搜索结果: 1-14 共查到“地球物理学 signal”相关记录14条 . 查询时间(0.046 秒)
2017年EGU“环境地震学”伽利略会议（EGU Galileo conference：From process to signal–advancing environmental seismology）
2017年 EGU 环境地震学 伽利略 会议
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2017/1/20
The application of seismic techniques to the study of Earth surface processes is a rapidly growing field. However, the field is relatively new and inherently multidisciplinary. As a consequence, no pl...
EFFECT OF THE X5.4 CLASS SOLAR FLARE EVENT OF SOLAR CYCLE 24 ON THE GPS SIGNAL RECEPTION IN PENINSULAR MALAYSIA
Solar Flare GPS MyRTKnet Total Electron Content Ionospheric Delay
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2016/10/14
In this paper, we examine the effect of solar flare event on the Global Positioning System (GPS) signal reception in Peninsular Malaysia during the X5.4 class solar flare on 7th March 2012, 00:24 UT a...
Interpretation of magnetic anomalies using the horizontal gradient analytic signal
horizontal gradient analytie signal horizontal derivative vertical derivative interpretation aeromagnetic anomaly magnetic anomaly
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2015/9/28
In recent years the analytic signal method has been of great utility in the interpretation of potential field data. The amplitude of the 3D analytic signal of magnetic data yields information on the l...
Determination of electrical signal masked by random noise using «super-averaged» functions
Electrical methods electromagnetic methods data acquisitions data processing signal to-noise radio
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2015/9/28
Electrical and electromagnetic methods often require the determination of the amplitude of a periodic signal,produced by controlled sources and masked by natural and artificial noise. Since noise is u...
Could we find any signal of the stratosphere-ionosphere coupling in Antarctica?
ionosphere-stratosphere interaction temperature profiles
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2015/9/25
An investigation searching for a possible coupling between the lower ionosphere and the middle atmosphere in Antarctica is here performed on the basis of stratospheric vertical temperature profiles an...
Atmospheric anomalies over Mt.Etna using GPS signal delays and tomography of radio wave velocities
GPS atmospheric anomalies tropospheric delays tomography of radio wave velocities
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2015/9/2
Due to the prominent topography of Mt. Etna, the use of satellite geodetic techniques may significantly suffer from atmospheric heterogeneities. This problem mainly affects the DInSAR technique. To ov...
Some considerations for different time-domain signal processing of pulse compression radar
code correlation ionosphere radar time domain
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2015/8/28
Radar technology has for a long time used various systems that allow detection under high-resolution conditions, while emitting at the same time low peak power. Among these systems, transmitted pulse ...
Decrease of VLF transmitter signal and Chorus-whistler waves before l'Aquila earthquake occurrence
Decrease of VLF transmitter signal Chorus-whistler waves l'Aquila earthquake occurrence
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2010/10/21
We investigate the VLF emissions observed by the Instrument Champ Electrique (ICE) experiment onboard the DEMETER micro-satellite. We analyze intensity level variation 10 days before and after the occ...
Non-Kolmogorov atmospheric turbulence and optical signal propagation
Non-Kolmogorov atmospheric turbulence optical signal propagation
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2009/11/9
In the present review, we make an attempt to attract attention to the effect of non-Kolmogorov behavior of turbulence in various scales on the characteristics of electromagnetic waves propagation thro...
Extracting low frequency climate signal from GRACE data
low frequency climate signal GRACE data
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2009/10/22
For more than three years, the GRACE pair of satellites have been orbiting the Earth, monitoring the time variable mass distribution for scales ranging from regional to global. The GRACE data have bee...
Surface nuclear magnetic resonance signal contribution in conductive terrains
SNMR MRS detection depth
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2009/3/5
To correctly invert and interpret Surface Nuclear Magnetic Resonance (SNMR) data collected in conductive terrains, an accurate estimate of subsurface conductivity structure is required. Given such an ...
Dependence of radar signal strength on frequency and aspect angle of nonspecular meteor trails
radar signal strength frequency and aspect angle
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2017/3/22
When a meteoroid penetrates Earth’s atmosphere, it forms a high-density ionized
plasma column immersed in the ionosphere between approximately 70 and 140 km
altitude. High-power, large-aperture (HPL...
Extracting low frequency climate signal from GRACE data
low frequency climate signal GRACE data
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2010/9/28
For more than four years, the GRACE pair of satellites have been orbiting the Earth, monitoring the time variable mass distribution for scales ranging from regional to global. The GRACE data have been...
Challenges in Signal Analysis of Resonant-Mass Gravitational Wave Detectors
Signal Analysis Resonant-Mass Gravitational Wave Detectors
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2010/10/18
An overview of the main points related to data analysis in resonant-mass gravitational wave detectors will be presented. Recent developments on the data analysis system for the Brazilian detector SCHE...