and dc offset when the input and output of the direct upconverter are available. We first propose channel models to describe the effects of these impairments on transmitted I/Q data streams. We then develop algorithms to estimate the parameters of these channel models and to construct I/Q compensators. Performance of the algorithms and the I/Q compensators is shown in conjunction with digital predistortion." @default.
- W1501171800 created "2016-06-24" @default.
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- W1501171800 date "2004-07-08" @default.
- W1501171800 modified "2023-09-26" @default.
- W1501171800 title "Frequency-dependent modulator imbalance in predistortion linearization systems: modeling and compensation" @default.
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- W1501171800 doi "https://doi.org/10.1109/acssc.2003.1292002" @default.
- W1501171800 hasPublicationYear "2004" @default.
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