摘要
针对月震数据分布不均,传统反演方法不易搜索全局最优解等问题,提出联合使用重力/地形导纳和非线性粒子群PSO算法同时反演月球物理参数的方法。结果表明,该方法构建的表面地形载荷模型和内部异常密度载荷模型合理,粒子群PSO算法能同时求解月球物理参数及其全局最优解。将方法运用于月球物理参数的反演,可为月球内部结构研究提供一定的参考。
Because of the Apollo lunar seismic network merely located on the near side of the Moon and the traditional methods failing in the best solutions,several lunar parameters such as load ratio f,crustal thickness bc,subsurface load depth zb,crustal densityρc,lithospheric elastic thickness Tecan be solved through lunar gravity/topography admittance with PSO.Results indicate that surface and subsurface load models are rational and all the best solutions of the lunar parameters studied can be simultaneously calculated.It can provide a reference for lunar internal structure research,when such method investigated here applied to lunar geophysical parameters inversion.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2014年第12期1487-1492,共6页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41404021
41174019
41374024)
贵州省科学技术基金(黔科合J字[2014]2128)
贵州师范大学博士科研资助项目~~
关键词
重力/地形导纳
粒子群
月壳厚度
载荷比
弹性厚度
gravity/topography admittance
particle swarm optimization
load ratio
crustal thickness
elastic thickness
