搜索结果: 1-14 共查到“spectrum analysis”相关记录14条 . 查询时间(0.093 秒)
Blind Source Separation from Single Measurements using Singular Spectrum Analysis
side-channel analysis signal processing filtering
2016/3/23
Singular Spectrum Analysis (SSA) is a powerful data decomposition/recomposition technique that can be used to reduce the noise in time series. Compared to existing solutions aiming at similar purposes...
Low frequency signal spectrum analysis for strong earthquakes
VLF/LF signal propagation eartquake precursors
2015/8/24
We examined changes in the spectral composition of the low frequency (LF) subionospheric signals from the NRK transmitter (37.5 kHz) in Iceland that were received in Bari (Italy) relative to the earth...
Distribution of Zeros of Mittag-Leffler Function and Relevant Spectrum Analysis
Eigenvalue of Operator Fractional Derivative Mittag-LefflerFunction Spectrum Analysis
2012/8/10
This paper is devoted to the distribution of eigenvalues of op-
erators generated by differential expressions of fractional order with Sturm-
Liouville regional conditions. In particular it offers a...
Power Spectrum Analysis of Physikalisch-Technische Bundesanstalt Decay-Rate Data: Evidence for Solar Rotational Modulation
Solar and Stellar Astrophysics (astro-ph.SR) Nuclear Experiment (nucl-ex) Instrumentation and Detectors (physics.ins-det)
2010/12/29
Evidence for an anomalous annual periodicity in certain nuclear decay data has led to speculation concerning a possible solar influence on nuclear processes.
Deconvolution of window effect in galaxy power spectrum analysis
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
We develop a new method for deconvolving the smearing effect of the survey window in the analysis of the galaxy multipole power spectra from a redshift survey. This method is based on the deconvolutio...
Power Spectrum Analysis of Mount-Wilson Solar Diameter Measurements: Evidence for Solar Internal R-mode Oscillations
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/23
This article presents a power-spectrum analysis of 39,024 measurements of the solar diameter made at the Mount Wilson Observatory from 1968.670 to 1997.965. This power spectrum contains a number of ve...
GEO-INFO GRAPH SPECTRUM ANALYSIS FOR REPRESENTING DISTANCE RELATIONS IN GIS
Spatial Distance Geo-info Graph Spectrum, Spectrum Analysis
2014/6/12
Distance is a fundamental concept in spatial sciences. Spatial distance is a very important parameter to measure the relative positions between spatial objects and to indicate the degree of similarity...
基于小波和双谱分析的湍流相干结构辨识（Identification of Turbulent Coherent Structures Based on Wavelet and Bi-spectrum Analysis）
湍流信号 相干结构 双谱
2009/11/24
为了从湍流信号中获取更多关于相干结构的定量信息，提出了一种基于小波和双谱分析的辨识相干结构的方法。该方法通过双谱和互相关分析合理地得到了包含相干结构信息的大涡信号，利用小波变换有效地提取出表征湍流多尺度相干结构的信号成份。建立了基于小波分析辨识湍流含能尺度的能量最大准则，以沟槽壁面减阻机理实验的湍流数据分析为例，验证了该方法的合理性和可靠性。
基于激光诱导荧光光谱分析的黄瓜叶片叶绿素含量检测（Detecting of Chlorophyll Content of Cucumber Leaves Based on Laser-induced Fluorescence Spectrum Analysis Technique）
叶绿素含量 激光 叶绿素荧光
2009/11/3
0.93，p0.93, p<0.001) in this excitation light source condition. This research doesn’t only extend the scope of the application of chlorophyll fluorescence detection technology, but also provides a the...
CROSS-SPECTRUM ANALYSIS OF GROUNDWATER LEVELS IN AN ESKER
CROSS-SPECTRUM ANALYSIS GROUNDWATER LEVELS ESKER
2009/10/30
A study is made on 30-yc~r records of precipitation, river water stage,
and groundwater lcvels in the esker area south of Uppsala, Sweden, using
cross-spectrum analysis. The results are summarizcd a...
Timescale effect estimation in time-series studies of air pollution and health: A Singular Spectrum Analysis approach
Airborne particulate matter PM10 Singular Spectrum Analysis - SSA Generalized additive models - GAM
2009/9/16
A wealth of epidemiological data suggests an association between mortality/morbidity from pulmonary and cardiovascular adverse events and air pollution, but uncertainty remains as to the extent implie...
Singular Spectrum Analysis of Gene Expression Profiles of Early Drosophila embryo: Exponential-in-Distance Patterns
Singular Spectrum Analysis Gene Expression Profiles Early Drosophila embryo Exponential-in-Distance Patterns
2009/9/4
We present investigation of gene expression profiles by means of singular spectrum analysis (SSA). The biological problem under investigation is the decomposition of bicoid protein profiles of Drosoph...
On the singular values decoupling in the Singular Spectrum Analysis of volcanic tremor at Stromboli
singular values Singular Spectrum Analysis volcanic tremor Stromboli
2009/12/30
The well known strombolian activity at Stromboli volcano is occasionally interrupted by rarer episodes of paroxysmal activity which can lead to considerable hazard for Stromboli inhabitants and touris...
Principal component analysis and singular spectrum analysis of ULF geomagnetic data associated with earthquakes
Principal component analysis singular spectrum analysis ULF geomagnetic data
2009/12/29
In order to extract any ULF signature associated with earthquakes, the principal component analysis (PCA) and singular spectral analysis (SSA) have been performed to investigate the possibility of dis...