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您的检索式：作者名="Dianjun GONG"
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| 1 | RVFL-Based Optical Fiber Intrusion Signal Recognition With Multi-Level Wavelet Decomposition as Feature显示文摘光纤维警告前系统(OFPS ) 逐渐地为监视的管道安全被看作了重要工具之一。侵入信号类型正确地被识别它能减少解决和管道的维护的费用。大多数在 OFPS 的以前的特征抽取方法通常从时间领域的看法被寻找。在一些情况中,然而,在时间领域没有区分的特征。在第一,侵入信号跑展示的纸,挖,并且精选鹤嘴锄被多水平小浪分解在频率领域提取,也就是说,侵入信号被分解成五个乐队。第二,不同频率乐队的平均精力比率被获得,它被看作每种侵入类型的特征。最后,特征样品被送到随机的向量功能连接(RVFL ) 为训练完成信号的分类和鉴定联网。试验性的结果证明算法罐头正确地区分不同侵入信号并且完成更高的识别率。 | Yanping WANG Dianjun GONG Liping PANG Dan YANG | 2018 | Photonic Sensors2018，8，3： | 11 |
| 2 | Cavity fundamental mode and beam interaction in CEPC main ring显示文摘Background CEPC is a 100-kilometer-long electron-position collider,aiming to produce Higgs,W and Z-pole.Double ring(DR)is the baseline design of its main ring,and advanced partial double ring(APDR)is the alternative one.Purpose The purpose of this paper is to study the beam loading effects and the corresponding longitudinal beam dynamics of CEPC DR and APDR.Methods The phase shift of the bunches modulated by the bunch gap is calculated with the approximation formulas and simulated with the program.All these methods are compared,and the application conditions of them are also elaborated.In addition,the longitudinal coupled-bunch instability in CEPC main ring is calculated by analytical formulas.Results In CEPC DR high-lumi Z,the phase shift can be reduced to 0.51 deg(°).Besides,the total number of unstable longitudinal modes is 15 in CEPC DR high-lumi Z when no feedback system is added.Conclusion The phase shift of the bunches in CEPC can be reduced to an acceptable value if the optimal filling pattern is chosen.For CEPC APDR,the RF parameters are calculated and the beam loading effects are tolerable. | Dianjun Gong Jie Gao Jiyuan Zhai Dou Wang | 2018 | Radiation Detection Technology and Methods2018，2，1： | 0 |
| 3 | Beam-induced HOM power in CEPC collider ring cavity显示文摘Background The power loss of cavity high-order modes(HOMs)is a key issue in Circular Electron and Positron Collider(CEPC)RF system design.A large HOM power may cause a quench of SC cavity.Purpose The purpose of this article is to study the beam-induced HOM power for CEPC collider ring.The factors influencing the cavity HOM power are also investigated.Methods Starting with the beam filling patterns,the beam spectrums of different beam time structures are deduced.Then,the longitudinal impedance is simulated for CEPC 2-cell 650 MHz cavity.Finally,the cavity HOM power is calculated for CEPC CDR design.Results The cavity HOM power is 459 W for Higgs,506 W for W and 1026 W for Z-pole.These values are smaller than the average values.There is no overlap between beam spectral lines and cavity HOM frequency.Conclusion The filling patterns of CEPC CDR Higgs,W and Z are safe.The dangerous filling patterns can be identified for CEPC Z-pole by scanning different parameters. | Dianjun Gong Jie Gao Hongjuan Zheng Jiyuan Zhai Peng Sha | 2019 | Radiation Detection Technology and Methods2019，3，3： | 0 |
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