A Study on Orbit Determination by Using the Data of Crossovers from Satellite-borne Altimeter

Starting with the status of the developments of oceanic altimetry satellites, the significance of orbit determination by using altimeter data is introduced. Then the error correction model of the altimeter data and the calculational method of the data of crossovers are analyzed. The modification quantities of the errors and the adopted model concerned in the files of the altimeter data from the aircraft JASON-1 are also introduced in detail. Finally, through the calculations of the simulated data and the data of actual measurements, the highest accuracies of the orbit determination reached by solely using the altimeter data and the data of crossovers are analyzed, respectively. And this work provides a valuable reference to the practical applications in future.