机构地区: 广东工业大学信息工程学院
出 处: 《电视技术》 2013年第9期171-174,共4页
摘 要: 针对PA的非线性和记忆效应,有记忆自适应预失真技术是最有效的线性化技术。在选取合适阶数、记忆深度的有记忆多项式模型的基础上,采用RLS和LMS结合的混合算法,并设定误差门限值以使两种算法合理转换。仿真分析表明,该方法可以有效补偿系统的非线性和记忆效应。 In view of the non-linearity and memory effect of PA, the memory adaptive pre-distortion technology is the most effective. On the basis of memory polynomial model with the appropriate order mad memory depth, a combination of RLS and LMS hybrid algorithm is used, and the error threshold is set so that the two algorithms are reasonable conversion. The simulation results show that the method can effectively compensate for nonlinear system and memory effect.