搜索结果: 1-11 共查到“工学 pursuit”相关记录11条 . 查询时间(0.062 秒)
MULTI-SPECTRAL IMAGE ANALYSIS BASED ON DYNAMICAL EVOLUTIONARY PROJECTION PURSUIT
multi-spectral image projection pursuit dynamical evolutionary algorithm
2015/8/10
Principal component analysis (PCA) is usually used for compressing information in multivariate data sets by computing orthogonal projections that maximize the amount of data variance. PCA is effective...
In Pursuit of Grid Convergence for Two-Dimensional Euler Solutions
Grid Convergence Two-Dimensional Euler Solutions
2015/7/3
Grid-convergence trends of two-dimensional Euler solutions are investigated. The airfoil geometry under study is based on the NACA0012 equation. However, unlike the NACA0012 airfoil, which has a blunt...
Detecting Highly Oscillatory Signals by Chirplet Path Pursuit
Signal Detection Nonparametric Testing Likelihood Ratios Adaptivity Chirps Chirplets Time-Frequency Analysis Gravitational Waves Graphs Shortest Path in a Graph Dynamic Programming
2015/6/17
This paper considers the problem of detecting nonstationary phenomena, and chirps in particular, from very noisy data. Chirps are waveforms of the very general form A(t) exp(iλ ϕ(t)), where λ is ...
In this paper, we study the problem of recovering a low-rank matrix (the principal components) from a highdimensional data matrix despite both small entry-wise noise and gross sparse errors. Recently,...
Low-Income Mothers and Their Pursuit of Food in a Rural Massachusetts County: A Qualitative Study from a Feminist Point of View
food security feminism planning grounded theory low-income mothers
2014/11/11
This study reintroduces the disciplines of feminism and planning with the hope that planners will incorporate aspects of feminist theory, which has historically been overlooked by traditional western ...
Sustainability expert leads pursuit for improved social responsibility in global mining sector（图）
global mining social responsibility
2014/7/17
International expert Dr Saleem Ali has been appointed the Director of the Centre for Social Responsibility in Mining (CSRM), at The University of Queensland (UQ).
Ultrasonic Nondestructive Signals Processing Based on Matching Pursuit with Gabor Dictionary
ultrasonic signal processing sparse representation matching pursuit
2011/8/4
The success of ultrasonic nondestructive testing technology depends not only on the generation and measurement of the desired waveform, but also on the signal processing of the measured waves.
Ultrasonic Nondestructive Signals Processing Based on Matching Pursuit with Gabor Dictionary
ultrasonic signal processing sparse representation matching pursuit
2011/8/4
The success of ultrasonic nondestructive testing technology depends not only on the generation and measurement of the desired waveform, but also on the signal processing of the measured waves.
投影寻踪分类模型在作物补偿效应评价中的应用（Comprehensive Evaluation on Compensatory Effects of Water Recovery after Drought Based on Projection Pursuit Classification Model）
水分胁迫 补偿效应 投影寻踪分类
2010/1/28
为了解决作物旱后复水补偿效应评价和优选的不确定性，提高补偿效应评价模型的分辨率，提出了投影寻踪分类模型，并采用变异和动态信息素更新蚁群算法寻找最优的投影方向，用最佳投影方向信息研究各评价指标对补偿效应的贡献率，发现光合速率的大小直接反应了补偿生长的能力，是影响补偿效应的关键因子，与以往研究结论相符，且适度胁迫复水后第5天表现出的补偿效应最佳。
基于Kalman滤波和纯追踪模型的农业机械导航控制（Trajectory Tracking Control Method Based on Kalman Filter and Pure Pursuit Model for Agricultural Vehicle）
DGPS Kalman滤波 纯追踪模型 导航
2009/11/3
以KUBOTA SPU-68水田插秧机为试验平台，以RTK-DGPS为主要导航方式，辅以航向姿态参考系统AHRS500GA-227，研究提高农业机械导航控制精度的方法。在重点对GPS倾斜误差校正的基础上，设计了Kalman滤波器对定位数据进行平滑处理，同时实现磁航向传感器偏移误差的在线辨识与航向校正。采用纯追踪模型实现农业机械直线跟踪控制，基于ITAE优化准则，仿真研究了最佳前视距离的确定方法。试...
Classifiability-Based Optimal Discriminatory Projection Pursuit
Classifiability-Based Optimal Discriminatory Projection Pursuit
2013/7/17
Linear Discriminant Analysis (LDA) might be the most widely used linear feature extraction method in pattern recognition. Based on the analysis on the several limitations of traditional LDA, this pape...