机构

• 金属研究所 [2]
• 国家空间科学中心 [1]
• 长春光学精密机械与物... [1]
• 数学与系统科学研究院 [1]
• 过程工程研究所 [1]

采集方式

• OAI收割 [6]

内容类型

• 期刊论文 [5]
• 会议论文 [1]

发表日期

• 2022 [1]
• 2014 [1]
• 2013 [3]
• 2008 [1]

学科主题

• 空间技术 [1]

筛选

浏览/检索结果: 共6条，第1-6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 Euler-Lagrange simulation of dense gas-solid flow with local grid refinement 期刊论文  OAI收割 POWDER TECHNOLOGY, 2022, 卷号: 399, 页码: 18 作者:  Zhao, Peng;  Xu, Ji;  Chang, Qi;  Ge, Wei;  Wang, Junwu   |  收藏  |  浏览/下载：16/0  |  提交时间：2023/02/24 Discrete particle simulation  Kernel function  Information mapping  Fluidization  Multiphase flow  Grid refinement   Applications of the representative points in statistical simulations 期刊论文  OAI收割 SCIENCE CHINA-MATHEMATICS, 2014, 卷号: 57, 期号: 12, 页码: 2609-2620 作者:  Fang KaiTai;  Zhou Min;  Wang WenJun   |  收藏  |  浏览/下载：13/0  |  提交时间：2021/01/14 DENSITY-FUNCTION  bootstrap  kernel density estimation  normal distribution  representative points  resampling  statistical simulation   A Simulation Kernel for Lunar and Planetary System 期刊论文  OAI收割 Advances in Information Sciences and Sevice Sciences, 2013, 卷号: 5, 期号: 10, 页码: 431-438 Yuzhu Zhang; Xin Meng; Zhongshi Pan; Zhen Yang 收藏  |  浏览/下载：31/0  |  提交时间：2014/04/30 Simulation Kernel  Lunar and Planetary Rover  Rapid Assembly   A second-order numerical method for elliptic equations with singular sources using local filter 期刊论文  OAI收割 CHINESE JOURNAL OF AERONAUTICS, 2013, 卷号: 26, 期号: 6, 页码: 1398-1408 作者:  Jiang Yongsong;  Fang Le;  Jing Xiaodong;  Sun Xiaofeng;  Francis Leboeuf   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/02/02 IMMERSED INTERFACE METHOD  SMOOTHED PARTICLE HYDRODYNAMICS  BOUNDARY METHOD  DISCONTINUOUS COEFFICIENTS  GLOBAL DESCRIPTION  FLOW  ORDER  SIMULATION  ACCURACY  Computational aerodynamics  Immersed boundary method  Immersed interface method  Kernel filter  Singular source   A second-order numerical method for elliptic equations with singular sources using local filter 期刊论文  OAI收割 CHINESE JOURNAL OF AERONAUTICS, 2013, 卷号: 26, 期号: 6, 页码: 1398-1408 作者:  Jiang Yongsong;  Fang Le;  Jing Xiaodong;  Sun Xiaofeng;  Francis Leboeuf   |  收藏  |  浏览/下载：15/0  |  提交时间：2021/02/02 IMMERSED INTERFACE METHOD  SMOOTHED PARTICLE HYDRODYNAMICS  BOUNDARY METHOD  DISCONTINUOUS COEFFICIENTS  GLOBAL DESCRIPTION  FLOW  ORDER  SIMULATION  ACCURACY  Computational aerodynamics  Immersed boundary method  Immersed interface method  Kernel filter  Singular source   A high-accuracy parameter estimation algorithm for jointless Frequency-shift track circuit (EI CONFERENCE) 会议论文  OAI收割 ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China 作者:  Zheng X. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 FSK (Frequency Shift keying) signal  which has advantages of narrow-bandwidth  strong anti-interference ability  long transmission distance and so on  is used in jointless Frequency-shift track circuit to send different kinds of control signals. However  as FSK is non-linearly modulated  parameter estimation with high accuracy is hard to realize. Based on the spectrum analysis complement with time-frequency distribution  a highaccuracy FSK signal parameter estimation algorithm is put forward in this paper. According to the signal characteristics  under-sampling and ZFFT are used to improve the accuracy of spectrum analysis  and the base frequency resolution meets system requirement of 0.02Hz. Wigner-Ville distribution has an excellent time-frequency concentration while serious cross-term interference at the same time. Through the design of kernel function  the cross-terms are almost suppressed and the upper/down side frequency resolution meets the system requirement of 0.2Hz. The effectivities of all the methods mentioned above have been proved by MATLAB simulation  which pave a solid way for the development of high-accuracy FSK signal parameter estimation devices. 2008 IEEE.