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A novel canonical piecewise-linear function-based behavioral model for concurrent dual-band power amplifier

机译：并发双频功率放大器的基于典范分段线性函数的行为模型

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This paper proposes a novel canonical piecewise-linear (CPWL) function-based behavioral model for concurrent dual-band power amplifier which called 2D-CPWL. Compare with conventional 2D-DPD model, this novel behavioral model has lower complexity and the parameter of model scan be estim-ated by least-square method. Performances are evaluated with a simulational test setup using MATLAB. The dual-band signal center frequency separated by 80 MHz. Lower and upper center frequency are respectively located at 2.61 GHz and 2.69 GHz. The results show that the adjacent channel power ratio (ACPR) is less than -59.18 dBc and normalized mean square error (NMSE) is around -61.31 dB for lower sideband (LSB) and -61.30 dB for upper sideband (USB).
机译：本文针对并发双频功率放大器，提出了一种基于规范的分段线性（CPWL）行为模型。该模型被称为2D-CPWL。与传统的2D-DPD模型相比，该新颖的行为模型具有较低的复杂度，并且通过最小二乘法估计模型扫描的参数。使用MATLAB的模拟测试设置对性能进行评估。双频信号中心频率相隔80 MHz。较低和较高的中心频率分别位于2.61 GHz和2.69 GHz。结果表明，相邻边沿功率比（ACPR）小于-59.18 dBc，下边带（LSB）的归一化均方误差（NMSE）约为-61.31 dB，上边带（USB）的归一化均方误差（NMSE）约为-61.30 dB。

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