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浅海区域Topex/Poseidon测高卫星数据波形重构方法 被引量:16

WAVEFORM RETRACKING OF TOPEX/POSEIDON ALTIMETER IN CHINESE OFFSHORE
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摘要 根据测高卫星返回波形的特征 ,给出了由Topex Poseidon卫星波形数据进行波形重构的方法 ,并采用函数逼近算法确定波形重构改正量 ,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四圈T P测高卫星经过波形重构后的海面高数据 .近海岸海面高数据与相近时刻验潮站数据相比 ,精度比波形重构前有了很大提高 ,证明该方法的有效性 . Based on the character of T/P satellite altimetry return waveform, we present a method to retrack the waveform data and determine the retracking correction with function approach, then improve the precision of altimeter observations in offshore.*#For the South China Sea region,*#we have processed four cycles T/P altime- ter waveform data. Compared with near time tide gauge data, the precision of the post-processing sea level height is greatly improved. We conclude that this method can be used to determine sea level height with high precision in offshore regions.
出处 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2004年第2期216-221,共6页 Chinese Journal of Geophysics
基金 国家自然科学基金项目 ( 4 0 3 740 0 7) 地球空间环境与大地测量教育部重点实验室研究基金 0 3 -0 4-0 4
关键词 卫星测高 波形重构 波形数据处理 近海海平面高 函数逼近算法 Satellite altimetry, Waveform retracking, Waveform processing, Offshore sea level height.
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参考文献10

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