基于FPGA的零中频接收机I/Q不平衡的补偿与实现
首发时间:2013-11-27
摘要:零中频接收机因为他自身的优点,近年来得到了长足的发展,但是由于零中频方案直接将信号从射频搬移到基带,容易造成I/Q两路不平衡从而导致通信系统性能下降。本文从I/Q不平衡产生的原因入手,通过分析原因,提出估计算法,实现补偿算法,在基于FPGA的平台上实现对零中频接收机的I/Q不平衡进行数字估计与补偿。最后给出各种调制模式下的仿真结果分析。表明补偿对通信性能有明显的提高。并且对高阶调制影响明显。
For information in English, please click here
I/Q Imbalance Compensation and Implementation of I/Q Imbalance Compensation and Implementation Based on FPGA
Abstract:In this paper will start with the cause of the I/Q imbalance that because of his own advantage,zero IF receiver has been rapid development in recent years, but due to the zero scheme directly to let the signal from the RF down to baseband and easy to cause the I/Q two imbalance which leads to a decrease in the performance of communication systems, through analyzing of the causes, proposing the estimation algorithm,realizing the compensation algorithm and based on the FPGA platform to realize estimation and compensation of zero IF receiver for digital I/Q imbalance.
Keywords: Communication Orthogonal I/Q balance Amplitude Phase FPGA
基金:
论文图表:
引用
No.****
同行评议
共计0人参与
勘误表
基于FPGA的零中频接收机I/Q不平衡的补偿与实现
评论
全部评论0/1000