| 航空重力测量中的厄特弗斯改正 |
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| 引用本文： | 田颜锋,刘晓刚,孙文,朱军.航空重力测量中的厄特弗斯改正[J].测绘工程,2011,20(3):9-11,20. |
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| 作者姓名： | 田颜锋 刘晓刚 孙文 朱军 |
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| 作者单位： | 信息工程大学测绘学院;73603部队; |
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| 基金项目： | 国家自然科学基金资助项目(40774031); 卫星导航与定位教育部重点实验室(B类)开放基金资助项目(GRC-2009010) |
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| 摘 要： | 为提高航空重力测量数据的处理精度,在分析厄特弗斯改正计算模型的基础上,研究飞机的速度误差、方位误差和位置误差对厄特弗斯改正的精度影响,进一步研究模型中平方项对滤波处理的影响。结果表明：速度误差是影响厄特弗斯改正精度的主要因素,另外,厄特弗斯改正不需要进行滤波处理。
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| 关 键 词： | 航空重力测量 厄特弗斯改正 滤波处理 预滤波 |
E(o)tv(o)s correction of aerial gravity measurement |
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| TIAN Yan-feng,LIU Xiao-gang,SUN Wen,ZHU Jun.E(o)tv(o)s correction of aerial gravity measurement[J].Engineering of Surveying and Mapping,2011,20(3):9-11,20. |
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| Authors: | TIAN Yan-feng LIU Xiao-gang SUN Wen ZHU Jun |
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| Institution: | TIAN Yan-feng1,2,LIU Xiao-gang1,SUN Wen1,ZHU Jun2 (1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China,2.73603 Troops,Nanjing 210049,China) |
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| Abstract: | In order to improve the disposal precision of the surveying data in aerial gravity measurement,the influence of the airplane’s velocity error,orientation error and position error to the precision of Etvs correction are studied based on the analysis of the computational model of Etvs correction,and the influence of the square items in the model is further studied.The results show that the velocity error is the main factor in the influence of the Etvs correction precision,and the Etvs correction has no use for filtering processing. |
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| Keywords: | aerial gravity measurement Etvs correction filtering processing pre-filter |
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