| 摘要 |
Abstract of Disclosure An auto gain control (AGC) algorithm which is suitable for a digital processing system. The AGC algorithm includes an adaptive stage and a sleeping and tuning stage. In the adaptive stage, determining if an strength of a first received signal is within a first range and is larger than a second threshold value, if no, measuring strength for sequentially received signals by adaptively adjusting the gain of the AGC algorithm until the strength of one of the sequentially received signals is within the first range and is larger than the second threshold value. In the sleeping and tuning stage, the AGC algorithm stops tuning the gain for a first period, and then measuring strength for sequentially received signals by iteratively adjusting the gain of the AGC algorithm until the strength of the other one of the sequentially received signals is within a second range. When the strength is within the second range, setting the gain according to the energy and locking the gain for remaining sequentially received signals.
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