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Experimental Investigation on Digital Predistortion Technology for Linear Power Amplifier
Author(s): 
Pages: 47-50
Year: Issue:  3
Journal: Journal of Microwaves

Keyword:  自适应数字预失真多项式查找表;
Abstract: 对数字预失真线性功放中两种主要的数字预失真方法:多项式拟合法和查找表构建预失真器法进行研究;首先针对两种方法所对应的不同预失真器结构,就预失真精度、算法复杂性、所需存储空间和自适应能力等进行分析对比;然后采用cdma2000调制信号源对两种方法预失真效果作ADS仿真分析和实验测试,验证了两种方法的可行性,并对两种方法预失真能力作进一步讨论;最后总结了两种预失真方法在功放线性化应用的优缺点和适用范围...
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