Generation and coherent detection of QPSK signal using a novel method of digital signal processing

doi:10.1142/S0217984918501038

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 光学影像学习与分析中心

	Generation and coherent detection of QPSK signal using a novel method of digital signal processing
	Zhao, Yuan 1,2; Hu, Bingliang1 ; He, Zhen-An 1,2; Xie, Wenjia 3; Gao, Xiaohui1
刊名	MODERN PHYSICS LETTERS B
	2018-02-10
卷号	32 期号:4
关键词	Optical Coherence Quadrature Phase-shift Keying Digital Signal Processing
ISSN号	0217-9849
DOI	10.1142/S0217984918501038
产权排序	1
英文摘要	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.
语种	英语
WOS记录号	WOS:000424876900014
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/30769]
专题	西安光学精密机械研究所_光学影像学习与分析中心
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).