Contents
2022
Volume: 39 Issue 3
20 Article(s)

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[in Chinese]
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 1 (2022)
Design of Czerny-Turner spectrometer with wide band
Shiwen LI, Xiaobing ZHENG, and Wenchao ZHAI
In order to meet the requirements of wide-band hyperspectral Czerny-Turner spectrometer, based on the aberration theory, on the one hand, the astigmatism generated by the grating is used to compensate the astigmatism of the spherical mirror, and on the other hand, the opposite astigmatism is introduced through cylindri
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 293 (2022)
Application of wavelet threshold denoising in processing of divertor spectral signal
Zhitao ZHANG, Fang DING, Yu LUO, Xiahua CHEN, Dawei YE, Zhenhua HU, and Guangnan LUO
Plasma emission spectroscopy is one of the important diagnostic methods to study the physics of plasma within tokamak. There are complex atomic and molecular physical processes in the boundary plasma, and some weak particle spectrum signals are mixed witha lot of noise. Therefore, whether the noise can be effectively r
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 307 (2022)
Molecular structure and dissociation characteristics of cesium bromide in external electric field
Huan AN, Mei XIANG, Abulimiti Bumaliya, Xingchen WANG, and Jingyan ZHENG
The ground state structure, bond length, total energy, dipole moment, charge distribution, energy gap, infrared spectrum and potential energy surface of cesium bromide(CsBr) molecule under the action of external electric field(-0.015-0.035 a.u.) are studied by using Semi-empirical/PM6 method. The results show that the
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 316 (2022)
Design of off-axis four-mirror reflective optical system for visible and infrared dual-band
Yiqing CAO, and Zhijuan SHEN
Reflective optical system has the characteristics of no chromatism, compact structure, small size, excellent imaging performance and so on, which makes it very popular in space remote sensing detection field. Firstly, based on the aberration expressions of coaxial four-mirror reflective optical system, the evaluation o
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 324 (2022)
Comparison of propagation properties of flat-top beams in different systems
Qichang JIANG, Cun ZHANG, Yanli SU, Yue SUN, and Ziwei MA
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 334 (2022)
Small target detection algorithm of drones based on improved Faster R-CNN
Yang ZHANG, Zhengdong CHENG, and Bin ZHU
In order to improve the detection and recognition effect of the two-stage target detection algorithm Faster R-CNN on small target of drones, an improved Faster R-CNN target detection algorithm is proposed. In the improved algorithm, firstly, the feature extraction network of the original Faster R-CNN algorithm is impro
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 354 (2022)
Multi-target real-time tracking system based on 3D-MobileNetv2
Renxiang MAO, Jianhua CHANG, Shuyi ZHANG, Hongxu LI, and Luyao ZHANG
In order to overcome the inaccurate tracking problem of Kalman filter in the case of long distance and occlusion, a multi-target real-time tracking framework is designed. In the framework, neural network is used to predict the state of the target object in three-dimensional space, Hungarian algorithm is used for data a
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 364 (2022)
Nonequilibrium spin transport properties of three site one-dimensional chain system with electronic interactions and their analytic formulas
Yangdong ZHENG, and Hua GAO
In order to understand and deal with the basic theoretical problems of the electron spin transport in mesoscopic systems, nonequilibrium spin transport properties of typical three site one-dimensional(1D) quantum chain system with electronic interactions are analyzed and the corresponding analytic formulas are deduced.
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 373 (2022)
Continuous-variable QKD data reconciliation protocol based on concatenated Polar coding and multistage decoding
Xiaodong ZHOU, Sheng WANG, Tianbing ZHANG, Zongfu HU, Bao FENG, and Hong XIAO
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 411 (2022)
Preparation of broadband entangled source based on microring resonator
Xiaofan TANG
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 418 (2022)
Realization method of PSK quantum-noise randomized cipher system
Yeteng TAN, Tao PU, Jilin ZHENG, Hua ZHOU, and Guorui SU
Quantum-noise randomized cipher(QNRC) is a kind of physical-layer encryption technology based on Heisenberg uncertainty principle, which can be applied to high-speed, large capacity and long-haul optical fiber communication network. In order to solve theproblem that the modulation and demodulation of M-ary Y-00 ciphert
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 423 (2022)
Complex variable Hermite-Gaussian spatial solitons of different orders in strong nonlocal media
Xinghua WANG, Rongquan CHEN, and Qing WANG
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 459 (2022)
Performance analysis of underwater wireless optical communication system based on improved Gardner algorithm of OQPSK modulation
Yi YANG, Wen LIU, Yafang YIN, Fengtao HE, and Jianlei ZHANG
Considering the attenuation characteristics of the seawater channel in underwater wireless optical communication(UWOC) and the influence of system self-noise on the modulation performance, an improved Gardner timing synchronization algorithm is proposed,and an UWOC system model is established based on offset quadrature
Chinese Journal of Quantum Electronics
  • Publication Date: Jan. 01, 1900
  • Vol. 39, Issue 3, 467 (2022)