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首页> 外文期刊>Microwave and Wireless Components Letters, IEEE >A 2-D-Canonical Piecewise Linear Function-Based Behavioral Model for Concurrent Dual-Band Power Amplifiers
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A 2-D-Canonical Piecewise Linear Function-Based Behavioral Model for Concurrent Dual-Band Power Amplifiers

机译：并发双频功率放大器的二维规范分段线性函数行为模型

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摘要

A 2-D-canonical piecewise linear (2-D-CPWL) function-based behavioral model is proposed for concurrent dual-band power amplifiers (PAs) in this letter. The model is derived from the Volterra-based 2-D-modified memory polynomial (2-D-MMP) model by replacing the high-order terms with CPWL and it can provide a lower complexity than the 2-D-MMP model and some existing CPWL-based dual-band models. The least-square algorithm can be used to extract the model coefficients. Experimental results show that the proposed 2-D-CPWL model can achieve nearly the same model accuracy and digital predistortion performance compared with the 2-D-MMP model, when a dual-band PA is excited by a combined dual-band long-term evolution signals.
机译：本文针对并发双频功率放大器（PA），提出了一种基于2-D规范分段线性（2-D-CPWL）函数的行为模型。该模型是通过基于CPWL替换高阶项而从基于Volterra的2-D修改的存储多项式（2-D-MMP）模型派生而来的，它的复杂度比2-D-MMP模型低，现有基于CPWL的双频段模型。最小二乘算法可用于提取模型系数。实验结果表明，当组合双频带长期激励双频带功率放大器时，所提出的2-D-CPWL模型与2-D-MMP模型相比，可以实现几乎相同的模型精度和数字预失真性能。进化信号。

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