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May 29, 2026Chinese Optics0 citationsOpen Access

基于自适应光学技术的差分波前传感性能提升方法研究

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WSWei SongJLJinghan LiuRGRui-Hong Gao

Key Points

  • This research aims to improve the performance of differential wavefront sensing (DWS) technology under atmospheric conditions using adaptive optics.
  • Conducted numerical simulations to analyze atmospheric impacts on DWS technology.
  • Proposed the integration of adaptive optics to compensate for atmospheric interference in DWS signals.
  • Designed and built a dual control loop laser tracking experiment system based on DWS signals and wavefront measurement.
  • In the frequency range of 0.1 Hz to 1 Hz, performance improvements of approximately 10 times were observed with adaptive optics.
  • The experiments demonstrated the feasibility of the laser tracking system under atmospheric disturbances.

Abstract

空间引力波探测计划拟在太空中使用3颗卫星建立等边三角形的星座结构,通过激光外差干涉的方法实现中低频段引力波信号的探测。激光捕获跟瞄技术用于实现卫星间光束的高精度对准,实现三条双向激光链路的构建。差分波前传感(DWS)技术是激光跟瞄阶段的核心,是实现纳弧度级角度分辨的关键。为充分验证激光捕获跟瞄系统的在轨可行性,需对原理样机开展地面长距离验证实验。然而光束在大气中的传输会严重影响DWS技术的角度测量能力,亟需寻求干扰的抑制方案。为此本文首先通过数值仿真的手段,系统分析了大气对DWS的影响,首次提出引入自适应光学技术补偿大气对DWS信号的干扰,之后设计并搭建了基于DWS信号及波前测量的双控制回路激光跟瞄实验系统。引入了像差扰动开展实验,实验结果表明,在0.1 Hz−1 Hz频段,同频段性能可提升约10倍,充分说明了自适应光学系统可以有效提高DWS在大气环境下的测量能力,为后续的激光捕获跟瞄系统长距离大气环境地面验证奠定了基础。

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Cite This Study

Song et al. (2026) studied this question.

synapsesocial.com/papers/6a192de6fab5b468c4416da8https://doi.org/10.37188/co.2026-0028
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