| 摘要 |
A transmit path correction system ( 34 ) for compensating for digital DC offsets, I/Q gain imbalances and I/Q phase imbalances includes a mixed signal forward path ( 36 ) and a mixed signal feedback path ( 38 ). The forward pat ( 36 ), which is operable to process input data symbols to produce at least one analog output signal, preferably includes a digital DC offset correction circuit ( 86 ) for compensating for digital DC offsets in the forward path ( 36 ) using at least one digital feedback signal ( 82, 84 ), an I/Q phase equalization circuit ( 90 ) for compensating for the I/Q phase imbalances in the forward path ( 36 ), and an I/Q gain equalization circuit ( 88 ) for compensating for the I/Q gain imbalances in the forward path ( 36 ) using the digital feedback signal(s) ( 82, 84 ). The feedback pat ( 38 ) processes the analog output of the forward path ( 36 ) to produce the digital feedback signal(s) ( 82, 84 ).
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