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浏览/检索结果: 共18条，第1-10条 帮助

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An Experimental Study on Constant Current Load Test of Reinforced Concrete based on 3D Paraffin Isolation 期刊论文  OAI收割
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2023, 卷号: 38, 期号: 2, 页码: 353
作者:  Shang, Minggang;  Xue, Cuizhen;  Zhang, Yunsheng;  He, Zhongmao;  Qiao, Hongxia
  |  收藏  |  浏览/下载：11/0  |  提交时间：2023/08/02
A Radiation Accumulation Based Detection Algorithm for Rectilinear-Motion Infrared Dim Target with Constant Acceleration 会议论文  OAI收割
1st International Conference on Multimedia and Image Processing, ICMIP 2016, Bandar Seri Begawan, Brunei, June 1-3, 2016
作者:  Ma TL(马天磊);  Shi ZL(史泽林);  Xu BS(徐保树);  Yin J(尹健);  Liu YP(刘云鹏)
收藏  |  浏览/下载：32/0  |  提交时间：2016/11/06
On the effect of the degeneracy among dark energy parameters 期刊论文  OAI收割
EUROPEAN PHYSICAL JOURNAL C, 2014, 卷号: 74, 期号: 1, 页码: 2729
Gong, YG; Gao, Q
收藏  |  浏览/下载：30/0  |  提交时间：2014/04/25
The Transient Acceleration from Time-Dependent Interacting Dark Energy Models 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2014, 卷号: 53, 期号: 2, 页码: 469-481
Chen, XM; Gong, YG; Saridakis, EN
收藏  |  浏览/下载：24/0  |  提交时间：2014/04/25
The tension on the cosmological parameters from different observational data 期刊论文  OAI收割
CLASSICAL AND QUANTUM GRAVITY, 2014, 卷号: 31, 期号: 10, 页码: 105007
作者:  Gao, Q;  Gong, YG
收藏  |  浏览/下载：38/0  |  提交时间：2015/06/03
Cosmological models with Lagrange multiplier field 期刊论文  OAI收割
PHYSICS LETTERS B, 2011, 卷号: 702, 期号: 41308, 页码: 107-113
Gao, CJ; Gong, Y; Wang, X; Chen, XL
收藏  |  浏览/下载：24/0  |  提交时间：2013/05/17
Figure of merit and different combinations of observational data sets 期刊论文  OAI收割
PHYSICAL REVIEW D, 2011, 卷号: 84, 期号: 10, 页码: 103519
作者:  Cai, RG
收藏  |  浏览/下载：21/0  |  提交时间：2013/05/17
SOME REMARKS ON DARK ENERGY MODELS 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2011, 卷号: 20, 期号: 8, 页码: 1313-1325
作者:  Cai, RG
收藏  |  浏览/下载：17/0  |  提交时间：2013/05/17
Analyse the angular velocity estimation errors of -- filter based on high sampling rate (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者:  Zhang Y.
收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25
In order to get angular velocity of stabilization servo mechanism from angular position sensors  -- filter based on high sampling rate was established  model and error characteristics were analyzed. With the hypothesis of constant acceleration  -- filter and its angular velocity transfer function were deduced. Combing with optimum parameters  the effects of and sample rate on the error characteristics were evaluated. According to the requirements of stabilization servo mechanism  the frequency characteristics of angular velocity transfer function are analyzed  and the filter parameters are designed. The experimental which filter tracked and smoothed sinusoidal signal  the results show that when the cutoff frequency of angular velocity loop is 44.9rad/s  sampling period and parameters are 0.08ms and 0.01279 respectively  the phase leading of angular position is 70. -- filter tracked sinusoidal signals with maximum angular velocity(30/s) and maximum angular acceleration(30/s2)  the error of angular velocity estimation was 0.053/s. In the engineering of electro-optical stabilization servo mechanism  -- filter can reduce noise effectively  and reached the requirement of platform angular velocity estimation. Also it is one of the effective methods to get angular velocity from angular position sensors. 2011 IEEE.  
The angular velocity estimation principal of -- filter based on high sampling rate (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者:  Zhang Y.
收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25
In order to get angular velocity of stabilization servo mechanism from angular position sensors  -- filter and its angular velocity transfer function were predigested. Combing with optimum parameters  -- filter based on high sampling rate was established  the effect of and sample rate on filter nature frequency were evaluated. According to the requirements of stabilization platform  the principle of steady and transient tracking filter differential were proved. With the hypothesis of constant acceleration  the frequency characteristics of angular velocity transfer function were analyzed  three-dimensional Kalman filter was simplified  and the filter parameters were designed. The results show that when the spectrum of input signal was lower than 6rad/s  parameters was 0.02  and sampling period were 0.08ms and 0.1ms respectively  the filter can realize differential exactly  when the spectrum was 9rad/s  the precision was no less than 1.1%  the phase leading of angular position was no less than 70  the natural frequency should be higher than the cut-off frequency of stabilization platform was two or three times. In the engineering of electro-optical stabilization servo mechanism  -- filter has properties of tracking differential  and reached the requirement of platform angular velocity estimation. Also it is one of the effective methods to get angular velocity from angular position sensors. 2011 IEEE.