基于Volterra级数的RFPA特征模型及其仿真实验  

Characteristics modeling and simulation for RFPA based on volterra series

作　　者：林茂六[1] 李娟[1] 徐清华[1] 

机构地区：[1]哈尔滨工业大学电子与信息技术研究院,哈尔滨150001

出　　处：《重庆邮电大学学报（自然科学版）》2009年第3期323-327,共5页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金(60772157);教育部博士点基金(20070213026)

摘　　要：主要运用Volterra级数理论分析射频功放(RFPA)器件工作在弱非线性条件下信号失真特性介绍了Volterra级数在非线性建模中的应用,推导了非线性传递函数的公式。在Advanced Design System 2006A软件的仿真环境下对射频功率放大器进行仿真,利用计算机仿真实现了在弱非线性条件下对任意频率输入时功率放大器的输出频谱估计。The signal distortion commonly caused by mild nonlinearities of devices was analyzed by using volterra series theory. The application of voherra series in modeling nonlinearities of RFPA and a derivative process of nonlinear transfer function were introduced. The RFPA was simulated with Advanced Design System 2006A software, and with programming the simulator responses of RFPA, the output spectrum of arbitrary frequencies input to RFPA was estimated under mild non-linearity condition.

关 键 词：射频功率放大器 VOLTERRA级数 非线性失真 

分 类 号：TN914[电子电信—通信与信息系统]