直接上转换发射机的自动校准

Radio and Wireless Conference, 2003. RAWCON '03. Proceedings Pub Date : 2003-09-08 DOI:10.1109/RAWCON.2003.1227939

J. Craninckx, S. Donnay

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引用次数: 3

摘要

提出了一种测量和补偿直接上变频发射机模拟缺陷的新方法。通过重新使用发射混频器，射频输出频谱被下转换回基带频率。上下转换过程中的误差现在是相关的，并且提出了所需的测量和数学来提取导致不完美的图像抑制和载波馈通的误差估计。

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Automatic calibration of a direct upconversion transmitter

This paper presents a novel method to measure and compensate the analog imperfections in a direct upconversion transmitter. The RF output spectrum is downconverted back to baseband frequencies by re-using the transmit mixer. Errors in the up- and downconversion process are now correlated, and the required measurements and mathematics are presented to extract estimates for the errors that cause imperfect image rejection and carrier feedthrough.

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Radio and Wireless Conference, 2003. RAWCON '03. Proceedings

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