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| 引用本文： | 常宜峰,柴洪洲,王敏.??????????С??????溯???????????????????о?[J].大地测量与地球动力学,2012,32(3):86-89. |
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| 作者姓名： | 常宜峰 柴洪洲 王敏 |
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| 作者单位： | 解放军信息工程大学测绘学院,郑州,450052 |
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| 摘 要： | ?????溯????????????????????????????????????????????????????????С???????????????????????????????У??????????????????????????????????????????????????????????????????У?????????????С????????ж???????Ч????С?????????????????????????????????????????С??????????溯?????????????????????????????????????????
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| 关 键 词： | ???????????? ??????? ??????С??????? ???溯?? ??? |
STUDY ON CONSTRUCTION OF LOCAL MARINE GEOMAGNETIC FIELD MODEL BASED ON ORTHOGONAL LEAST SQUARE MULTI-SURFACE FUNCTION |
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| Chang Yifeng
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Chai Hongzhou
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Wang Min.STUDY ON CONSTRUCTION OF LOCAL MARINE GEOMAGNETIC FIELD MODEL BASED ON ORTHOGONAL LEAST SQUARE MULTI-SURFACE FUNCTION[J].Journal of Geodesy and Geodynamics,2012,32(3):86-89. |
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| Authors: | Chang Yifeng Chai Hongzhou Wang Min |
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| Institution: | (Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052) |
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| Abstract: | Aim at the problem of quality control and node choice in modeling local marine geomagnetic field based on multi-surface function,a fitting method with combining robust trend surface and orthogonal least squares is proposed.In order to control the influence of some outstanding points to surface fitting,a robust fitting of the trend surface by using an equivalent weight is adopted and the adaptive node choosing method is proposed based on the effect of every node on the curve fitting calculated by using the orthogonal least squares as well.The results show that this method is more effective in accuracy and stability than normal method. |
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| Keywords: | local marine geomagnetic field robust estimate orthogonal least square multi-surface function node |
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