Mr. Shaolin Chen Profile

Shaolin Chen

at Kunming Institute of Physics

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Proceedings Article | 12 March 2021 Paper

A high speed high stable data receiving method for digital infrared FPAs

Jiqing Zhang, Shaolin Chen, Wenbiao Mao, Nan Chen, Libin Yao

Proceedings Volume 11763, 117639J (2021) https://doi.org/10.1117/12.2587805

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In a digital infrared focal plane array (IRFPA) thermal imager, imaging circuit has requirements of receiving serial data from digital FPA correctly and stably. Conventional data receiving method has disadvantages of low speed, low stability and poor adaptability, which results from clock synchronization difficulty at high data rate and unfixed serial link delay. A novel data receiving method basing on deserializer and sequence detection is proposed. Benefiting from the deserializer, high speed sampling can be implemented, and clock synchronization difficulty is lowered down. With sequence detection, not only the beginning of data packet but also the best sampling point can be correctly determined, even though an uncertain serial link delay exists. The proposed method has been implemented in FPGA achieving a single channel data receiving rate up to 550Mbps. Shaking table testing is completed which fully verifies the high stability and good adaptability of the proposed method.

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