Digital coherent detection research on Brillouin optical time domain reflectometry with simplex pulse codes

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 空间激光信息技术研究中心

	Digital coherent detection research on Brillouin optical time domain reflectometry with simplex pulse codes
	Hao Yun-Qi ; Ye Qing ; Pan Zheng-Qing ; Cai Hai-Wen ; Qu Rong-Hui
刊名	chin. phys. b
	2014
卷号	23 期号:11 页码:110703
关键词	Brillouin optical time domain reflectometry digital coherent detection simplex pulse codes signal-to-noise ratio
通讯作者	hao, yq (reprint author), zhengzhou univ light ind, coll phys & elect engn, zhengzhou 450002, peoples r china.
英文摘要	the digital coherent detection technique has been investigated without any frequency-scanning device in the brillouin optical time domain reflectometry (botdr), where the simplex pulse codes are applied in the sensing system. the time domain signal of every code sequence is collected by the data acquisition card (daq). a shift-averaging technique is applied in the frequency domain for the reason that the local oscillator (lo) in the coherent detection is fix-frequency deviated from the primary source. with the 31-bit simplex code, the signal-to-noise ratio (snr) has 3.5-db enhancement with the same single pulse traces, accordant with the theoretical analysis. the frequency fluctuation for simplex codes is 14.01 mhz less than that for a single pulse as to 4-m spatial resolution. the results are believed to be beneficial for the botdr performance improvement.
收录类别	SCI
语种	英语
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/13073]
专题	上海光学精密机械研究所_空间激光信息技术研究中心
作者单位	1.[Hao Yun-Qi] Zhengzhou Univ Light Ind, Coll Phys & Elect Engn, Zhengzhou 450002, Peoples R China 2.[Ye Qing 3.Pan Zheng-Qing 4.Cai Hai-Wen 5.Qu Rong-Hui] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai Key Lab All Solid State Laser & Appl Tec, Shanghai 201800, Peoples R China 6.[Cai Hai-Wen] Shanghai Synet Opt Technol Corp, Shanghai 201203, Peoples R China
推荐引用方式 GB/T 7714	Hao Yun-Qi,Ye Qing,Pan Zheng-Qing,et al. Digital coherent detection research on Brillouin optical time domain reflectometry with simplex pulse codes[J]. chin. phys. b,2014,23(11):110703.
APA	Hao Yun-Qi,Ye Qing,Pan Zheng-Qing,Cai Hai-Wen,&Qu Rong-Hui.(2014).Digital coherent detection research on Brillouin optical time domain reflectometry with simplex pulse codes.chin. phys. b,23(11),110703.
MLA	Hao Yun-Qi,et al."Digital coherent detection research on Brillouin optical time domain reflectometry with simplex pulse codes".chin. phys. b 23.11(2014):110703.