Development of hardware circuit for a long-wave infrared detector based on Xilinx Zynq with SOPC architecture

Jing Liang; Junsheng Shi; Huaqiang Wang; Bingyi Xiong; Ruimin Huang

doi:10.1117/12.2616492

8 July 2022 Development of hardware circuit for a long-wave infrared detector based on Xilinx Zynq with SOPC architecture

Jing Liang, Junsheng Shi, Huaqiang Wang, Bingyi Xiong, Ruimin Huang

Author Affiliations +

Proceedings Volume 12281, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology; 122810D (2022) https://doi.org/10.1117/12.2616492
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

The long wave infrared imaging systems have been used widely in military and civil fields. With the rapid development of semiconductor technology, new architectures of embedded systems are emerging and developing towards the direction of lower power consumption, higher integration and stronger performance. The traditional hardware circuit design scheme of infrared detector adopts single-FPGA solutions or discrete DSP+FPGA solutions. The above two schemes have disadvantages such as hard algorithm transplantation, hard serial processing and too complex hardware circuit. In this paper, a hardware circuit for a long-wave infrared detector based on Xilinx Zynq with SOPC architecture is developed, which includes a detector driving circuit, a detector temperature control circuit, an analog-to-digital conversion circuit, a signal processing circuit, and a digital signal output circuit. When the system is working, the signals generated by the detector are input into Xilinx Zynq after an analog-to-digital conversion operation. Then, after being cached by DDR3 chip, non-uniformity correction, dynamic compression and image enhancement are completed in Xilinx Zynq. Finally, the infrared video is transmitted to the remote PC through the network for real-time display through UDP protocol of gigabit Ethernet. The software on the PC supports functions such as screenshot, video recording and log query. Experiment as results show that a uncooled long-wave infrared detector with the resolution 640×512 are driven by the proposed scheme, which has advantages of sufficient data bandwidth, easy serial processing and simple process of memory control. The system designed by this scheme has good imaging effect and strong extensibility.

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Jing Liang, Junsheng Shi, Huaqiang Wang, Bingyi Xiong, and Ruimin Huang "Development of hardware circuit for a long-wave infrared detector based on Xilinx Zynq with SOPC architecture", Proc. SPIE 12281, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 122810D (8 July 2022); https://doi.org/10.1117/12.2616492

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KEYWORDS

Infrared detectors

Imaging systems

Signal detection

Infrared imaging

Sensors

Analog electronics

Image processing

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