摘要
CCD星敏感器的关键问题是星图识别。从字符串的模式匹配来考虑这个问题,先把星图通过高通滤波器,然后用0-1的方法建立导航星库,再采用KMP算法来进行星图识别。仿真结果表明该算法每区域的识别时间才0.2486ms,并且克服了在许多星等相近的亮星或星对角距很小的视域内识别率严重降低的缺点。该算法有很好的鲁棒性。
The key in star map recognition is CCD star sensor. Taking account of this importance from the match mode of string, first passing star map through high-pass filter, then a nautical star database established with 0 and 1 method, star map recognition is carried out by KMP algorithm. Simulation results show that the identification time of the algorithm for each area is only 0.2486 ms. The faults are overcame that the discrimination is seriously lowered among many bright stars or within a visual domain of very small diagonal distance. The algorithm has a good robustness.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2004年第1期9-11,共3页
Opto-Electronic Engineering
