| 摘要 |
A wireless communication device (WCD) (10) performs DC removal on a received signal using a coarse DC removal unit (36) that removes relatively large DC components and a fine DC removal loop (42) that removes residual DC components. The coarse DC removal unit (36) can be implemented in a receiver (22), and the fine DC removal loop (42) can be implemented in a modem (26). In addition, a coarse DC estimation loop (44) implemented on the modem (26) may be coupled to the coarse DC removal unit (36) to update DC offset values stored in the DC removal unit (36). By storing coarse DC offset values local ly on the receiver, DC removal can be achieved very quickly.
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