摘要
根据GOCE和EGM08重力场模型的频谱互补性,利用Wenzel加权谱组合法构建了GOCE和EGM08的组合重力场模型。累积大地水准面误差表明,组合重力场模型具有明显的优势。美国实测GPS/水准检验结果表明,Dir4+EGM08的组合模型精度最高,比EGM08模型精度提高了8%。
Some combined GOCE and EGM08 geopotential models are established using Wenzel' s weighted spectral combination approach. Cumulative geoid errors show that combined models have better performance than the EGM08 model alone. Results of geoid differences at GPS/leveling bench- mark in America indicate that a Dir4+EGM08 combined model has best performance amongst others, enhancing geoid precision up to 8% relative to EGM08 model.
出处
《大地测量与地球动力学》
CSCD
北大核心
2015年第3期481-484,共4页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41104047)
大地测量与地球动力学重点实验室开放基金(SKLGED2013-4-5-E)