Piecemeal method revisited

• URL: http://arxiv.org/abs/2502.06903v1
• Date: Mon, 10 Feb 2025 00:17:56 GMT
• Title: Piecemeal method revisited
• Authors: Yi-Xin Shen, Zhou-Kai Cao, Jian Leng, Xiang-Bin Wang,
• Abstract summary: We present an optical interferometric scheme with at least two telescopes that achieves higher precision than other weak-light interference-based methods. We show that both the original and extended piecemeal methods exhibit strong robustness against errors in baseline lengths and orientations.
• Score: 0.38811062755861964
• License:
• Abstract: Detecting the angles and orbits of remote targets precisely has been playing crucial roles in astrophysical research. Due to the resolution limitations imposed by the Airy disk in a single telescope, optical interferometric schemes with at least two telescopes have received considerable attention. We have extended the piecemeal method to reduce the required number of baselines for observation. Through the analysis of its performance under practical conditions, we demonstrate that both the original and extended piecemeal methods exhibit strong robustness against errors in baseline lengths and orientations. Under the same practical conditions, our approach achieves higher precision than other existing weak-light interference-based methods.

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