LINE-MASS HARMONIC ANALYSIS METHOD BASED ON SATELLITE GRAVITY GRADIENT DATA
Wu Xing 1,2) ;Zhang Chuanding 3) ;Wang Kai 3) ; and Feng Wei 4)
1)Center for Engineering Design and Research Under the Headquarters of General Equipment, Beijing 1000282)Naval Institute of Hydrographic Surveying and Charting,Tianjin 3000613)Institute of Surveying and Mapping，Information Engineering University，Zhengzhou 4500524)Global Information Application and Development Center of Beijing, Beijing 100094
Abstract Targeting at the new type data called gravity gradient, the basic formulae and equations of the global line mass model and harmonic analysis are derived. The line mass models based on radius real component, horizontal complex component and full tensor are studied,so are the least squares solutions. The harmonic analysis formulae of line mass models are shown completely, which have various advantages such as eliminating the disperse errors and dealing with multitypes data compared with point mass harmonic analysis. The line mass method is better than the point mass method as the former is with consideration of different depths and with various frequencies. Finally, the availability and validity are proved through simulation experiments.
