Verifying oscillation in amplifiers and the mitigation thereof

摘要

A method is provided for detecting and mitigating oscillation in an amplifier. The amplifier is configured to sample a signal being amplified to determine whether the amplifier is oscillating. In addition, the status of the amplifier can be verified based on the apparent signal levels of the signals being amplified. The gain of the amplifier is then adjusted in accordance with whether the amplifier is oscillating or as necessary to maintain gain that is compatible with the system within which the amplifier is operating.

主权项

1. A method, comprising:
sampling a signal in a booster amplifier a plurality of times to obtain a plurality of samples of the signal, the booster amplifier configured to apply a gain to the signal and to operate in a wireless network; determining a signal power ratio for the signal based on the plurality of samples; comparing the signal power ratio to a threshold, wherein the threshold is based on power ratio values of a compressed signal output by self-oscillating amplifiers in the wireless network; and determining that an amplifier within the booster amplifier is self-oscillating in response to the signal power ratio being below the threshold.