电讯技术Issue(6)：795-799,5.DOI:10.3969/j.issn.1001-893x.2013.06.025
移相器幅相误差对 FFT 法校准误差的影响*
Impact of Phase Shift Amplitude/Phase Errors on FFT-based Calibrations
杨顺平1
作者信息
- 1. 中国西南电子技术研究所，成都610036
- 折叠
摘要
Abstract
The impact of phase shifter amplitude / phase errors on the calibrations based on Fast Fourier Transform (FFT)is analyzed in consideration of the errors correlation. A formula to calculate the errors is given. The analysis and simulation are compared,and the result agrees well. It is shown from the formula that the errors re-late to not only the amplitude / phase errors and calibration network′s S-parameter,but also the serial number of the channel in the FFT method. The reason why the accuracy decreases under the condition of large dynamic range can be found. And a new method which can improve the calibration accuracy is proposed.关键词
相控阵/FFT/幅相校准/幅相误差Key words
phased array/FFT/amplitude / phase calibration/amplitude/ phase error分类
信息技术与安全科学引用本文复制引用
杨顺平..移相器幅相误差对 FFT 法校准误差的影响*[J].电讯技术,2013,(6):795-799,5.
