| 摘要 |
A DC offset detection and cancellation system for a receiver is disclosed. The DC offset detection and cancellation system comprises a downconverter configured to downconvert a received signal to a baseband level signal, the downconverted signal having a first sampling rate, a filter system configured to filter the downconverted received signal at the first sampling rate, and estimator logic configured to sample the downconverted received signal at the first sampling rate to develop a DC estimate signal representative of any direct current (DC) component present on the downconverted received signal, the filter system configured to develop a second sampling rate, where the first sampling rate is significantly higher than the second sampling rate.
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