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浏览/检索结果: 共13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 Effect of random phase error and baseline roll angle error on eddy identification by interferometric imaging altimeter CNKI期刊论文  OAI收割 2022 作者:  Le GAO;  Hanwei SUN;  Jifeng QI;  Qiufu JIANG   |  收藏  |  浏览/下载：7/0  |  提交时间：2024/12/18 interferometric altimetry  baseline error  random error  ocean eddy  theoretical and systematic simulation  error removal strategy   Mitochondrial genes from 18 angiosperms fill sampling gaps for phylogenomic inferences of the early diversification of flowering plants 期刊论文  OAI收割 JOURNAL OF SYSTEMATICS AND EVOLUTION, 2022, 卷号: 60, 期号: 4, 页码: 773-788 作者:  Xue, Jia-Yu;  Dong, Shan-Shan;  Wang, Ming-Qiang;  Song, Tian-Qiang;  Zhou, Guang-Can   |  收藏  |  浏览/下载：14/0  |  提交时间：2024/03/07 early angiosperm radiation  incongruence  mitochondrial genome  phylogenomics  systematic error   Effect of random phase error and baseline roll angle error on eddy identification by interferometric imaging altimeter 期刊论文  OAI收割 JOURNAL OF OCEANOLOGY AND LIMNOLOGY, 2021, 页码: 8 作者:  Gao, Le;  Sun, Hanwei;  Qi, Jifeng;  Jiang, Qiufu   |  收藏  |  浏览/下载：36/0  |  提交时间：2021/05/26 interferometric altimetry  baseline error  random error  ocean eddy  theoretical and systematic simulation  error removal strategy   Applications of differential barometric altimeter in ground cellular communication positioning network 期刊论文  OAI收割 IET SCIENCE MEASUREMENT & TECHNOLOGY, 2020, 卷号: 14, 期号: 3, 页码: 322-331 作者:  Hu, Zhengqun;  Zhang, Lirong;  Ji, Yuanfa   |  收藏  |  浏览/下载：22/0  |  提交时间：2021/12/06 cellular radio  height measurement  measurement errors  Global Positioning System  altimeters  barometers  least squares approximations  Kalman filters  surface fitting  spread spectrum communication  compensation  matrix algebra  GPS  signal message structure  power spectrum  spread spectrum ranging signal  fitting parameters  least-square solution  calibration compensation  system noise variance matrix  measurement noise variance matrix  multibase station correction  height information correction calculation  DBA system  systematic performance  differential barometric altimeter  ground cellular communication positioning network  measurement datum distribution  altitude positioning error  Global Positioning System  differential barometric altimetry system  systematic implementation level  continuous altitude measurement  precise altitude measurement  DBA systematic implementation aspect  two dimensional curved surface fitting function  sensor measurement correction  filtering effect  Kalman filter  measuring station  multiBSs  navigation fusion   Diversification of Rosaceae since the Late Cretaceous based on plastid phylogenomics 期刊论文  OAI收割 NEW PHYTOLOGIST, 2017, 卷号: 214, 期号: 3, 页码: 1355-1367 作者:  Zhang, Shu-Dong;  Jin, Jian-Jun;  Chen, Si-Yun;  Chase, Mark W.;  Soltis, Douglas E.   |  收藏  |  浏览/下载：29/0  |  提交时间：2017/07/10 Diversification  Phylogenomics  Plastome  Rapid Radiation  Rosaceae  Systematic Error   Combined estimation for multi-measurements of branching ratio 期刊论文  OAI收割 CHINESE PHYSICS C, 2015, 卷号: 39, 期号: 10, 页码: 103001 作者:  Xiao-Xia;  L.;  L. Xiao-Rui;  Zhu YS(朱永生);  Yong-Sheng 收藏  |  浏览/下载：32/0  |  提交时间：2016/04/18 branching ratio  combined estimation  likelihood function  Bayesian method  systematic error   Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment 期刊论文  OAI收割 ACTA OCEANOLOGICA SINICA, 2014, 卷号: 33, 期号: 1, 页码: 127-134 Xie, Q; Huang, K; Wang, DX; Yang, L; Chen, J; Wu, ZW; Li, DN; Liang, ZY 收藏  |  浏览/下载：42/0  |  提交时间：2014/12/11 global positioning system radiosonde  temperature and relative humidity profile  systematic bias  random error  tropical ocean   Intercomparison of GPS radiosonde soundings during the eastern tropical Indian Ocean experiment 期刊论文  OAI收割 ACTA OCEANOLOGICA SINICA, 2014, 卷号: 33, 期号: 1, 页码: 127-134 作者:  Chen Ju;  Xie Qiang;  Huang Ke;  Wang Dongxiao;  Yang Lei   |  收藏  |  浏览/下载：32/0  |  提交时间：2015/12/02 Global Positioning System Radiosonde  Temperature And Relative Humidity Profile  Systematic Bias  Random Error  Tropical Ocean   The research on distortion measurement and compensation technology in photoelectricity measurement system (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 Hong F.; Mujun X.; Zhiqian W. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 The distortion made by optical lens largely affect the measurement accuracy of the large field of view photoelectricity measurement system  according to the theory of aberration in the photoelectricity system  this paper design a series of distortion measurement devices  in connection with the process of distortion correction in photoelectricity system  establish the related mathmatics model  make the real time distortion correction by the method of software compensation. The experimental results demonstrate the method decrease the measurement error made by the photoelectricity system distortion  after the compensation  in tatal field of view  the systematic measurement error is less than 0.5 picture element. 2010 IEEE.   Study on bandwidth mutual-benefit between the azimuth and pitch in an optoelectronic tracking system (EI CONFERENCE) 会议论文  OAI收割 MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China 作者:  Guo J.;  Guo J.;  Chen J. 收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25 Two-axis optoelectronic tracking equipments generally use such mode that azimuth and pitch system are independently controlled. It leads to the two structures completely uncoupled  therefore  and reduces the state space dimension. But the main problem is that the rotational inertia of azimuth is much larger than that of pitch  it is an effective control mode to the two-axis photoelectric tracking equipments.  which leads its dynamic tracking performance is worse. So to find a more suitable mechanics and more effective control strategy is necessary. Considering the tracking ability  this paper designs BMC (bandwidth mutual compensation) to uniformly correct the error of both the azimuth and pitch system in real time  it is realized by cross coupling control to the azimuth and pitch. The simulation result verified that compared with classical uncoupling system BMS not only guarantees the state space dimension but improves systematic tracking performance about 2