摘要
现代通信系统传输的高带宽、高峰均比信号需要高度线性化的功放。为了降低对功率放大器线性度的要求,提出了一种基于恒包络分解与双天线的线性化传输方法,可采用低线性度功放实现高线性的传输。详细介绍恒包络分解与双天线传输的基本思想和原理并进行了理论推导。仿真实验表明:提出的方法是正确可行的,能达到线性化的传输效果。该方法可应用于数字化、低功耗、低成本的通信系统中。
To transmit high-bandwidth and high peak-average signals,highly linearized power amplifiers are required in modern communication system.In order to reduce the requirements for linearity of power amplifier,a linearized transmission method based on double antennas and constant envelope decomposition is proposed,and the low linearity power amplifiers are employed for the high linearity transmission.The basic ideas and principles of constant envelope decomposition and double antenna transmission method are explained in detail,and the theoretical derivation is carried out.The simulation experiment shows that the method proposed in this paper is correct and feasible,and it can achieve linearity transmission effect.This method can be applied to digital,low-power,and low-cost communication systems.
作者
蔡顺燕
张霞
CAI Shunyan;ZHANG Xia(School of Physics and Engineering Technology, Chengdu Normal University, Chengdu 611130,China)
出处
《成都师范学院学报》
2020年第11期119-124,共6页
Journal of Chengdu Normal University
基金
成都师范学院2015年校级科研项目“数字预失真系统非线性建模研究”(CS15ZB03)。
关键词
恒包络分解
LINC技术
功率放大器
线性化技术
constant envelope decomposition
LINC technology
power amplifier
linearization technology
