卫星测高正常点海面高度计算方法研究  

Research on the Method of Sea Surface Heights at Normal Points in Satellite Altimetry

作　　者：刘传勇[1] 黄谟涛[1] 欧阳永忠[1] 王克平[1] 周坚[2] 李红兵[3] 

机构地区：[1]海军海洋测绘研究所 [2]92899部队 [3]91561部队

出　　处：《海洋测绘》2005年第6期4-8,共5页Hydrographic Surveying and Charting

基　　金：国防预研基金项目(41322050302)

摘　　要：正常点海面高计算是卫星测高数据处理的基础。从测高卫星飞行轨道的规律出发,提出了采用“距离加权平均”计算正常点海面高的新方法,阐述了“距离加权平均”这一方法计算正常点海面高的原理。并分别利用传统方法和新方法所计算出的中国海域内正常点海面高数据,进行交叉点海面高不符值及其平差计算,对所得结果进行精度评定。实际计算结果比对证明了利用“距离加权平均”法计算正常点海面高的可行性和优越性。The computation of sea surface heights （SSH） at normal points is the foundation of satellite altimeter data processing. Based on the orbit theory of altimeter satellite, a new method, called as “means of power of distance”, is proposed to determine the mean SSH at normal points. The differences of SSH at crossover points are calculated with two sets of SSH data computed with the new method and the traditional method. Then the crossover point adjustment is carded out. And the adjustment accuracy is estimated. The comparison results are used to prove the feasibility and advantage of the new method over the traditional method.

关 键 词：卫星测高 正常点 距离加权平均 直线拟合 

分 类 号：P228.3[天文地球—大地测量学与测量工程]