摘要
对应用于射频前馈功率放大器中两种自适应控制算法——功率最小算法与相关性最小算法进行了分析论证和仿真验证,结果表明两种算法是等价的,但前者所需付出的软硬件代价远低于后者,更有利于应用于实际工程中。仿真和实验研究表明,上述算法可使功放的ACPR指标改善15dB。
Two kinds of adaptive control algorithms utilized in RF feedforward power amplifier,the minimum power algorithm and the minimum correlation algorithm,are analyzed and simulated in the paper.The results show that both of them are equivalent for the performance of the adaptive control effect.The first algorithm possesses lower complexity in software and hardware design than the latter one and could be more propitious to be used in an actual feedforward power amplifier.The simulation results show that these algorithms could conduce to improve the ACPR performance of RF power amplifier about 15dB or more.
出处
《计算机仿真》
CSCD
2007年第12期320-323,共4页
Computer Simulation
基金
湖北省科技厅2006年科技攻关项目(G06)
关键词
功率放大器
前馈
自适应算法
功率最小
相关性最小
Power amplifier
Feedforward
Adaptive algorithm
Minimum power
Minimum correlation
