radio signals
Anomalies in VLF radio signals prior the Abruzzo earthquake =6.3) on 6 April 2009
... VLF/LF radio signals method for study- ing preseimic activity is applied to the Abruzzo earthquake ...The signals received from the Sardinia ...three signals (control ...
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Investigation of over-horizon VHF radio signals associated with earthquakes
... VHF radio signals from a FM (frequency modulation) transmitter during abnormal sit- uations (probably in close association with ...VHF signals in which we present the amplitude behavior, az- imuthal ...
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Possible earthquake precursors revealed by LF radio signals
... LF signals could be confirmed, then this type of precursor would seem capable of providing information on the direc- tion, and perhaps even the rough location of a forthcoming ...
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Decrease in the electric intensity of VLF/LF radio signals and possible connections
... VLF-LF radio signals. The in- tensity and the phase of the signals transmitted by GB (f =16 kHz, United Kingdom), FR (f ...the radio sig- nals with a duration of some days were revealed, ...
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RECEPTION OF JOVIAN RADIO SIGNALS IN A TROPICAL STATION
... the Radio Jove [9]. The software was used successfully to graph the radio signals and to depict the radio ...the radio signals as a function of ...the radio telescope at ...
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Indoor positioning using FM radio signals
... the radio signals and the fact that components of the mobile unit can partly shield signals from certain directions ...Wi-Fi signals, the user body has a noticeable effect on the signal ...
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A ground based investigation of high latitude ELF radio signals
... Following Gurevich 1978 a wave with electric field E and angular frequency w is considered to pass through a slab of ionospheric plasma with an average electron to neutral collision freq[r] ...
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Direct Position Determination of Multiple Radio Signals
... of radio signal emitters such as communications or radar transmitters are based on measuring a specified parameter such as angle of arrival (AOA) or time of arrival (TOA) of the ...
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On the fluctuation spectra of seismo-electromagnetic phenomena
... Hayakawa, M.: Lower ionospheric perturbations associated with earthquakes, as detected by subionospheric VLF/LF radio signals, in: Electromagnetic Phenomena Associated with Earthquakes, [r] ...
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Efficient Energy Utilization and Data Prognosis in Wireless Sensor Networks
... A Wireless Sensor Network (WSN) is a self-configuring network consisting of small sensor nodes communicating among themselves using radio signals, and is deployed in quantity to sense, [r] ...
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Interface developing for hata model using matlab
... a radio wave is obstructed by surfaces with ...allows radio signals to propagate around the curved surface of the earth and that in turn allows the propagation to travel behind a building or ...
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Low cost passive radar through software defined radio
... terrestrial radio signals, such as those produced by radio or television stations, to track objects within their ...Defined Radio (SDR) based passive radar ...
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Response of the Effelsberg 100 m radio telescope to signals in the near-field at 24 GHz
... parabolic radio antennas is usually defined by a radius R of the Fresnel zone of R = 2D 2 /λ, where D is the diameter of the antenna and λ the wavelength (Balanis ...m radio telescope and cm-wavelengths R ...
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Fluctuations of radio occultation signals in sounding the Earth's atmosphere
... GPS radio signals, amplitude fluctuations are significantly weaker because the Fresnel scale is about a thousand times greater than that in the visible ...
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Wireless Information Process and Power Transfer in Single-User OFDM System
... the signals that carry energy can transport information at the same time thereby providing perpetual energy for the energy- constrained wireless ...received radio signals are unable to decode the ...
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Classification of Sensors used in WSNs
... through radio signals or through acoustic signals. Radio signals are used by the terrestrial sensor networks whereas acoustic signals are used by underwater wireless sensor ...
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Seismo-electromagnetic phenomena in the western part of the Eurasia-Nubia plate boundary
... VLF/LF radio signals, for different seismic events, with the atmospheric electrical field and the radon levels; (2) theoret- ical modelling of the observed phenomena; (3) extend the empirical magnitude ...
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Design and Implementation of Sign in System Based on Bluetooth Technology
... the radio signals; The server is responsible for inputting and management of student information; APP is responsible for carrying interface for the teachers' mobile phone connected to the server , and the ...
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Evaluation Of Radio Frequency Interference (RFI) On Global Navigation Satellite System (GNSS) Signals
... with radio- frequency identification (RFID) tags are lead to degradation of GNSS ...GNSS signals as shown in Figure 1.1. This paper provides an overview of radio frequency interference (RFI) on the ...
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Just Asking for a Little "Respect": Radio, Webcasting & the Sound Recording Performance Right
... As the above example illustrates, copyright law subjects songwriters and performers to strikingly unequal treatment. For decades, performers have been lobbying Congress to correct this unfair imbalance in the Copyright ...
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