A Global-Shutter Centroiding Measurement CMOS Image Sensor With Star Region SNR Improvement for Star Trackers

@article{Qian2016AGC,
  title={A Global-Shutter Centroiding Measurement CMOS Image Sensor With Star Region SNR Improvement for Star Trackers},
  author={Xinyuan Qian and Hang Yu and Shoushun Chen},
  journal={IEEE Transactions on Circuits and Systems for Video Technology},
  year={2016},
  volume={26},
  pages={1555-1562}
}
A star tracker is a critical sensor for determining and controlling the attitude of a satellite. It utilizes a complementary metal-oxide-semiconductor (CMOS)-active pixel sensor to map the star field onto the focal plane. Starlight is measured and star centroids are calculated to estimate attitude knowledge. In this paper, we present a CMOS image sensor for star centroid measurement in star trackers. To improve sensitivity to low-level starlight, the capacitive transimpedance amplifier pixel is… CONTINUE READING

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