一种基于正交基神经网络的非线性卫星信道预失真补偿算法  

Nonlinear satellite channel pre-distortion compensation algorithm based on orthogonal basis neural network

作　　者：许光飞[1] 周长征[1] 葛海龙[1] 

机构地区：[1]中国人民解放军63892部队

出　　处：《现代电子技术》2013年第9期40-42,共3页Modern Electronics Technique

摘　　要：针对卫星信道存在非线性失真严重影响系统性能的问题,提出了一种基于正交基神经网络的预失真补偿算法。该算法利用正交基神经网络的特点,能够一步确定权值,无需迭代,不存在局部极小值问题,计算速度快,误差小,补偿效果明显。Since the satellite channel nonlinear distortion seriously affects the system performance, a pre-distortion compensation algorithm based on orthogonal neural network is proposed to solve this problem. The algorithm which uses the characteristics of the orthogonal basis neural network can determine the weight value directly in one step without iteration. It has the advantages of fast calculation and small error, and has no local minimum.

关 键 词：正交基神经网络 非线性 卫星信道 预失真 

分 类 号：TN927-34[电子电信—通信与信息系统]