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<p>Daytime optical observation has always been an important application in spatial situational awareness. Research has found that interference detection techniques can effectively suppress the influence of the skylight background and improve the detection capability of dim targets. However, it is intuitively believed that the interference detection system only has a small field of view (<i>FOV</i>), which is inconsistent with the experimental results (at least an <i>FOV</i> of 20°). This paper will study the reason why the shearing interference detection system can achieve imaging with a large <i>FOV</i>, provide the theoretical analysis conclusions and the simulation results, and then point out that the <i>FOV</i> of the interference detection system can be greater than 20°. A 97° <i>FOV</i> can form image plane interference.</p>

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Analysis of the field of view of the shearing interference detection system

  • 期刊论文

  • 发表日期：

    2026年7月11日

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  • Rui Gao,
  • Lei Dong,
  • Hongzhuang Li

摘要

Daytime optical observation has always been an important application in spatial situational awareness. Research has found that interference detection techniques can effectively suppress the influence of the skylight background and improve the detection capability of dim targets. However, it is intuitively believed that the interference detection system only has a small field of view (FOV), which is inconsistent with the experimental results (at least an FOV of 20°). This paper will study the reason why the shearing interference detection system can achieve imaging with a large FOV, provide the theoretical analysis conclusions and the simulation results, and then point out that the FOV of the interference detection system can be greater than 20°. A 97° FOV can form image plane interference.