搜索结果: 1-12 共查到“工学 magnitude”相关记录12条 . 查询时间(0.062 秒)
Model Makes Designing New Antennas Orders of Magnitude Faster
Designing Antennas Orders Magnitude Faster
2016/4/25
We propose a method for modeling planar multiport antennas of arbitrary shape using characteristic mode theory (CMT) without physically including the feeds. The characteristic modes of the feed-free s...
PhaseLift: Exact and Stable Signal Recovery from Magnitude Measurements via Convex Programming
Exact and Stable Signal Recovery Magnitude Measurements Convex Programming
2015/6/17
Suppose we wish to recover a signal x ∈ Cn from m intensity measurements of the form |hx, zii|2, i = 1, 2, . . . , m; that is, from data in which phase information is missing. We prove that if the vec...
FUSION OF MULTI PRECURSORS EARTHQUAKE PARAMETERS TO ESTIMATE THE DATE, MAGNITUDE AND AFFECTED AREA OF THE FORTHCOMING POWERFUL EARTHQUAKES
Hazards earthquake precursor prediction integration satellite data ionosphere
2014/4/28
Since not any individual precursor can be used as an accurate stand alone means for the earthquake prediction, it is necessary to integrate different kinds of precursors. The precursors selected for a...
DETERMINATION OF MAGNITUDE AND DIRECTION OF LAND USE/ LAND COVER CHANGES IN TERKOS WATER BASIN, ISTANBUL
Land Use Land Cover Environment Change Detection SPOT Analysis
2014/4/29
Remotely sensed data have huge importance to determine land use/cover changes for sustainable region planning and management. Variety of techniques in order to detect land cover dynamics using remote ...
Robust estimation of magnitude–frequency relationship parameters
Modified maximum likelihood Magnitude–frequency relationship Seismic hazard North Anatolian fault zone
2012/4/26
The precise estimation of the a and b parameters of Richter’s magnitude–frequency relationship is of primary importance, since the evaluation of seismicity and assessment of seismic hazard depend on t...
Robust estimation of magnitude–frequency relationship parameters
Modified maximum likelihood Magnitude–frequency relationship Seismic hazard North Anatolian fault zone
2012/4/26
The precise estimation of the a and b parameters of Richter’s magnitude–frequency relationship is of primary importance, since the evaluation of seismicity and assessment of seismic hazard depend on t...
Time-Resolved Error Vector Magnitude for Transmitter Mask Testing in Coherent Optical Transmission Systems
Time-Resolved Optical Transmission Systems Mask Testing
2015/5/15
We propose a novel transition-sensitive measurement approach for coherent optical systems. The time-resolved error vector magnitude (EVM), combined with mask testing, is a powerful tool for pass/fail ...
Fusing Local Patterns of Gabor Magnitude and Phase for Face Recognition
Fusing Local Patterns Gabor Magnitude Phase Face Recognition
2010/12/21
Gabor features have been known to be effective for face recognition. However, only a few approaches utilize phase feature and they usually perform worse than those using magnitude
feature. To investi...
基于信号分解和群延时的维格纳分布改进方法（Improved Wigner Ville Distribution Based on Signal Decomposition and Modified Magnitude Group Delay）
Wigner Ville分布 离散余弦谐波小波变换 交叉项抑制 修改群延时函数 吉布斯效应
2010/2/26
提出一种WVD (Wigner Ville distribution)的改进方法。应用离散余弦谐波小波变换对多分量信号进行分解，计算分解后得到的单分量信号的WVD，将单分量信号的WVD沿频率轴串联得到整个信号的WVD，抑制分布的交叉项。应用修改群延时函数减少因WVD核函数截断而产生的波动效应，改善分布的时频分辨率。通过算例中的线性调频信号和应用实例中轴承振动信号验证表明，改进后的WVD有满意的时频...
The Magnitude and Spatial Distribution of In-use Zinc Stocks in Cape Town, South Africa
Cape Town EDA (Exploratory Data Analysis) GIS
2008/10/24
Cape Town is a major urban area that possesses large reservoirs of in-use zinc. These reservoirs will gradually become available for re-use as the zinc-containing products become obsolete, should re-u...
A General Magnitude-Preserving Boosting Algorithm for Search Ranking
Directed distance function (DDF) magnitude-preserving pairwise-preference
2012/12/3
Traditional boosting algorithms for the ranking problems usually employ the pairwise approach and convert the document rating preference into a binary-value label, like RankBoost. However, such a pair...
Bh序列和Magnitude错误标准下m元纠错码构造
Magnitude Bh序列
2008/3/7
本文对Bh序列和Magnitude错误标准下m元t-sEC/AUED码的关系进行了讨论，并在此基础上提出了一种Magnitude错误标准下m元可纠t个对称错的纠错码的构造方法并相应的给出了可纠t个对称错的纠错码码字个数的下界。