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Large-signal behavioral model of a packaged RF amplifier based on QPSK-like multisine measurements

机译:基于类似QPSK的多正弦测量的封装RF放大器的大信号行为模型

摘要

This work presents a large-signal time-domain behavioral model of an off-the-shelf RF amplifier based on a multisine excitation that emulates a quadrature phase-shift keyed (QPSK) signal. The multisine has been designed using an automated procedure. As a result, the excitation’s Probability Density Function (PDF) approximates that of a realistic QPSK-modulated digital signal. The model accurately predicts both amplitude and phase of the complex envelope around the carrier as well as higher harmonics.
机译:这项工作提出了一种基于多正弦激励的现成RF放大器的大信号时域行为模型,该模型模拟了正交相移键控(QPSK)信号。多正弦波是使用自动化程序设计的。结果,激励的概率密度函数(PDF)近似于实际的QPSK调制数字信号的概率密度函数。该模型可以准确预测载波周围的复杂包络的幅度和相位以及高次谐波。

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