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| 宽带数字接收机的I/Q通道失配校正 | |
| 引用本文： | 陈燕. 宽带数字接收机的I/Q通道失配校正[J]. 宁夏大学学报(自然科学版), 2012, 33(1): 28-30 |
| 作者姓名： | 陈燕 |
| 作者单位： | 华侨大学信息科学与工程学院,福建厦门,362002 |
| 基金项目： | 华侨大学科研基金资助项目(08HZR15) |
| 摘 要： | 由于各种因素的影响,I/Q通道之间通常会发生失配现象,影响接收机的性能.分析了幅相误差校正参数的提取方法,提出了基于FIR滤波器的宽带数字接收机的数字域校正方法,研究了校正频点数、校正频点位置对系统性能的影响.仿真结果表明,这种方法能有效提高宽带接收机I/Q通道的正交一致性. |
| 关 键 词： | I/Q失配 镜像抑制度 正交解调 增益误差 相位误差 |
The Calibration of I/Q Bi-channel Mismatch in Wideband Receiver |
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| Chen Yan. The Calibration of I/Q Bi-channel Mismatch in Wideband Receiver[J]. Journal of Ningxia University(Natural Science Edition), 2012, 33(1): 28-30 | |
| Authors: | Chen Yan |
| Affiliation: | Chen Yan (School of Engineering and Science,Huaqiao University,Xiamen 362002,China) |
| Abstract: | Due to diversified factors,I/Q mismatch generates and the performance of receiver become worse.This paper analysises the method to estimate the I/Q mismatch errors,and a calibration method of digital correction based on FIR filter for wideband digital receiver is proposed.The influence of the number and the position of calibration frequencies on the system is analyzed.The simulation demonstrates that this method can improve the performance of wideband receiver effectively. |
| Keywords: | I/Q mismatch image rejection ratio quadrature demodulation gain error phase errors |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |