Ara
Toplam kayıt 20, listelenen: 11-20
Investigation of Hourly and Daily Patterns for Lithosphere-Ionosphere Coupling Before Strong Earthquakes
(Ieee, 2009)
The ionosphere can be characterized with its electron density distribution which is a complex function of spatial and temporal variations, geomagnetic, solar and seismic activity. An important measurable quantity about the ...
Mode Separation And Direction Of Arrival Estimation In Hf Links
(Amer Geophysical Union, 2003)
[1] Estimation of arrival angles and incoming signals is a challenging problem for HF channels where the signals are correlated and the separation between the signals can be as low as a couple of degrees. In this paper, a ...
Gps/Tec Estimation With Ionolab Method
(Ieee, 2007)
Total Electron Content (TEC) is a key variable to measure the ionospheric characteristics and disturbances. The Global Positioning System (GPS) can, be used for TEC estimation making use of the recorded signals at the GPS ...
Total Electron Content Estimation With Reg-Est
(Amer Geophysical Union, 2007)
Total Electron Content ( TEC) constitutes one of the key elements for observing the variable structure of the ionosphere. GPS provides a cost- effective alternative in TEC estimation through earth- based receivers. In this ...
A New Technique for Direction of Arrival Estimation for Ionospheric Multipath Channels
(Elsevier Sci Ltd, 2009)
A novel array signal processing technique is proposed to estimate HF channel parameters including number of paths, their respective direction of arrivals (DOA), delays, Doppler shifts and amplitudes. The proposed technique ...
Regularized Estimation of Vertical Total Electron Content From Gps Data For A Desired Time Period
(Amer Geophysical Union, 2004)
In this paper a new algorithm for short-term regularized estimation of vertical total electron content (VTEC) from Global Positioning System (GPS) data is developed. The regularization technique can combine signals, from ...
Regularized Estimation of Vertical Total Electron Content from Global Positioning System Data
(Amer Geophysical Union, 2003)
A novel regularization technique which can combine signals from all Global Positioning System (GPS) satellites for a given instant and a given receiver is developed to estimate the vertical total electron content (VTEC) ...
Sistem Analizi ve Tasarımı
(Hacettepe Üniversitesi, 2007)
T.C. Milli Eğitim Bakanlığı ve T.C. Yükseköğretim Kurumu tarafından ortaklaşa hazırlanmış olan ve sınavsız geçiş ile öğrenci alan yüksekokulların teknik programlarında, Sistem Analizi ve Tasarımı 1 ve Sistem Analizi ve ...