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浏览/检索结果: 共21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 A novel random generation method of two-dimensional particles based on the complex Fourier series 期刊论文  OAI收割 POWDER TECHNOLOGY, 2022, 卷号: 400, 期号: -, 页码: - 作者:  Zhou, Haoran;  Meng, Qingshan;  Qin, Qinglong;  Wu, Kai;  Dong, Youkou   |  收藏  |  浏览/下载：9/0  |  提交时间：2023/08/02 Complex Fourier series  Particle shape  Inverse fast Fourier transform  Particle random generation  Discrete element method   Identifying Emotions from Non-Contact Gaits Information Based on Microsoft Kinects 期刊论文  OAI收割 IEEE TRANSACTIONS ON AFFECTIVE COMPUTING, 2018, 卷号: 9, 期号: 4, 页码: 585-591 作者:  Li, Baobin;  Zhu, Changye;  Li, Shun;  Zhu, Tingshao   |  收藏  |  浏览/下载：49/0  |  提交时间：2019/01/13 Emotion  gait  joints  Microsoft Kinect  time-frequency analysis  discrete fourier transform   Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast CNKI期刊论文  OAI收割 2018 作者:  Song JJ(宋骏杰);  Zhao B(赵博);  Liu JH(刘金虎);  Cao L(曹亮);  Dou SZ(窦硕增)   |  收藏  |  浏览/下载：2/0  |  提交时间：2024/12/18 otolith  stock discrimination  discrete wavelet transform  elliptic Fourier transform  morphometrics  Larimichthys polyactis   Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast 期刊论文  OAI收割 JOURNAL OF OCEANOLOGY AND LIMNOLOGY, 2018, 卷号: 36, 期号: 5, 页码: 1870-1879 作者:  Song Junjie;  Zhao Bo;  Liu Jinhu;  Cao Liang;  Dou Shuozeng   |  收藏  |  浏览/下载：67/0  |  提交时间：2019/05/15 otolith  stock discrimination  discrete wavelet transfonn  elliptic Fourier transform  morphometrics  Laritnichthys polyactis   Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast 期刊论文  OAI收割 JOURNAL OF OCEANOLOGY AND LIMNOLOGY, 2018, 卷号: 36, 期号: 5, 页码: 1870-1879 作者:  Song Junjie;  Zhao Bo;  Liu Jinhu;  Cao Liang;  Dou Shuozeng   |  收藏  |  浏览/下载：107/0  |  提交时间：2019/07/15 otolith  stock discrimination  discrete wavelet transfonn  elliptic Fourier transform  morphometrics  Laritnichthys polyactis   Design of the tip state estimator for hybrid-structured flexible manipulator based on SDFT and FLAKF 期刊论文  OAI收割 Assembly Automation, 2018, 卷号: 38, 期号: 5, 页码: 576-586 作者:  Long, Teng;  Li, En;  Fan, Junfeng;  Yang, Lei;  Liang, Zize   |  收藏  |  浏览/下载：30/0  |  提交时间：2019/04/27 Fuzzy Logic Adaptive Kalman Filter (Flakf)  Hybrid-structured Flexible Manipulator (Hsfm)  Sliding Discrete Fourier Transform (Sdft)  Tip State Estimator   High-Accuracy Amplitude and Phase Measurements for Low-Level RF Systems 期刊论文  OAI收割 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2012, 卷号: 61, 期号: 4, 页码: 912-921 作者:  Wang, Z;  Mao, LH;  刘熔; Liu, R 收藏  |  浏览/下载：22/0  |  提交时间：2016/04/08 Amplitude measurement  discrete Fourier transform (DFT)  digital IF  high accuracy  low-level RF (LLRF)  oversampling  phase measurement  RF control   Simulation and experiment of the static FTIR based on micro multi-step mirrors (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China 作者:  Liang Z.-Z.;  Zhang J.;  Zhang J.;  Zhang J.;  Zhu W.-B. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 In recent years  Fourier transform spectrometer (FTS) with small size and low mass is required in many applications with growing need for real-time and small platform spectral detection. In this paper  a micro Fourier transform infrared spectrometer (FTIR) based on spatial modulation mode was designed. This spectrometer has the advantages of high stability and simplified configuration. It also promises optical path differences (OPD) with high precision  as MOEMS technology is used in manufacturing the key components. The simulation and the experiments with regard to this FTIR configuration have been done. Firstly  the diffraction effect of the micro multi-step mirrors (MMSMs) is studied. We discuss the influence to the reversed spectrum by different mirror widths and different diffraction distances. Secondly  we simulate and analyze the influence of the source solid angle to the spectral resolution. Thirdly  we set up the theoretical model of the collimation error which is mainly from the defocus of the optical system and analyze the result caused by the collimation error. Fourthly  a new discrete Fourier transform arithmetic using least-squares cosines progression (LSCP) is proposed which can reconstruct the spectrum with nonuniform sampled signals. Finally  the MMSMs are fabricated used the MOEMS technology and the structural parameters are tested. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).   DFT Feature Analysis of Corn Varieties Based on Near Infrared Spectra 期刊论文  OAI收割 spectroscopy and spectral analysis, 2011, 卷号: 31, 期号: 1, 页码: 119-122 Li YP; Li WJ; Lai JL 收藏  |  浏览/下载：63/1  |  提交时间：2011/07/06 Near infrared spectra (NIRS)  Corn seed  Discrete fourier Transform (DFT)  Difference degree  Character analyse  SPECTROSCOPY  CALIBRATION  MODEL   Dft feature analysis of corn varieties based on near infrared spectra 期刊论文  iSwitch采集 Spectroscopy and spectral analysis, 2011, 卷号: 31, 期号: 1, 页码: 119-122 作者:  Li Yang-peng;  Li Wei-jun;  Lai Jiang-liang 收藏  |  浏览/下载：35/0  |  提交时间：2019/05/12 Near infrared spectra (nirs)  Corn seed  Discrete fourier transform (dft)  Difference degree  Character analyse