引言反问题解的不唯一性是地球物理学中长期议论的主题之一。引起反问题解不唯一的原因很多,归纳起来主要是两方面:一是由于燥声的存在和各种干扰因素,使观测到的地球物理信息受到畸变,不能真实的反映所研究的物理对象;二是反演理论和反演方法的不完善,使解答有较大的任意性和不稳定性。 Introduction The non-uniqueness of solutions to inverse problems is one of the topics of long-term discussion in geophysics. There are many reasons that cause anti-problem solutions. There are mainly two aspects: First, due to the presence of dry noise and various disturbing factors, the observed geophysical information is distorted and can not truly reflect the physical object under study; The other is the imperfection of inversion theory and inversion method, which makes the solution more arbitrary and unstable.