人造卫星观测中重叠像的分离

Separating the Blended Images in Space Object Observation

在人造卫星观测中,由于观测目标相对背景恒星的运动,观测目标成点状像而背景恒星的像则被拉长.该现象极易造成观测目标与背景恒星发生重叠.从而给卫星跟踪观测或是进行同步目标探测造成困难.本文利用图像处理的方法对重叠的目标像和恒星像进行分离,取得了较为理想的效果.

Because of the relative movement between space objects and back- ground stars,the images of space objects are shown as points and those of the back- ground stars are elongated at the same time in the observation of space objects.The blending of objects with stars is ineluctable thereby.This influence brings difficulties to the data reduction of tracking observation of satellite and the detection of GEO space debris.In this paper,a technique based on the convolution of gauss functions is applied to remove this blending.Results of the reduction of real data show that the technique is effective.