��ȡת����ʣ�ྲУ���Ƿ��������⡣Ϊ׼ȷ��ȡת����ʣ�ྲУ�����������ַ�����ȫ�����Ż�����: ����Ⱥ�㷨��ģ���˻��㷨�ںϳ�Ϊ����Ⱥ�˻��㷨( PSOSA) ��Ϊ��֤��������Ч�ԣ������˵���ģ�ͣ��ϳɴ���ʣ�ྲУ������ת���������¼���Ըõ����¼����PSOSA ��ȡʣ�ྲУ���������о�У�����������: ��У����ĵ�������͵��ڼ�¼ͬ���������ԽϺã���õ�ʣ�ྲУ��������С��֤����PSOSA �ܽ�׼ȷ����ȡת������ʣ�ྲУ������

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��