An Orbital Angular Momentum Mode Estimation Method with an Unknown Beam Axis

被引：0
|
作者：
Shu, Gaofeng [1 ,2 ,3 ]
Chen, Bingxu [1 ]
Li, Ning [1 ,2 ,3 ]
机构：
[1] Henan Univ, Sch Comp & Informat Engn, Kaifeng 475004, Henan, Peoples R China
[2] Henan Univ, Henan Engn Res Ctr Intelligent Technol & Applicat, Kaifeng 475004, Henan, Peoples R China
[3] Henan Univ, Henan Key Lab Big Data Anal & Proc, Kaifeng 475004, Henan, Peoples R China
来源：
2021 IEEE SENSORS | 2021年
基金：
中国国家自然科学基金;
关键词：
Orbital angular momentum (OAM); OAM detection; OAM mode estimation; phase gradient method; RECEPTION;
D O I：
10.1109/SENSORS47087.2021.9639834
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Orbital angular momentum (OAM) beam is very difficult to receive due to the divergence of the beam. The position of the beam axis must be known by the existing receiving methods, including the single point method and the phase gradient method. This article proposes an OAM mode estimation method with an unknown beam axis. This method first estimates the position of the beam axis according to the phase characteristics and then uses the phase gradient method to estimate the OAM mode. The simulation results verify the effectiveness of the method.
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页数：4
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