| 摘要 |
A pilot adjusting system adjusts the power level of the pilot relative to the power level of the input signal. For example, the pilot adjusting system detects the power level of the input signal on the signal path leading to an RF amplifier. In response to the power level of the input signal, the pilot adjusting system adjusts the power level of the pilot signal which is injected into the signal path prior to the RF amplifier. In certain embodiments, the pilot adjuster adjusts the pilot power level to maintain a desired input signal to pilot signal ratio at the input to the RF amplifier for the input signal range of the RF amplifier. As such, if the input signal power level drops 30dB, the pilot adjuster reduces the power level of the pilot signal by 30dB, thereby maintaining the input signal to pilot ratio throughout the input range of the RF amplifier. Other parameters of the pilot signal can be adjusted relative to other parameters for the input signal prior to the pilot signal being injected into the main signal path prior to the RF amplifier.
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