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Application of channel multiplexing technology in LED underwater visible light communication 信道复用技术在LED水下可见光通信中的应用
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0508002
PENG Jiachi, GUO Jianzhong, LI Yanlong, ZHANG Liang, ZHOU Ying, AI Yong, LIANG Hexi
以发光二极管(LED)为发射端的水下可见光通信(UVLC)系统因器件带宽所限其传输速率较低，且受水质环境影响较大，致使通信综合性能不佳。为提高信道容量与通信质量，将信道复用技术应用在LED-UVLC系统中，以现场可编程门阵列(FPGA)为数据处理核心，搭建LED蓝绿光发射阵列以及雪崩光电二极管(APD)接收阵列，设计出了一个4×4的多信道UVLC系统。我们将系统置于长20 m的水下环境中，以26.7 Mbit/s的通信速率，完成了误码率(BER)约为10−7的双向传输。实验数据表明，当传输不同大小的数据文件时，对比传统的单输入单输出水下可见光通信(SISO-UVLC)系统，节省了约4倍的通信时间，且与仿真的信道容量增益一致。另外，在水质和通信距离相同的条件下，本系统能获得更优的BER性能。
以发光二极管(LED)为发射端的水下可见光通信(UVLC)系统因器件带宽所限其传输速率较低，且受水质环境影响较大，致使通信综合性能不佳。为提高信道容量与通信质量，将信道复用技术应用在LED-UVLC系统中，以现场可编程门阵列(FPGA)为数据处理核心，搭建LED蓝绿光发射阵列以及雪崩光电二极管(APD)接收阵列，设计出了一个4×4的多信道UVLC系统。我们将系统置于长20 m的水下环境中，以26.7 Mbit/s的通信速率，完成了误码率(BER)约为10−7的双向传输。实验数据表明，当传输不同大小的数据文件时，对比传统的单输入单输出水下可见光通信(SISO-UVLC)系统，节省了约4倍的通信时间，且与仿真的信道容量增益一致。另外，在水质和通信距离相同的条件下，本系统能获得更优的BER性能。
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引用次数: 0
Multi-scale oriented object detection based on improved RoI Transformer in remote sensing images 基于改进RoI Transformer的遥感图像多尺度目标检测
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0502001
LIU Minhao, WANG Kun, JIN Ruijiao, LU Tian, LI Zhang
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引用次数: 0
Optimization design of thermal condition of Rowland circle spectrometer based on optical, thermal and structural simulations 基于光学、热学和结构模拟的罗兰圆光谱仪热工况优化设计
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0101006
Lu Yi, Ren Wanjie, Guo Guojian, You Xinran, HU Guoxing, Wu Lijun, Sun Xun
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引用次数: 0
Intelligent trace color separation method based on multi-band light source 基于多波段光源的智能痕量分色方法
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0101007
Gao Yi, Yu Ying, Yang Xu, Xiang Shuangxi
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引用次数: 0
Application of PSO-ASVR in quantitative calibration of three-wavelength pavement state sensor PSO-ASVR在三波长路面状态传感器定量标定中的应用
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0103005
Yang Sen, Tian Yuhui, Zhang Houqing
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引用次数: 0
Extreme luminance measurement method based on high dynamic range imaging 基于高动态范围成像的极端亮度测量方法
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0103008
Qin Yan, Liu Ruixing, Kang Zhen, L. Hongguang, Gong Jingzhu, Sun Yu-nan, Zhao Juncheng
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引用次数: 0
Influence of cavity ring-down data interception on time constant measurement accuracy 空腔衰荡数据拦截对时间常数测量精度的影响
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0103006
Zhang Jinyu, Jin Shangzhong, Zhang Biao, Wu Lei, Yu Bing, Yuan Liang, Li Gaoping
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引用次数: 0
Monte Carlo method for solving underwater light field 求解水下光场的蒙特卡罗方法
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0201005
HE Dahua, Cheng Pu, Li Yangyang
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引用次数: 0
Method for cross-age face recognition based on identity-age sharing features 基于身份-年龄共享特征的跨年龄人脸识别方法
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0302004
Zhang Zikang, Yin Songfeng, Cao Liangcai, Liu Cheng
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引用次数: 0
Hyperspectral camouflage effect evaluation based on spectral indices 基于光谱指标的高光谱伪装效果评价
Q4 Physics and Astronomy
Journal of Applied Optics
Pub Date : 2023-01-01 DOI: 10.5768/jao202344.0301008
Ouyang Yaxiong, Peng Ruihui, Sha Jianjun, Zhang Lin, Zhang Kaiyi
{"title":"Hyperspectral camouflage effect evaluation based on spectral indices","authors":"Ouyang Yaxiong, Peng Ruihui, Sha Jianjun, Zhang Lin, Zhang Kaiyi","doi":"10.5768/jao202344.0301008","DOIUrl":"https://doi.org/10.5768/jao202344.0301008","url":null,"abstract":"","PeriodicalId":38331,"journal":{"name":"Journal of Applied Optics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71260221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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