| 摘要 |
A transmitter (1) with improved average power comprises a mixer (34) for receiving an input signal (21) and providing a mixed signal (23) to an average power controller (14) comprising a fast automatic gain controller (26) for receiving the mixed signal and providing a conditioned signal to a hard limiter (28) for foldback clipping the conditioned signal to provide an output signal (15). The average power controller further comprises an error control signal generator (24, 30, 36) for generating an error control signal (27) calculated by subtracting (36) an average power estimation (30) of the output signal from a given nominal average power value (24). Finally, the average power controller also comprises a feedback loop (29) for feeding back the error control signal to the mixer for controlling the gain of the input signal.
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