An Approach to Star Map Simulation for Star Sensor  Considering the Effect of Image Motion

Li, Aijun; Chao-shan, Liu; Shen, Xiao-fang

doi:10.4236/opj.2013.32b027

Cited by 2 publications

(2 citation statements)

References 2 publications

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3 over 6500 min. A more complete discussion for the simulation to continuously acquire the synthetic data of the star projection can be found in [19].…”

Section: A Simulation and Resultsmentioning

confidence: 99%

Angular velocity estimation from measurement vectors of star tracker

Liu

Yang

et al. 2012

Appl. Opt.

View full text Add to dashboard Cite

In most spacecraft, there is a need to know the craft's angular rate. Approaches with least squares and an adaptive Kalman filter are proposed for estimating the angular rate directly from the star tracker measurements. In these approaches, only knowledge of the vector measurements and sampling interval is required. The designed adaptive Kalman filter can filter out noise without information of the dynamic model and inertia dyadic. To verify the proposed estimation approaches, simulations based on the orbit data of the challenging minisatellite payload (CHAMP) satellite and experimental tests with night-sky observation are performed. Both the simulations and experimental testing results have demonstrated that the proposed approach performs well in terms of accuracy, robustness, and performance.

show abstract

“…3 over 6500 min. A more complete discussion for the simulation to continuously acquire the synthetic data of the star projection can be found in [19].…”

Section: A Simulation and Resultsmentioning

confidence: 99%

Angular velocity estimation from measurement vectors of star tracker

Liu

Yang

et al. 2012

Appl. Opt.

View full text Add to dashboard Cite

show abstract

“…And the proposed method in [8] and [9] can calculate the space-debris energy on the image plane. (4) The stars position on the CMOS image plane can be calculated by using the approach mentioned in [10], while the space-debris position is computed by the aid of coordinate transform theory and SKT software. (5) The Matlab2014 is used as implementing software, and the experiments are conducted on the PC with Intel i5 core and 4G memory.Finally, the simulating experiment results are shown from Figure 6 to Figure 7 which contains streak, star background and image noise.…”

Section: Methodsmentioning

confidence: 99%

An Approach to Space-Debris Optical Image Simulation Considering the Streak and Saturated Star-Background

Ouyang¹,

Xu²,

Huang³

et al. 2018

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Abstract. In present, space-object optical image simulation study is very important to the area of space technology, because it can support the development of space-object detection algorithm before the optical platforms are launched to the space and supplement the information of unusual cases which is absent in the real optical images. Although there're many simulation methods focus on different space-object and space-surveillance platforms, this paper mainly proposed an optical image simulation approach focus on the small field-ofview and high detection sensitivity spatial imaging system for detecting space-debris. The proposed simulation method focuses on two key features streak and saturated star-background in the space-debris optical images which caused by high angular speed of space-debris and bright star respectively. Firstly, for the purpose of simulating the saturated star-background, this paper introduces an accurate star radiation calculating model by using bolometric magnitude to replace common visual magnitude. Secondly, in order to simulate the streak, an energy accumulation based linear approximation method is proposed which is more sufficient than the original gauss distribution model when simulate the streak caused by fast moving space-debris. Finally, the experiment results show the efficiency of proposed method.

show abstract

An Approach to Star Map Simulation for Star Sensor Considering the Effect of Image Motion

Cited by 2 publications

References 2 publications

Angular velocity estimation from measurement vectors of star tracker

Angular velocity estimation from measurement vectors of star tracker

An Approach to Space-Debris Optical Image Simulation Considering the Streak and Saturated Star-Background

Contact Info

Product

Resources

About