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| 1 | 曲网格克里金网格化方法及其在重力测量近区地形改正中的应用显示文摘文中将研究一种高精度、强稳定性与灵活性的近区地改值计算方法。首先将克里金网格化技术与曲网格方法相结合,研究曲网格克里金网格化方法(简写为CGKG-M)及其扩边技术,进而实现数据的圆域网格化;再将该方法应用于圆域近区地改值的计算中,实现任意方位、任意环数的圆域近区地改值计算;最后进行了模型与实际地形的测试和误差分析。研究结果表明,CGKG-M近区地改算法具有方法简单、计算精度高、灵活性与稳定性强、计算速度快等特点,是与GTCS-1型近区地改仪数据采集格式相匹配的一种高效、快捷的近区地改值计算方法。 | 唐小平 刘宽厚 耿涛 冯治汉 | 2015 | 物探与化探2015，39，4： | 5 |
| 2 | APPLICATION OF THE HARTLEY TRANSFORM IN THE COMPUTATION OF THE GEOID IN CHINA显示文摘This paper presents a method for the computation of the Stokes for-mula using the Fast Hartley Transform(FHT)techniques.The algorithm is mostsuitable for the computation of real sequence transform,while the Fast FourierTransform(FFT)techniques are more suitable for the computaton of complex se-quence transform.A method of spherical coordinate transformation is presented inthis paper.By this method the errors,which are due to the approximate term inthe convolution of Stokes formula,can be effectively eliminated.Some numericaltests are given.By a comparison with both FFT techniques and numerical integra-tion method,the results show that the resulting values of geoidal undulations byFHT techniques are almost the same as by FFT techniques,and the computation-al speed of FHT techniques is about two times faster than that of FFT techniques. | NING Jinsheng LI Jiancheng CHAO Dingbo | 1998 | Geo-Spatial Information Science1998，1，1： | 0 |
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