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瞬变电磁反演是复杂的非线性问题,通过对非线性反演方法中比较新的粒子群算法进行研究,结合前人研究成果提出了一种新的改进策略。经过函数测试证明,所提出的改进策略较明显地提高了粒子群算法的寻优能力。建立电模型,进行瞬变电磁反演计算,计算结果表明算法反演精度较高。利用改进型粒子群算法反演程序对瞬变电磁实测资料进行反演计算,结果证明其反演效果较好。
The transient electromagnetic inversion is a complex nonlinear problem. By studying the new PSO in the nonlinear inversion method and combining with the previous research results, a new improved strategy is proposed. After the function test, the proposed improvement strategy obviously improves the optimization ability of particle swarm optimization. The electric model is established and the transient electromagnetic inversion calculation is carried out. The calculation results show that the inversion accuracy of the algorithm is high. Inversion algorithm of the improved electromagnetic particle swarm algorithm is used to calculate the transient electromagnetic data. The results show that the inversion results are good.