An Evaluation for Phase and Gain Imbalance Compensation in Direct-Conversion Receivers

12th International Civil Engineering Post Graduate Conference;3rd International Symposium on Expertise of Engineering Design

土木建筑工程

Ide, Teruji^1

National Institute of Technology, Kagoshima College, 899-5193, Japan^1

关键词: BER performance;    Blind compensation;    Compensation method;    Computation process;    Direct conversion;    Direct conversion receivers;    Feedback control loops;    Software-defined radios;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/220/1/012062/pdf
DOI  :  10.1088/1755-1315/220/1/012062

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

In this paper, we present a modified compensation method for phase and gain in direct-conversion software-defined radio (SDR) receivers. In direct-conversion receivers, degradation owing to the phase and gain imbalances caused by analog devices. To solve this problem, we present a modified blind compensation techniques based on digital signal processing using a feedback control loop with a practical computation process. The modified method can reduce the complexity when a hardware logic circuit is used, like an FPGA. The simulation results verify that the modified method achieves better BER performance.