中文摘要：

利用Jason-1SGDR数据分析Tseng波形修正法存在的问题,通过修改参考波形选取策略和异常点插值的定权策略提出改进的波形修正算法。实验表明,改进算法能够避免Tseng法导致的波形前缘变形问题,提高近海海面高的精度。

英文摘要：

Waveform modification provides a possibility to further improve the quality of coastal altimetry data.Using the Jason-1SGDR data,the shortcoming of Tseng＇s modification method is pointed out.We propose an improved modification algorithm by revising the strategy of selecting reference waveforms and determining weights for amending outliers.Test results show the improved method can avoid the deformation of waveform leading edge caused by Tseng＇s method,and effectively increases the precision of coastal sea surface heights.