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根据相恢复和偏振参考值,提高束旋转速度测量的准确性

Hongyang Wang, Hao Liu, Zijing Zhang

|August 13, 2025

概括

大气动荡会导致旋转速度测量的错误. 新的最佳联合参考VME (OJR-σ) 方法使用偏振束来显著减少这些测量误差.

科学领域:

光学和光子学在光学和光子学.
计量学计量学计量学
光学工程是指光学工程.

背景情况:

大气流会扭曲束,增加远程测量的速度测量误差 (VME).
现有的方法往往忽略了利用维度信息进行错误分析和精度增强.

研究的目的:

引入一种新的方法,即最佳联合参考VME (OJR-σ),用于优化旋转速度测量.
通过利用来自束的偏振信息和优化测量重量来最大限度地减少VME.

主要方法:

开发了OJR-σ方法,引用来自束左侧和右侧偏振组件 (LP和RP) 的错误信息.
集成了 GS 阶段恢复算法用于扭曲补偿和 VME 模式评估.
在最终速度测量中优化了LP和RP组件的权重.

主要成果:

与GJR-σ和G-σ方法相比,OJR-σ在所有模式中显示出较低的VME.
在高VME下降率模式中实现了29%和71%的最大VME减少.
OJR-σ显示,对于高拓电荷模式 (高达69.9%) 和较少的高VME模式,VME显著减少.

结论:

通过利用极化维度,OJR-σ方法有效地减少了在旋转速度测量中的VME.
这种方法提供了一个新的理论框架和实践方法,用于提高自由空间速度测量的准确性.
极化束显示出高精度遥感应用的巨大潜力.

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