��ת���������¼�������ֵ���ڼ��仯�������Ǽ��Է�����תʱ����ͳת�����ٶȷ�����������׼ȷ��Ϊ�ˣ�����PP ��AB ����ϵ���ٶȷ������������PP ��AVO ЧӦ��˼·���Դ��� AVO �����ת�������Ͻ���AB ����ϵ����������չ���Ƶ������ڽ��ת��������AVO �����AB ����ϵ��������Ϊ���ת�����ٶȷ��������ṩ������֧�š�

Conventional velocity analysis results of converted wave are inaccurate when amplitude change with offset existing in converted wave seismic record��especially polarity reversed�� Therefor��based on the consideration of AB similar coefficient velocity analysis of PP wave to resolve the AVO effection��the authors extend converted wave data with AVO phenomenon by AB similar coefficient method��and derive AB similar coefficient method to settle the converted wave with AVO phenomenon��which provide theoretical support to improve the accuracy in converted wave velocity analysis��