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20 December 2019 Design of low noise processing technology based on digital domain
Da-lei Yao, Jian-ru Xue, Fan Bu, Qing Zhu, Hong-wei Yi, Wei-cheng Cao
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Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112091I (2019) https://doi.org/10.1117/12.2547337
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China
Abstract
In order to break through the bottleneck of traditional CCD camera in suppressing noise, this paper designs a new system of digital domain correlation double sampling. The CCD video signal is digitized by a high-speed, high-resolution A/D converter at a sampling frequency much higher than the readout rate, and then an optimal digital signal processing algorithm is designed for the characteristics of the CCD signal readout noise to suppress noise. Experiments show that the system can suppress the readout noise at 8.1 e- at 500K read rate, which can reduce the output noise of CCD more effectively.
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Da-lei Yao, Jian-ru Xue, Fan Bu, Qing Zhu, Hong-wei Yi, and Wei-cheng Cao "Design of low noise processing technology based on digital domain", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112091I (20 December 2019); https://doi.org/10.1117/12.2547337
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KEYWORDS
Charge-coupled devices
Digital signal processing
Interference (communication)
Signal processing
CCD cameras
Cameras
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