Research on real-time NUC method of infrared TDI detector based on bi-directional scanning-imaging mechanism

Feng Ma; Guoping Yin; Shuai Tang

doi:10.1117/12.2511876

7 November 2018 Research on real-time NUC method of infrared TDI detector based on bi-directional scanning-imaging mechanism

Feng Ma, Guoping Yin, Shuai Tang

Author Affiliations +

Proceedings Volume 10832, Fifth Conference on Frontiers in Optical Imaging Technology and Applications; 108321S (2018) https://doi.org/10.1117/12.2511876
Event: Fifth Conference on Frontiers in Optical Imaging Technology and Applications, 2018, Changchun, China

Abstract

This article proposes a real-time calibrating(non-uniformity correction) method for the bi-directional scanning infrared TDI imaging load on the aerospace platform. The method is completed through efficient cooperation of a scanning mechanism, a real-time calibration device, and an image preprocessing device, by employing the scanning blanking period for bi-directional calibration. The image preprocessing device uses high-performance FPGA as the core processor, which can perform flexible working sequence control of the detector, accurate detection of calibration synchronization signal, fast acquisition of calibration data and efficient pipelining data processing. Moreover, by using the Micro Blaze IP core, the preprocessing device can calculate the calibration coefficients of two-point correction in real time and also fulfill communication with the host computer. Proven by practice, the calibration method of the bi-directional infrared TDI detector described in this paper has high practical value with the advantages of high processing speed, significant effect, and high system integration.

Citation Download Citation

Feng Ma, Guoping Yin, and Shuai Tang "Research on real-time NUC method of infrared TDI detector based on bi-directional scanning-imaging mechanism", Proc. SPIE 10832, Fifth Conference on Frontiers in Optical Imaging Technology and Applications, 108321S (7 November 2018); https://doi.org/10.1117/12.2511876

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