Feb. 2018

Article Contents

Chinese Optics> 2018> 11(1): 115-122.

LIU Ming, DENG Jun, FENG Xian-fei, QIAN Feng-song. Design of highly sensitive space point target detection system[J]. Chinese Optics, 2018, 11(1): 115-122. doi: 10.3788/CO.20181101.0115

Citation:

LIU Ming, DENG Jun, FENG Xian-fei, QIAN Feng-song. Design of highly sensitive space point target detection system[J].Chinese Optics, 2018, 11(1): 115-122.doi:10.3788/CO.20181101.0115

LIU Ming, DENG Jun, FENG Xian-fei, QIAN Feng-song. Design of highly sensitive space point target detection system[J]. Chinese Optics, 2018, 11(1): 115-122. doi: 10.3788/CO.20181101.0115

Citation:

LIU Ming, DENG Jun, FENG Xian-fei, QIAN Feng-song. Design of highly sensitive space point target detection system[J].Chinese Optics, 2018, 11(1): 115-122.doi:10.3788/CO.20181101.0115

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Design of highly sensitive space point target detection system

doi:10.3788/CO.20181101.0115

Key Laboratory of Opto-electronics Technology of the Education Ministry, Department of information, Beijing University of Technology, Beijing 100124, China

Funds:

2017 Innovation Service Capacity Construction-Research Base Construction-Opto-electronics Technology of the Education MinistryPXM2017_014204_500034

More Information

Corresponding author:DENG Jun, E-mail:dengsu@bjut.edu.cn
Received Date:11 Sep 2017
Rev Recd Date:06 Nov 2017
Publish Date:01 Feb 2018

Abstract

Abstract

In this paper, a space point target detection system is designed based on highly sensitive CMOS sensor. Firstly, noise reduction of CMOS sensor image is carried out to improve the sensitivity of the detection sensor; secondly, by using DSP+FPGA embedded architecture, a point target detection algorithm based on star map matching is designed and the principle and steps of the algorithm are introduced in detail. Finally, the electronic star map simulator is used to test the detection system. The results show that the embedded system can process 1 024×1 024@20p format videos in real-time, and the sixth-magnitude stars can be detected. When the SNR is greater than 6 and the pointing error is less than 1°, targets which with different speed and size can be detected with a detection accuracy of nearly 100%. In summary, the space point target detection method has high computational precision, strong adaptability and high reliability, and can be effectively applied to the space point target detection.
- CMOS sensor,
- point target detection,
- star map matching,
- embedded system

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References (16)

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