简介:ThispaperfocusesonthestudyofoceanbathymetricinversionfromsatellitealtimeterdatabyusingFFTtechnique.Inthisstudy,thefree-airgravityanomaliesovertheSouthChinaSeaaredeterminedbythesatellitealtimeterdataofGEOSAT,ERS-1,ERS-2andT/P.Andthe2.5′×2.5′bathymetrymodelinSouthChinaSeaiscalculatedfromthegravityanomalieswiththeinversionmodelgiven.Aftertheanalysisoftheinversionandthecomparisonbetweentheresults,someconclusionscanbedrawn.