Design of signal processing system for airship-borne multi-spectral infrared camera

Hua Wang; QiangMin He; QingSheng Yu; XinChuan You; GuiMei Cheng; Long Xiao

doi:10.1117/12.3007586

18 December 2023 Design of signal processing system for airship-borne multi-spectral infrared camera

Hua Wang, QiangMin He, QingSheng Yu, XinChuan You, GuiMei Cheng, Long Xiao

Proceedings Volume 12960, AOPC 2023: Infrared Devices and Infrared Technology; and Terahertz Technology and Applications; 129600F (2023) https://doi.org/10.1117/12.3007586
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

According to the application requirements of airship-borne photoelectric payload, a low-noise miniaturized signal processing system for airship-borne multi-spectral infrared camera is designed and implemented. The system includes medium wave signal processing circuit, long wave signal processing circuit and integrated control circuit. High integrated design technology is adopted in medium wave signal processing circuit and long wave signal processing circuit to achieve high-precision bias voltage generation, low-noise analog signal conditioning, detector focal plane temperature monitoring, detector timing generation, image processing, data transmission. The size of each signal processing circuit is only 84mm×50mm×20mm. The integrated control circuit realizes the image data framing and encoding based on ARINC818 standard of the Avionics Digital Video Bus in FPGA, and sends the encoded high-speed digital video to the airship platform through optical fiber, which realizes the highly reliable and lightweight data transmission. After the introduction of the key technologies of each circuit, the experimental verification of the signal processing system for airship-borne multi-spectral infrared camera is carried out. The experimental results show that the design scheme of the signal processing system is reasonable and feasible. While realizing the miniaturization design, the system noise is lower than 0.3mV and the data transmission rate is up to 2.125Gbps, which meets the requirements of camera system.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hua Wang, QiangMin He, QingSheng Yu, XinChuan You, GuiMei Cheng, and Long Xiao "Design of signal processing system for airship-borne multi-spectral infrared camera", Proc. SPIE 12960, AOPC 2023: Infrared Devices and Infrared Technology; and Terahertz Technology and Applications, 129600F (18 December 2023); https://doi.org/10.1117/12.3007586

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