From Frequency Spectrum Occupation to Effi ciently Utilization by Hui LI

“…The situation and causes of satellite frequency occupation in the current satellite network fi ling publication, coordination and operation was analyzed.Through the specifi c research on several typical topics in the current satellite frequency coordination compatibility analysis, specifi c measures were proposed to improve the eff ective utilization of satellite frequency orbit resources, so as to provide the eff ective sharing of satellite radio frequency technical methods.…”
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An Empirical Model of the Ionospheric Sporadic E Layer Based on GNSS Radio Occultation Data by Bingkun Yu, Xianghui Xue, Christopher J. Scott, Xinan Yue, Xiankang Dou

“…In this study, we have constructed an empirical model of the Es layer using the multivariable nonlinear least‐squares‐fitting method, based on the S4max from Constellation Observing System for Meteorology, Ionosphere, and Climate satellite radio occultation measurements in the period 2006–2014. …”
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Optimal nonlinear filtering of MPSK signals in the presence of a Doppler frequency shift by G. V. Kulikov, T. T. Do, R. R. Usmanov

“…Comparison of the results of this work with results obtained in the case of the absence of fluctuations in the initial phase showed that, at a high relative speed of the transmitter and the receiver (satellite radio channel), the energy loss is no more than 1 dB, and at lower speeds of the objects, it is about 0.2 dB and less.…”
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Performance Analysis of a Strong Constraint 4DVar and 4DEnVar on Regional Ionosphere Imaging by Nicholas Ssessanga, Wojciech Jacek Miloch, Lasse Boy Novock Clausen, Daria Kotova

“…Verification of reconstructions is with independent observations from ground‐based ionosonde and satellite radio occultations: the performance of both schemes is fairly adequate during the quiet period when the background has a better estimation of the hmF2. …”
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ALGUNAS APLICACIONES RECIENTES DE LA TÉCNICA DE RADIO OCULTAMIENTO SATELITAL EN EL ESTUDIO DE PROCESOS ATMOSFÉRICOS by Alejandro de la Torre, Pedro Alexander, Pablo Llamedo, Rodrigo Hierro, Horacio Pessano, Andrés Odiard

“…In particular it will be shown: i) the spatial distribution of stationary gravity waves, ii) their propagation in the lower and middle atmospheres, and iii) the possible relevance of mountain waves as a triggering mechanism of seep convection processes with hail production. Key words: satellite radio occultation, gravity waves.…”
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