Ionospheric correction and ambiguity resolution in DGPS with single frequency. by Ya’acob, Norsuzila, Abdullah, Mardina, Ismail, Mahamod, Jusoff, Kamaruzaman

“…In this study, the effects of initial phase ambiguity at GPS and modeling of ionosphere on base components were researched. To overcome this problem, a correction ionospheric model was used. …”
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Satellite remote sensing in earthquake prediction. A review by Alvan, Habibeh Valizadeh, Azad, Farid Haydari

“…Surface deformation data are provided by GPS and SAR imaging, land surface temperature changes by ASTER, Landsat TM and ETM, different types of cloud studies using MODIS and Seawifs data, electromagnetic and ionosphere anomalies by ground passive stations and radon gas emissions in the faults areas by solid on the ground detectors. …”
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