Theoretical study on measuring underwater temperature based on coherent Rayleigh scattering | |
Ren Xiu-Yun1; Tian Zhao-Shuo1; Yang Min2; Sun Lan-Jun1; Shi-You, Fu1 | |
刊名 | ACTA PHYSICA SINICA
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2014-04 | |
卷号 | 63期号:8 |
关键词 | underwater temperature Rayleigh scattering coherent detection |
ISSN号 | 1000-3290 |
DOI | 10.7498/aps.63.083302 |
英文摘要 | The rapid measuring of the underwater temperature on a large scale is very important for marine monitoring, and it has vital significances in the civilian and military fields. In this paper, a new coherent Rayleigh scattering method to measure underwater temperature is presented. A wide-band photodetector is used to receive the heterodyne signal combined by the local oscillator laser and water Rayleigh backscattering light, and the water Rayleigh scattering spectrum can be acquired by transform analysis, then the water temperature can be obtained. Firstly, theoretical study and simulation are made on the basic principles of measuring underwater temperature based on Rayleigh scattering. Secondly, theoretical analysis and simulation are made on how to measure water Rayleigh scattering spectrum using coherent detection. Finally, the water temperature measurement accuracy based on Rayleigh scattering is analyzed, showing that for 1 MHz measurement accuracy of Rayleigh scattering spectrum half-width, about 0.35 K temperature measurement accuracy can be achieved. |
资助项目 | National Natural Science Foundation of China[41306092] |
WOS关键词 | STIMULATED BRILLOUIN-SCATTERING ; WATER TEMPERATURE ; AMPLIFICATION ; FILTER ; OCEAN |
WOS研究方向 | Physics |
语种 | 中文 |
出版者 | CHINESE PHYSICAL SOC |
WOS记录号 | WOS:000336090200014 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn:8080/handle/2SI8HI0U/25130] ![]() |
专题 | 自然资源部第一海洋研究所 |
通讯作者 | Shi-You, Fu |
作者单位 | 1.Harbin Inst Technol Weihai, Informat Optoelect Res Inst, Weihai 264209, Peoples R China 2.State Ocean Adm, North China Sea Marine Tech Support Ctr, Qingdao 266033, Peoples R China |
推荐引用方式 GB/T 7714 | Ren Xiu-Yun,Tian Zhao-Shuo,Yang Min,et al. Theoretical study on measuring underwater temperature based on coherent Rayleigh scattering[J]. ACTA PHYSICA SINICA,2014,63(8). |
APA | Ren Xiu-Yun,Tian Zhao-Shuo,Yang Min,Sun Lan-Jun,&Shi-You, Fu.(2014).Theoretical study on measuring underwater temperature based on coherent Rayleigh scattering.ACTA PHYSICA SINICA,63(8). |
MLA | Ren Xiu-Yun,et al."Theoretical study on measuring underwater temperature based on coherent Rayleigh scattering".ACTA PHYSICA SINICA 63.8(2014). |
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