| 航空重力测量数据向下延拓中空间协方差函数特性研究 |
| |
| 引用本文： | 张皞,陈琼,丛明日.航空重力测量数据向下延拓中空间协方差函数特性研究[J].测绘科学,2006,31(4):51-53. |
| |
| 作者姓名： | 张皞 陈琼 丛明日 |
| |
| 作者单位： | 解放军信息工程大学,测绘学院,郑州,450052 |
| |
| 摘 要： | 本文通过对航空重力测量数据的分析,建立起具有空间相关特性的空间协方差函数模型。利用所建立的模型,将航空重力测量试验数据采用最小二乘配置的方法向下延拓到地面,与地面已知重力数据进行比较。由比较结果,分析了空间协方差函数模型对航空重力测量数据向下延拓结果的影响,并表明所建立的空间协方差函数模型,满足协方差函数特性,且在局部区域使用能够达到满意的精度要求。
|
| 关 键 词： | 空间协方差 最小二乘配置 航空重力测量 向下延拓 |
| 文章编号： | 1009-2307(2006)04-0051-03 |
| 修稿时间： | 2005年7月5日 |
Research on space covariance function's characteristic during downward continuation of airborne gravity measurement data |
| |
| ZHANG Hao,CHEN Qiong,CONG Ming-Ri.Research on space covariance function''''s characteristic during downward continuation of airborne gravity measurement data[J].Science of Surveying and Mapping,2006,31(4):51-53. |
| |
| Authors: | ZHANG Hao CHEN Qiong CONG Ming-Ri |
| |
| Abstract: | By the analysis of airborne gravity measurement data,this paper constructs a space covariance function model with spatial characteristics.Using this model,the airborne gravity measurement test data is downward continued based on least squares collocation and is compared with known ground gravity data.According to the result of this comparison,the effect of this model on airborne gravity measurement data downward continuation is analyzed.And it indicates that this model can satisfy the characteristics of covariance function and can be used in local areas with satisfied precision. |
| |
| Keywords: | space covariance least squares collocation airborne gravity measurement downward continuation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
