| 一种简化Volterra级数的记忆功放行为模型 |
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| 引用本文： | 杨新,汪琳娜.一种简化Volterra级数的记忆功放行为模型[J].科学技术与工程,2014,14(28). |
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| 作者姓名： | 杨新 汪琳娜 |
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| 作者单位： | 1. 四川师范大学成都学院数理教研室,成都,611745
2. 四川师范大学电子工程学院,成都,611745 |
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| 基金项目： | 四川省教育厅科研项目（项目编号：14ZB0436） |
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| 摘 要： | 考虑强非线性和长记忆效应的功放行为模型,需要降低Volterra级数模型的辨识参数,提出了一种基于简化Volterra级数的功率放大器行为模型。通过对广义记忆多项式模型(GMP)中的交叉相乘项的记忆时间距离l进行有效控制,可以在满足系统误差要求的同时减少辨识参数的数量。仿真结果表明,简化的Volterra级数模型性能优于记忆多项式模型(MP),略低于GMP模型,模型辨识参数大大减少。
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| 关 键 词： | 非线性 Volterra级数 广义记忆多项式 辨识参数 |
| 收稿时间： | 2014/5/21 0:00:00 |
| 修稿时间： | 2014/9/21 0:00:00 |
A behavioral model of power amplifiers with memorybased on simplified Volterra series |
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| Yang Xin and.A behavioral model of power amplifiers with memorybased on simplified Volterra series[J].Science Technology and Engineering,2014,14(28). |
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| Authors: | Yang Xin and |
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| Abstract: | A behavioral model of power amplifiers with memory based on simplified Volterra series is proposed to reduce the identified parameters in Volterra series modle while considering strong nonlinear and long memory effect. At the same time meeting the requirements of the system error,effective controling memory time distance of cross-multiplication item in the general memory polynomial model(GMP) can reduce the number of parameters.Simulation results shows that the performance of simplified Volterra series model is better than the memory polynomial model(MP)and slightly lower than the GMP model ,meanwhile the identified parameters is greatly reduced. |
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| Keywords: | nonlinear volterra series the general memory polynomial the identified parameters |
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