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浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 The Optical Measuring System of Universal Time: Digital Zenith Tube 期刊论文  OAI收割 Journal of Physics: Conference Series, 2021, 卷号: 1739, 期号: 1 作者:  Cai,Hongbing;  Xu,Jingsong;  Chen,Shaojie   |  收藏  |  浏览/下载：27/0  |  提交时间：2021/11/29 Universal Time  UT1  Digital Zenith Tube  VLBI   北斗PPP高精度时间比对技术研究 期刊论文  OAI收割 时间频率学报, 2020, 卷号: 43, 期号: 4, 页码: 262 作者:  张继海;  董绍武;  袁海波;  广伟;  宋会杰   |  收藏  |  浏览/下载：42/0  |  提交时间：2021/11/29 BeiDou navigation satellite system  high precision time transfer and comparison  precision point positioning (PPP)  coordinated universal time  北斗卫星导航系统  高精度时间传递与比对  精密单点定位  协调世界时   GPS多接收机加权组合共视时间比对 期刊论文  OAI收割 时间频率学报, 2020, 卷号: 43, 期号: 3, 页码: 175 作者:  张健;  董绍武;  武文俊;  王威雄;  郭栋   |  收藏  |  浏览/下载：17/0  |  提交时间：2021/11/29 time comparison  coordinated universal time  multiple receiver combination  multiple receiver system  时间比对  协调世界时  多接收机组合  多接收机系统   Universal Approximation Capability of Broad Learning System and Its Structural Variations 期刊论文  OAI收割 IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, 2019, 卷号: 30, 期号: 4, 页码: 1191-1204 作者:  Chen, C. L. Philip;  Liu, Zhulin;  Feng, Shuang   |  收藏  |  浏览/下载：55/0  |  提交时间：2019/12/16 Broad learning system (BLS)  deep learning  face recognition  functional link neural networks (FLNNs)  non-linear function approximation  time-variant big data modeling  universal approximation   用于测量世界时的大型光纤陀螺仪的噪声分析 期刊论文  OAI收割 天文学报, 2019, 卷号: 60, 期号: 6 作者:  王惜康;  高玉平;  孙中苗   |  收藏  |  浏览/下载：40/0  |  提交时间：2020/11/09 fiber optic gyroscope  universal time  noise figure  Allan variance  power spectral density  光纤陀螺仪  世界时  噪声系数  阿伦方差  功率谱密度   Application of Grey Model GM(1, 1) to Ultra Short-Term Predictions of Universal Time 期刊论文  OAI收割 artificial satellites, 2016, 卷号: 51, 期号: 1, 页码: 19-29 作者:  Lei, Yu;  Guo, Min;  Zhao, Danning;  Cai, Hongbing;  Hu, Dandan 收藏  |  浏览/下载：22/0  |  提交时间：2016/03/21 Universal Time (UT1-UTC)  Prediction  Grey Model   Embedded system of time uniform based on DSP (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者:  Li N.;  Liu C.-X.;  Liu C.-X.;  Chen J.;  Guo L.-H. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 We introduced a design method of DSP-based System of time uniform  which combine the GPS and the Compass to calibrate the time. The system can use UTC (Coordinated Universal Time) of the GPS or the Compass for time base  to generate absolute time and different frequency of synchronous signals. We used DSP (Digital Signal Processor) to calculate the satellite information which includes the UTC time. After getting the UCT time information  put it into the CPLD (Complex Programmable Logic Device) for correction of time delay and serialization to output. Meanwhile  we divided 1PPS (one-pulse-per-second) signal of the GPS and the Compass into 20Hz  50Hz  and 800Hz synchronous signal. And we analyzed the precision of time and frequency. To conclude  the uncertainty of system absolute time is less than 100ns  the uncertainty of system synchronous signals is less than 20ns. This system is easy and flexible for use  stable and reliable in performance. 2010 IEEE.   Continuous monitoring of restriction endonuclease cleavage activity by universal molecular beacon light quenching coupled with real-time polymerase chain reaction 期刊论文  OAI收割 ANALYTICAL BIOCHEMISTRY, 2008, 卷号: 381, 期号: 1, 页码: 1-7 作者:  Li, Xiaomin;  Song, Chen;  Zhao, Meiping;  Li, Yuanzong   |  收藏  |  浏览/下载：18/0  |  提交时间：2019/04/09 Universal Molecular Beacon  Real-time Polymerase Chain Reaction  Restriction Endonucleases   Continuous monitoring of restriction endonuclease cleavage activity by universal molecular beacon light quenching coupled with real-time polymerase chain reaction 期刊论文  OAI收割 analytical biochemistry, 2008, 卷号: 381, 期号: 1, 页码: 1-7 作者:  Li, Xiaomin;  Song, Chen;  Zhao, Meiping;  Li, Yuanzong 收藏  |  浏览/下载：33/0  |  提交时间：2015/11/11 universal molecular beacon  real-time polymerase chain reaction  restriction endonucleases   Newton-hooke limit of beltrami-de sitter spacetime, principle of galilei-hooke's relativity and postulate on newton-hooke universal time 期刊论文  iSwitch采集 International journal of modern physics a, 2007, 卷号: 22, 期号: 14-15, 页码: 2535-2562 作者:  Huang, Chao-Guang;  Guo, Han-Ying;  Tian, Yu;  Xu, Zhan;  Zhou, Bin 收藏  |  浏览/下载：38/0  |  提交时间：2019/04/23 Newton-hooke space-time  Galilei hooke's relativity principle  Universal time postulate  Contraction  Beltrami-de sitter spacetime