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System and method using the pilot frequency from a positive feedback pilot system to improve second loop convergence for a feedforward amplifier
System and method using the pilot frequency from a positive feedback pilot system to improve second loop convergence for a feedforward amplifier
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机译:使用来自正反馈导频系统的导频来改善前馈放大器的第二环路收敛的系统和方法
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摘要
A method for controlling alignment of a control loop in an amplifier system includes generating a pilot signal and injecting the pilot signal into the amplifier system. Any uncanceled pilot signal is detected at an output of the control loop. A frequency of the generated pilot signal is detected and is used in adjusting one or more parameters of the control loop. The adjusting is performed at a predetermined direction and with a predetermined step size. A frequency change in the pilot signal in response to the adjusting is detected. The control loop is iteratively aligned by controlling the adjusting based on the detected frequency change, and the step size is determined based on the detected frequency change.
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