We present a solid foundation for the theory and practice of using pilot tones for estimation and compensation of phase noise in a communication link. We analyze several phase estimators and illustrate their pros and cons, and we derive the necessary optimal signal-to-pilot-power relationship when the transmitted power is shared between the communication signal and the pilot tone. We show that the optimal signal-to-pilot-power ratio increases with decreasing phase noise and with increased additive noise.

中文翻译：

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基于带内和带外频域导频的相位噪声估计


我们为使用导频音来估计和补偿通信链路中的相位噪声的理论和实践提供了坚实的基础。我们分析了几种相位估计器并说明了它们的优缺点，并且当通信信号和导频音之间共享发射功率时，我们得出了必要的最佳信号与导频功率关系。我们表明，最佳信号导频功率比随着相位噪声的降低和加性噪声的增加而增加。