Elimination of Systematic Error in the Measurement of Group Delay of Frequency Convertor

被引：1

作者：

Wang Jianwu ^{[1
,2
]}

Feng Zhenghe ^{[1
]}

Wang Jianwu ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

[2] Air Fore Air Born Acad, Dept 2, Guilin 541003, Peoples R China

来源：

2015 FIFTH INTERNATIONAL CONFERENCE ON INSTRUMENTATION AND MEASUREMENT, COMPUTER, COMMUNICATION AND CONTROL (IMCCC) | 2015年

关键词：

group delay; measurement; I/Q processing; two-tone method;

D O I：

10.1109/IMCCC.2015.383

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The influence of spectral leakage is analyzed theoretically when the two-tone method and the all-phase discrete Fourier transformation (apDFT) are utilized to measure the group delay of a frequency convertor. Owing to the spectral leakage, the spectral lines of the two tones interact, and the interaction arouses errors in the measurement of group delay. Then, an I/Q method is put forward to eliminate the interaction. Simulations with a frequency convertor demonstrate the feasibility of the I/Q method in eliminating the interaction.

引用

页码：1803 / 1806

页数：4

共 42 条

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