海洋卫星测高波形重定技术

The Ocean Satellite Height Measuring and Wave Reset Technique

根据测高卫星返回波形的特征,给出了一套由Topex/Poseidon卫星波形数据进行波形重定的具体公式。采用函数逼近的方法确定波形重定改正量,进而改善测高卫星近海岸海面高观测值的精度。在中国南海区域计算了三圈T/P测高卫星经过波形重定后的海面高数据。近海岸海面高数据与相近时刻验潮站数据相比,精度达到20.40cm,证明了该方法的正确性。

According to wave characteristics returned by the height - measuring satellite, a group of concrete formula is offered, which can be used to reset wave combined with wave data provided by the Topex/ the Poseidon satellite. Combined with employing method of function approaching to obtain the correction, we can then increase the accuracy of height measurement of the inshore ocean surface by high satellite. Compared with the synchronal data attains from the tide station, sea - level measured by the satellite through computing three T/ Ps and resetting wave in the maritime district in south china, can reach good accuracy of 20.40cm,which proves the validity of this method.