基于轨道角动量的模态编码方法、系统及可读存储介质
By establishing the correspondence between binary sequences and OAM modes, calculating the unit excitation of a uniform circular array and performing Fourier transform decoding, the shortcomings of orbital angular momentum coding in existing communication technologies are solved, thereby achieving channel capacity expansion and improved noise immunity.
CN116455506BActive Publication Date: 2026-07-17SOUTHWEST JIAOTONG UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHWEST JIAOTONG UNIV
- Filing Date
- 2023-04-20
- Publication Date
- 2026-07-17
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Figure CN116455506B_ABST
Abstract
本发明提供了基于轨道角动量的模态编码方法、系统及可读存储介质，涉及无线通信技术领域，包括设置二进制序列的编码长度N，根据OAM模态的编码方法，确定模态数量，将预设的二进制序列和模态数量建立对应关系，得到模态编码；根据模态数量，确定均匀圆环阵列的单元数量；基于均匀圆环阵列的单元数量和模态编码，计算均匀圆环阵列中的单元激励；对均匀圆环阵列辐射的电场E进行离散采样和傅里叶变换，得到OAM模态谱，并对OAM模态谱的有效模态进行解码，得到二进制序列。本发明的有益效果为根据电磁波的轨道角动量这一维度特性，拓展了无线电方法在数字编码技术方面的应用，可以实现对二进制序列的编码、解码，同时该编码方法具有出色的抗噪声性能。
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