Theoretical study on measuring underwater temperature based on coherent Rayleigh scattering

doi:10.7498/aps.63.083302

	Theoretical study on measuring underwater temperature based on coherent Rayleigh scattering
	Ren Xiu-Yun 1; Tian Zhao-Shuo 1; Yang Min 2; Sun Lan-Jun 1; Shi-You, Fu 1
刊名	ACTA PHYSICA SINICA
	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).