雷声雷达 (RSONAR):用于平流层空间局势意识 (SSA) 的双重用途恒星追踪器的数据驱动评估
Vithurshan Suthakar1, Ian Porto1, Marissa Myhre1
1Department of Earth and Space Science, York University, Toronto, ON M3J 1P3, Canada.
Sensors (Basel, Switzerland)
|January 10, 2026
概括
在平流层气球上的商用恒星追踪器可以通过检测居住空间物体 (RSO) 来增强空间局势意识 (SSA). 这种具有成本效益的方法为光学SSA研究和监测提供了一种可行的方法.
科学领域:
- 太空科学 太空科学
- 天体物理学 天体物理学
- 光学工程是指光学工程.
背景情况:
- 不断增加的轨道碎片需要先进的空间局势意识 (SSA).
- 高层层平台为地球观测和太空监视提供了独特的优势.
研究的目的:
- 通过使用平流层气球数据,评估用于SSA应用的双用途恒星追踪器 (ST).
- 评估使用商业现成 (COTS) STs用于居住空间物体 (RSO) 检测和跟踪的可行性.
主要方法:
- 使用了RSONAR平流层气球运动 (CSA-CNES STRATOS计划) 的图像.
- 使用广场单色成像仪进行后处理态度确定和RSO检测.
- 应用于Tycho-2目录的光度校准和与两行元素 (TLEs) 的共变权加权Mahalanobis相关性.
- 采用近距离过和跟踪 (PFT) 算法用于RSO和串行识别.
主要成果:
- 从超过27,000张图像中实现了子像素天文度量和稳定的图像质量 (FWHM ≈ 388 弧秒).
- 在光度校准后,证明了辐射统一性与0.37毫克RMS散射.
- 观测到的明显角速度为7x10^2到8x10^3弧秒s^-1对于阳光照亮的LEO物体.
- 通过PFT算法与TLEs达成次弧分位置协议,并使用PFT算法识别了22,036个RSO和387条条纹.
结论:
- COTS恒星追踪器适用于双重用途的SSA有效载荷.
- 高层气球飞行为光学SSA研究和开发提供了一个可行的平台.
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