Mr. Peng Rong Profile

Peng Rong

at Beijing Institute of Space Mechanics & Electricity

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Publications (2)

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Proceedings Article | 12 March 2019 Paper

A design for a full-spectrum imaging circuit

Zhi-peng Gong, Yong-ping Li, Zheng-yang Yu, Jing Huang, Peng Rong, Xin Li

Proceedings Volume 11023, 110232Z (2019) https://doi.org/10.1117/12.2521853

KEYWORDS: Analog electronics, Power supplies, Signal processing, Charge-coupled devices

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Two optical payloads on the GF-5 satellite have produced by Beijing Institute of Space Mechanics and Electricity. The full-spectrum spectral camera has the characteristics of wide spectral range, high spatial resolution and high accuracy of radiation calibration. It has reached the domestic leading and international advanced technology level, which has greatly improved China's high-precision observation capability. This paper designs a video circuit for the visible near-infrared spectrum of the camera. The circuit implements timing control and driving of the detector, as well as analog to digital conversion and processing of the analog signal. It completes the acquisition of 8 channels of analog signals, and outputs 14 bits of quantized bits and 30 Mbps of single channel data. The system achieves high signal-to-noise ratio (SNR) through high-stability power supply, high-speed drive level shifting and high-precision (2ns/step) timing control. Under the given simulation test conditions in the laboratory, the measured signal-to-noise ratio of the visible light channel reached 307, and good image data was obtained in the external scene imaging and in the space.

Proceedings Article | 5 August 2015 Paper

Realization of video electronics system in the space-borne multispectral imager

Peng Rong, Ning Lei, Ganglin Cheng, Jing Huang

Proceedings Volume 9622, 96220M (2015) https://doi.org/10.1117/12.2185535

KEYWORDS: Video processing, Signal processing, Image processing, Video, Imaging systems, Sensors, Analog electronics, Clocks, Data processing, Signal detection

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In this paper, a new multispectral imager video electronics system is introduced. The system has an imaging function of visible spectrum (VIS), near infrared spectrum (NIR), short wave infrared spectrum (SWIR), medium wave infrared spectrum (MWIR) and long wave infrared spectrum (LWIR). It is comprised of three video processors and an information processor. Three video processors are VIS-NIR processor, SWIR-MWIR processor and LWIR processor. The VIS-NIR processor uses time delay and integration charge coupled devices (TDICCD) as detector, samples and quantifies CCD signal under the mode of correlated double sampling (CDS), corrects image data by using large-scale field programmable gate array (FPGA). The application methods of SWIR-MWIR processor and LWIR processor are similar. Information processor is the most important part of the video electronics systems. It is responsible for receiving remote control command from other equipments, transmitting telemetric data, controlling the three video processors working synchronously, encoding and transmitting the image data from the video processor. Besides the introduction of system’s functions and system composition framework, detailed implementation methods of some important components will be described in this paper as well. The experimental result shows that all main technical indexes meet the design requirement.

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