Frequency-domain Compensator Design of Frequency Response Mismatch in the Broadband Quadrature Reception System

被引：0
|
作者：
Meng, Jie [1 ]
Ye, Peng [2 ]
Zhao, Yu [1 ]
Wang, Houjun [2 ]
Chen, Aijun [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu, Peoples R China
[2] UESTC, Shenzhen Inst Adv Study, Shenzhen, Peoples R China
来源：
2024 IEEE AUTOTESTCON | 2024年
基金：
中国国家自然科学基金;
关键词：
quadrature mixing; time-interleaved ADC; I/Q imbalance; frequency response cascade;
D O I：
10.1109/AUTOTESTCON47465.2024.10697430
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This article focuses on the frequency response errors in the broadband quadrature reception system, namely phase/quadrature (I/ Q) imbalance and time-interleaved analog to digital converter (TIADC) mismatch error. Firstly, the system structure and error model are introduced, proving the feasibility of the joint error compensation method. Then, based on the concept of joint compensation, a frequency domain cascaded error compensation structure was proposed, and the cascaded expression of frequency response for frequency domain compensation is derived. Finally, the effectiveness of the proposed method in improving the dynamic performance indicators of the system was verified through simulation experiments.
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页数：5
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