摘要
提出了一种新的用于星敏感器的多星关联性分析算法 ,此算法经过复杂的分析 ,比较 ,可以确定出图象中有用星点的外接矩形 ,从而为下一步的矩心计算做好准备。与传统关联性算法相比 ,这种算法只需要对图象做一次扫描 ,从而大大节约了计算时间 ,在文章最后 ,我们给出了在实际应用中 ,通过数字信号处理器 ( DSP)用此算法与传统算法处理同一幅星图所需要的时间 。
A new method of connectivity analysis for star tracker is presented. Performing complex work of recognition, this method can determine the containing rectangle of star in the image. To compare with the conventional method, it only needs one single scan to do the image so this new method can save a lot of time. We have treated and analyzed the same star image with these two different methods(old and new) by DSP, and from their spent time we can confidently learn the advantage of the new method.
出处
《电子器件》
CAS
2004年第4期568-570,617,共4页
Chinese Journal of Electron Devices
基金
航天部星惯导航星敏感器项目
关键词
关联性
星敏感器
星图
connectivity
star sensor
image of star
