| 内容提要: |
Star trackers have been widely studied in the three past decades due to their high accuracies as well as, their capabilities in attitude determination as per 3 main axis in the real time. Star identification(star-ID) algorithms are of the most effective software parts in the devices of aid navigation in the performance of star trackers. In this research presents a star-ID algorithm which has four stars in the field of view (FOV). Having these stars, it finds the parameters of separating angles, areas and polar moment between the formed triangles and compares them with the information stored in the memory of star tracker to achieve the unique response. In this research, the triangular patterns have been prevented from being formed between all stars of research catalogue for reducing the volume of the data stored in the memory. Therefore, only the triangles created between the central star and its near three stars are formed and stored. |