Joint calibration of missile-loaded phased array antenna by least square method-artificial Hadamard matrix

被引：0
|
作者：
Wang D. [1 ,2 ]
Wang X. [1 ]
He M. [2 ]
Zhang J. [2 ]
Wang X. [1 ]
Su C. [1 ]
机构：
[1] Graduate School of Rocket Force University of Engineering, Xi'an
[2] Beijing Institute of Remote Sensing Equipment, Beijing
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2020年 / 42卷 / 02期
关键词：
Amplitude and phase calibration; Artificial Hadamard matrix; Least square method; Missile-loaded phased array antenna;
D O I：
10.3969/j.issn.1001-506X.2020.02.03
中图分类号：
学科分类号：
摘要：
In order to calibrate the phased array antenna of the ballistic missile seeker more accurately and make up for the shortcomings of the current rotating vector missile-loaded phased array in calibrating, the least square method-artificial Hadamard matrix joint calibration method is proposed. This method uses the least square method to solve the problem that the phase shifter could only provide discrete phase changes and could not accurately obtain the phase change value of the phase shifter when the antenna composite is in the maximum power condition. The artificial Hadamard matrix is constructed to group the antennas, and each group of phase shifters rotates multiple phase elements at the same time, causing that the measured signal changes obviously.Far field calibration experiment shows that this method can achieve calibration results for the missile-loaded phased array antenna very well. © 2020, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：271 / 276
页数：5
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