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Showing 1 to 2 of 2 for “"ATMOSPHERIC REFRACTIVITY"”.
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SIGNAL ANALYSIS AND RADIOHOLOGRAPHIC METHODS FOR AIRBORNE RADIO OCCULTATIONS
… System (GPS) radio occultation (RO) is an atmospheric sounding technique utilizing the change in propagation direction and delay of the GPS signal to measure refractivity, which provides information on temperature and humidity. The GPS-RO technique is now operational on several Low Earth …
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ΣΥΜΒΟΛΗ ΣΤΗ ΜΕΛΕΤΗ ΤΗΣ ΕΠΙΔΡΑΣΗΣ ΤΗΣ ΑΤΜΟΣΦΑΙΡΙΚΗΣ ΔΙΑΘΛΑΣΗΣ ΚΑΤΑ ΤΗ ΧΡΗΣΗ ΡΑΔΙΟΚΥΜΑΤΩΝ ΣΤΙΣ ΣΥΓΧΡΟΝΕΣ ΓΕΩΔΑΙΤΙΚΕΣ ΜΕΘΟΔΟΥΣ ΜΕΤΡΗΣΕΩΝ ΜΕΓΑΛΩΝ ΑΠΟΣΤΑΣΕΩΝ
THE THREE MAIN EFFECTS OF THE ATMOSPHERE ON RADIOWAVE PROPAGATION ARE: ATTENUATION, TIME DELAY AND ANGULAR BENDING. THE TIME DELAY CAN BE SEPARATED INTO HYDROSTATIC AND WET DELAY. DEVELOPED HERE ARE MODELS FOR THE ZENTH WET DELAY ESTIMATION AND FOR THE ELEVATION DEPENDENCE OF THE HYDROSTATIC AND …