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Generation and coherent detection of QPSK signal using a novel method of digital signal processing
Zhao, Yuan1,2; Hu, Bingliang1; He, Zhen-An1,2; Xie, Wenjia3; Gao, Xiaohui1
作者部门光谱成像技术实验室
2018-02-10
发表期刊MODERN PHYSICS LETTERS B
ISSN0217-9849
卷号32期号:4
产权排序1
摘要We demonstrate an optical quadrature phase-shift keying (QPSK) signal transmitter and an optical receiver for demodulating optical QPSK signal with homodyne detection and digital signal processing (DSP). DSP on the homodyne detection scheme is employed without locking the phase of the local oscillator (LO). In this paper, we present an extracting one-dimensional array of down-sampling method for reducing unwanted samples of constellation diagram measurement. Such a novel scheme embodies the following major advantages over the other conventional optical QPSK signal detection methods. First, this homodyne detection scheme does not need strict requirement on LO in comparison with linear optical sampling, such as having a flat spectral density and phase over the spectral support of the source under test. Second, the LabVIEW software is directly used for recovering the QPSK signal constellation without employing complex DSP circuit. Third, this scheme is applicable to multilevel modulation formats such as M-ary PSK and quadrature amplitude modulation (QAM) or higher speed signals by making minor changes.
关键词Optical Coherence Quadrature Phase-shift Keying Digital Signal Processing
DOI10.1142/S0217984918501038
收录类别SCI
语种英语
WOS记录号WOS:000424876900014
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/30769
专题光谱成像技术研究室
作者单位1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Key Lab Spectral Imaging Technol, Xian 710119, Shaanxi, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Xian Commun Inst, Xian 710106, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Yuan,Hu, Bingliang,He, Zhen-An,et al. Generation and coherent detection of QPSK signal using a novel method of digital signal processing[J]. MODERN PHYSICS LETTERS B,2018,32(4).
APA Zhao, Yuan,Hu, Bingliang,He, Zhen-An,Xie, Wenjia,&Gao, Xiaohui.(2018).Generation and coherent detection of QPSK signal using a novel method of digital signal processing.MODERN PHYSICS LETTERS B,32(4).
MLA Zhao, Yuan,et al."Generation and coherent detection of QPSK signal using a novel method of digital signal processing".MODERN PHYSICS LETTERS B 32.4(2018).
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