[HTML][HTML] Design and validation of a U-Net-based algorithm for star sensor image segmentation
M Mastrofini, I Agostinelli, F Curti - Applied Sciences, 2023 - mdpi.com
The present work focuses on the investigation of an artificial intelligence (AI) algorithm for
brightest objects segmentation in night sky images' field of view (FOV). This task is …
brightest objects segmentation in night sky images' field of view (FOV). This task is …
Space object detection in video satellite images using motion information
X Zhang, J Xiang, Y Zhang - International Journal of Aerospace …, 2017 - Wiley Online Library
Compared to ground‐based observation, space‐based observation is an effective approach
to catalog and monitor increasing space objects. In this paper, space object detection in a …
to catalog and monitor increasing space objects. In this paper, space object detection in a …
Centroid extraction algorithm based on grey-gradient for autonomous star sensor
Y He, H Wang, L Feng, S You, J Lu, W Jiang - Optik, 2019 - Elsevier
The noise and complicated working environment experienced by the star sensor during
spacecraft applications both have negative effects on the star image quality, which …
spacecraft applications both have negative effects on the star image quality, which …
A novel star image thresholding method for effective segmentation and centroid statistics
W Xu, Q Li, H Feng, Z Xu, Y Chen - Optik, 2013 - Elsevier
The centroid method is a common procedure for sub-pixel location used in many optical
measurement devices and the centroid is very often calculated over thresholded data. In …
measurement devices and the centroid is very often calculated over thresholded data. In …
Novel approach for laboratory calibration of star tracker
H Liu, X Li, J Tan, J Yang, J Yang, D Su… - Optical …, 2010 - spiedigitallibrary.org
An autonomous star tracker is an opto-electronic instrument used to provide the absolute
three-axis attitude of a spacecraft utilizing star observations. The precise calibration of the …
three-axis attitude of a spacecraft utilizing star observations. The precise calibration of the …
[HTML][HTML] 星敏感器星图的高精度星点提取方法
何贻洋， 王宏力， 冯磊， 由四海， 许强 - 哈尔滨工业大学学报, 2019 - hit.alljournals.cn
星敏感器硬件电路产生的噪声以及在航天器上应用所面临的复杂恶劣的工作环境,
都对星图质量造成严重影响, 进而降低星点提取精度. 针对上述问题, 提出了一种精度高且抗干扰 …
都对星图质量造成严重影响, 进而降低星点提取精度. 针对上述问题, 提出了一种精度高且抗干扰 …
高精度姿态测量技术静态检验方法
唐君， 王安国， 张磊 - 交通运输工程学报, 2011 - transport.chd.edu.cn
在观测时间和观测地点确定, 姿态测量系统保持基准姿态情况下, 可预先计算出某颗星体在系统
视场中的运功轨迹和时间信息. 以此为依据, 调整设备基座, 使星体的实际运动轨迹和计算轨迹 …
视场中的运功轨迹和时间信息. 以此为依据, 调整设备基座, 使星体的实际运动轨迹和计算轨迹 …
[PDF][PDF] 一种基于聚类的深空红外多目标快速检测算法
叶有时， 唐林波， 赵保军 - 电子与信息学报, 2011 - edit.jeit.ac.cn
该文提出一种基于行扫描点线目标聚类合并的快速实时多目标检测算法. 该方法首先对原始图像
进行自适应阈值分割, 然后采用外接矩补形, 点线目标提取和聚类合并对二值图像单帧目标进行 …
进行自适应阈值分割, 然后采用外接矩补形, 点线目标提取和聚类合并对二值图像单帧目标进行 …
甚高精度星模拟器星图显示与控制系统研究
孙高飞， 张国玉， 王凌云， 高玉军， 王向东 - 空间科学学报, 2013 - cjss.ac.cn
为对甚高精度星敏感器进行地面标定和精度测试, 提出甚高精度星模拟器的研制,
其模拟精度应优于0.5". 在甚高精度星模拟器设计中, 对星模拟器的星图显示与控制系统进行了 …
其模拟精度应优于0.5". 在甚高精度星模拟器设计中, 对星模拟器的星图显示与控制系统进行了 …
基于LCOS 拼接技术的动态星模拟器设计
刘石， 张国玉， 孙高飞， 王凌云 - 空间科学学报, 2013 - cjss.ac.cn
提出了以LCOS 为核心器件的动态星模拟器设计方案, 采用光学拼接方法实现了高精度的使用
要求, 计算出星模拟器光学系统的焦距, 单星张角等光学参数, 详细介绍了两片LCOS …
要求, 计算出星模拟器光学系统的焦距, 单星张角等光学参数, 详细介绍了两片LCOS …