Accurate Real-time Laser Spot Locating Based on Template Correlation in Intersatellite Laser Communications
文献类型：期刊论文
| 作者 | Meng, Xiangsheng; Liu, Wen ; Han, Junfeng; Tian, Yan; Liu, Jun; Ma, Caiwen
|
| 刊名 | IEEE Photonics Journal
 |
| 出版日期 | 2023 |
| 页码 | 1-10 |
| 关键词 | Intersatellite laser communications centroiding accuracy real-time engineering applications |
| ISSN号 | 19430655 |
| DOI | 10.1109/JPHOT.2023.3335234 |
| 产权排序 | 1 |
| 英文摘要 | In intersatellite laser communications, the centroiding accuracy of a laser spot is crucial for maintaining steady communication links. However, the systematic error introduced by discrete sampling restricts further improvement of centroiding accuracy when choosing algorithms that are widely used in engineering. Additionally, the ultrahigh computational complexity and multiple-step iterations of the Gaussian fitting (GF) algorithm are unsuitable for real-time implementation, even though the algorithm can achieve the highest centroiding accuracy. In this study, we propose a laser spot centroiding algorithm based on template correlation to simultaneously satisfy the requirements of real-time performance and accuracy. The proposed algorithm evaluates the central location of a laser spot by obtaining the index of the maximum Pearson correlation coefficient (PCC). Simulations performed under different conditions reveal that the proposed algorithm is robust against the interference of background noise and the bad pixels. Moreover, experimental verification is performed based on the implementation on a Field-Programmable Gate Array (FPGA) in real-time, meanwhile its accuracy is on the same level as that of the GF algorithm and better than those of other widely-used algorithms. Therefore, the proposed algorithm is suitable for accurate real-time locating of laser spots in engineering applications of the intersatellite laser communications Authors |
| 语种 | 英语 |
| 出版者 | Institute of Electrical and Electronics Engineers Inc. |
| 源URL | [http://ir.opt.ac.cn/handle/181661/97056]  |
| 专题 | 西安光学精密机械研究所_光电测量技术实验室 |
| 作者单位 | Key Laboratory of Space Precision Measurement Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China |
| 推荐引用方式 GB/T 7714 | Meng, Xiangsheng,Liu, Wen,Han, Junfeng,et al. Accurate Real-time Laser Spot Locating Based on Template Correlation in Intersatellite Laser Communications[J]. IEEE Photonics Journal,2023:1-10. |
| APA | Meng, Xiangsheng,Liu, Wen,Han, Junfeng,Tian, Yan,Liu, Jun,&Ma, Caiwen.(2023).Accurate Real-time Laser Spot Locating Based on Template Correlation in Intersatellite Laser Communications.IEEE Photonics Journal,1-10. |
| MLA | Meng, Xiangsheng,et al."Accurate Real-time Laser Spot Locating Based on Template Correlation in Intersatellite Laser Communications".IEEE Photonics Journal (2023):1-10. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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