To get high-precision attitude of the spacecrafts in high dynamic maneuver, a double-FOV(field of view) star sensor is
proposed. It is composed of two lenses and two image sensors. The star images of the smaller FOV are used to estimate
the attitude of the spacecraft for high-precision, and those of the larger FOV are used to speed the star identification
process. Moreover, when the smaller FOV can not capture enough stars, the stars in the larger FOV can be used to
estimate the attitude of the spacecraft, which enhances the robustness of the star sensor. The simulation results show that
the star sensor can provide high-accuracy attitudes while the spacecraft is in high dynamic maneuver stage.
Star sensors and computer vision systems are generally used for spacecraft navigation in deep space, both of which make
use of image sensors. To mitigate the payload of the spacecraft, a new star sensor prototype with extending use as a
rendezvous and docking positioning system is described in this paper. An adaptive processing element is used to control
the process of image acquiring, image pre-processing and image recognition, which makes the sharing of the image
sensor feasible. The software is discussed about how to realize the two applications. The earth based experiments verify
the feasibility and validity of the design, which may make a little contribution on the deep space explorations.