【摘要】 求取转换波剩余静校量是非线性问题。为准确求取转换波剩余静校正量,将两种非线性全局最优化方法:粒子群算法和模拟退火算法融合成为粒子群退火算法(PSOSA)。为验证方法的有效性,建立了单层模型,合成带有剩余静校正量的转换波地震记录,对该地震记录利用PSOSA求取剩余静校正量并进行静校正。结果表明:静校正后的叠加剖面和单炮记录同相轴连续性较好,求得的剩余静校正量误差较小,证明了PSOSA能较准确地求取转换波的剩余静校正量。更多还原

【Abstract】 Estimation of converted wave residual statics is a nonlinear problem.In order to estimate converted wave residual statics accurately,we combine two nonlinear optimization methods,the particle swarm optimization and simulated annealing,into a new algorithm PSOSA.To test its validity,we build a single-layer model,achieve the synthetic seismogram with residual statics,estimate residual statics by using PSOSA and correct the origin synthetic seismogram with achieved statics.The result shows good continuity of stack section and good single shot gather after static correction and small error of the statics.Those prove that the PSOSA can estimate converted wave residual statics accurately.更多还原