论文标题
轨道碎片监测的合成跟踪成像的辐射灵敏度和分辨率
Radiometric sensitivity and resolution of synthetic tracking imaging for orbital debris monitoring
论文作者
论文摘要
我们考虑对太阳照明空间碎片的采样和检测策略。我们认为，通过分析相位空间像素而不是单个帧数据，可以通过10-100x降低可检测到的碎屑横截面。相位像素是对应于非常宽的摄像机视野（FOV）中测试碎片轨迹的像素的加权堆叠。为了将碎屑信号与背景隔离，设置了曝光时间，以匹配通过瞬时视场过境的碎片所需的时间。通过数据立方体的广义霍夫变换检测到碎屑特征。线积分的辐射分析表明，低地球轨道中的子CM对象可以通过这种方法检测并分配完整的轨道参数
We consider sampling and detection strategies for solar illuminated space debris. We argue that the lowest detectable debris cross section may be reduced by 10-100x by analysis of phase-space-pixels rather than single frame data. The phase-space-pixel is a weighted stacking of pixels corresponding to a test debris trajectory within the very wide camera field-of-view (FOV). To isolate debris signals from background, exposure time is set to match the time it takes a debris to transit through the instantaneous field of view. Debris signatures are detected though a generalized Hough transform of the data cube. Radiometric analysis of line integrals shows that that sub-cm objects in Low Earth Orbit can be detected and assigned full orbital parameters by this approach
