节点文献
复杂地形条件下静校正的综合寻优
HYBRID OPTIMIZATION OF STATIC ESTIMATION IN COMPLEX TOPOGRAPHY
【摘要】 复杂地形 ,特别是山地条件下地震勘探中的大静校正问题是一个非线性的、具有多参数多极值的全局优化难题 .本文综合利用最大能量法、模拟退火与遗传算法的各自优势 ,提出一种具有局部收敛速度快、全局搜索能力强的综合寻优反演方法 .其中对产生伪静校正量的零空间现象进行空间平滑滤波剔除 .理论数值计算及实际资料的处理说明本方法适应能力强、静校正效果较好 .
【Abstract】 For the areas of complex topography, especially mountain area, static is a non-linear hybrid optimization problem with the presence of multi-parameters and multi-extremes. A hybrid optimization inversion method is developed to calculate large static by integrating stack power maximization, stimulated annealing and genetic algorithms. This method has a series of advantages, such as high-speed regional convergence and efficient global searching ability. A special smooth filtering operator is used to eliminate the pseudo-static null space phenomenon. Checking with synthetic and real seismic data shows that this method is adaptable and effective to process seismic data acquired in the areas with complex tomography.
【Key words】 Seismic prospecting in mountainous areas; Global optimization; Static; Null space.;
- 【文献出处】 地球物理学报 ,Chinese Journal of Geophysics , 编辑部邮箱 ,2003年01期
- 【分类号】P631.4
- 【被引频次】86
- 【下载频次】327