Calculation stellardetection limit for active pixel sensor

[in Chinese]; [in Chinese]; [in Chinese]

Journals >Infrared and Laser Engineering >Volume 34 >Issue 1 >Page 66 > Article

Infrared and Laser Engineering
Vol. 34, Issue 1, 66 (2005)

Calculation stellardetection limit for active pixel sensor

[in Chinese]^{1、2、3、4、*}, [in Chinese]^{1、2、3、4}, and [in Chinese]^{1、2、3、4}

Author Affiliations

¹[in Chinese]

²[in Chinese]

³[in Chinese]

⁴430074

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DOI: Cite this Article

[in Chinese], [in Chinese], [in Chinese]. Calculation stellardetection limit for active pixel sensor[J]. Infrared and Laser Engineering, 2005, 34(1): 66 Copy Citation Text

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Abstract

The stellar detection limit(SDL) of image sensor is a key parameter of star tracker. It plays an important role in the selection of guide stars and the star pattern identification. In order to calculate the SDL of CMOS active pixel sensor (APS), the model of star influx and the noise model of APS are presented. The main noise sources of APS are analyzed. If SNR and total noise of APS are given, the SDL of APS can be calculated based on the typical response of 0 magnitude visual star per second per mm2. As an example, a specific SDL of APS is provided with given optical parameters and exposure time.

Keywords

Active pixel sensor Detection limit Stellar radiation Temporal noise

[in Chinese], [in Chinese], [in Chinese]. Calculation stellardetection limit for active pixel sensor[J]. Infrared and Laser Engineering, 2005, 34(1): 66

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