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浏览/检索结果: 共15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 Influence Evaluation of Sensor Coordinate Error on Microseismic Source Location 期刊论文  OAI收割 FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10 作者:  Li, Tao;  Chen, Bing-Rui;  Wang, Qing;  Zhu, Xin-Hao;  Wang, Xu   |  收藏  |  浏览/下载：13/0  |  提交时间：2023/08/02 microseismic  sensor coordinate error  monitoring area  sensor array center  threshold  comprehensive evaluation index   Improving speech enhancement by focusing on smaller values using relative loss 期刊论文  OAI收割 IET SIGNAL PROCESSING, 2020, 卷号: 14, 期号: 6, 页码: 374-384 作者:  Li, Hongfeng;  Xu, Yanyan;  Ke, Dengfeng;  Su, Kaile   |  收藏  |  浏览/下载：22/0  |  提交时间：2020/09/07 speech enhancement  speech intelligibility  performance evaluation  learning (artificial intelligence)  neural nets  absolute differences  speech quality  relative loss  single-channel speech enhancement  noisy speech  ideal ratio mask  phase-sensitive mask  mean square error  loss function  absolute error values  magnitude spectra  deep learning  clean speech recovery  short-time objective intelligibility  signal-to-distortion ratio  segmental signal-to-noise ratio  performance evaluation   Evaluative Analysis of Formulas of Heat Transfer Coefficient of Rock Fracture 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2020, 卷号: 41, 期号: 8, 页码: 20 作者:  Jiang, Yinqiang;  Yao, Huayan;  Cui, Yinxiang;  Lei, Hongwu;  He, Yuanyuan   |  收藏  |  浏览/下载：24/0  |  提交时间：2021/05/25 Condition number  Heat transfer coefficient  Numerical stability evaluation  Relative error   Quantitative Evaluations and Error Source Analysis of Fengyun-2-Based and GPM-Based Precipitation Products over Mainland China in Summer, 2018 期刊论文  OAI收割 REMOTE SENSING, 2019, 卷号: 11, 期号: 24, 页码: 21 作者:  Xu, Jintao;  Ma, Ziqiang;  Tang, Guoqiang;  Ji, Qingwen;  Min, Xiaoxiao   |  收藏  |  浏览/下载：31/0  |  提交时间：2020/05/19 precipitation  evaluation  error analysis  Fengyun  quantitative precipitation estimates  GPM  IMERG   Demonstration of horizontal free-space laser communication with the effect of the bandwidth of adaptive optics system 期刊论文  OAI收割 Optics Communications, 2019, 卷号: 431, 页码: 167-173 作者:  R.Wang;  Y.K.Wang;  C.B.Jin;  X.H.Yin;  S.X.Wang   |  收藏  |  浏览/下载：20/0  |  提交时间：2020/08/24 Free space laser communication,Adaptive optics,Horizontal turbulence,Bit error rate,performance evaluation,Optics   Trajectory evaluation for manipulators with motion and sensor uncertainties 期刊论文  OAI收割 Industrial Robot, 2017, 卷号: 44, 期号: 5, 页码: 658-670 作者:  Qi RL(祁若龙);  Wang TJ(王铁军)   |  收藏  |  浏览/下载：20/0  |  提交时间：2017/09/12 Error Distribution  Motion And Sensor Uncertainty  Trajectory Evaluation   Tracking error modeling of the theodolite based on GRNN method (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2011, December 11, 2011 - December 13, 2011, Taichung, Taiwan 作者:  Li M. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 To meet the requirement of high tracking accuracy as well as develop more reasonable evaluation method  in this paper  the General Regression Neural Network (GRNN) has been applied to build the tracking error model of the theodolite. First  we analyze the nonlinear factors in the theodolite. Second  we discuss the principle of GRNN  including its structure  the function as well as its priors. Third  we build the tracking error model based on GRNN and verify the model through the different parameters. The result indicated that the network model based on GRNN has high accuracy and good generalization ability. It could instead the real system to a certain extent. The research in this paper has important value to the engineering practice.   An exploratory analysis of spectral indices to estimate vegetation water content using sensitivity function EI期刊论文  OAI收割 2012 Wu Jianjun; Zhang Jie; Lu Aifeng; Zhou Lei 收藏  |  浏览/下载：26/0  |  提交时间：2012/11/23 Water content  Deforestation  Fuels  Function evaluation  Mean square error  Moisture control  Moisture determination  Optical properties  Optical waveguides  Vegetation   Woulda, coulda, shoulda: The evaluation and the impact of the alternative outcome 期刊论文  OAI收割 PSYCHOPHYSIOLOGY, 2011, 卷号: 48, 期号: 10, 页码: 1354-1360 作者:  Gu, Ruolei;  Wu, Tingting;  Jiang, Yang;  Luo, Yue-Jia 收藏  |  浏览/下载：18/0  |  提交时间：2015/09/08 Decision making  Outcome evaluation  Alternative outcome  Feedback-related negativity (FRN)  Logic error  Counterfactual thinking   The Research of real time auto-recognition of the moire fringe (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China Wang M.-J.; Wu Z.-G. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 Measuring the movement of raster by the method of moire fringe has the advantage of high sensitivity  high resolution and non-contacted measurement. The characteristic of moire fringe is that the image is white alternate with black  the angle of the stripes is uniform  the width of the stripes is uniform  the terminators of the stripes aren't clear. A fast method that can figure out the width and angle of the moire fringe precisely is put forward in this paper. It calculates the angle the stripes firstly. According to the principle of the minimum mean squared error (MMSE)  the closer a series of data is  the smaller the value of the MMSE will be. The method is described as follows: It takes the image's center as the origin  180 beelines pass through the origin with the same angle interval. it calculates the value of the minimum mean squared error of the 180 beelines and find out the least one among those  then the angle of the moire fringe comes out primarily. In order to improving the calculating precision of moire fringe  60 equal angles are divided in the neighborhood of the angle  then a precise angle of moire fringe is calculated according to the principle of the MMSE. After getting out the angle of the moire fringe  we begin to calculate the width of moire fringe. A line vertical with the moire fringe is drawn  and we can get the width of the moire fringe by the vertical line. In order to get over the influence of the noise  an effective area with the shape of diamond is selected in the image. The data of area is accumulated and projected according to the direction of moire fringe  and a sine curve come out. The width of moire fringe can be obtained by getting the position of the first wave crest  the position of the last wave crest and the number of wave crest. Experiments prove that the precision of the method put forward in this paper is enhanced in comparison with the traditional frequency method  the precision of width calculation achieves to 99.6% according to the evaluation indicators of width detection error. The computing speed is boosted largely compared with traditional method  and it can achieve with 15 ms  that satisfying the demand of real time. 2011 SPIE.