电子器件2026，Vol.49Issue(2)：266-269,4.DOI:10.3969/j.issn.1005-9490.2026.02.005
零中频接收机IQ不平衡高效校正算法
Efficient IQ Imbalance Correction Algorithm for Zero IF Receiver
何安祥 1姚凯 1侯强 1许思耀1
作者信息
- 1. 中国地质大学(武汉)机械与电子信息学院,湖北 武汉 430074
- 折叠
摘要
Abstract
IQ imbalance is the primary problem in zero-IF receiver,and it is an important index that affects the performance of zero-IF receiver.The anti-noise performance of the feature parameters is improved by converting the time domain signal to the frequency domain for parameter extraction,specific analysis is carried out according to different sources of orthogonal errors,and the parameter separation and extraction are targeted according to different sources of orthogonal errors,so as to realize an efficient IQ imbalance correction algo-rithm.The simulation results show that compared with the traditional algorithm,the proposed algorithm is simple in structure and easy to be implemented,and the image rejection ratio can be increased to more than 60 dB,which can meet the practical application needs of high performance zero-IF receiver.关键词
IQ不平衡/时域/频域/镜像抑制比/分离和提取Key words
IQ imbalance/time domain/frequency domain/image rejection ratio/separation and extraction分类
信息技术与安全科学引用本文复制引用
何安祥,姚凯,侯强,许思耀..零中频接收机IQ不平衡高效校正算法[J].电子器件,2026,49(2):266-269,4.
