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利用“跳跃模型”讨论了大调制度下光折变材料对运动干涉条纹的非静态记录过程，给出了描述运动干涉条纹非静态记录时电荷密度波前三阶分量振幅的微分方程，以及前三阶空间电荷场的解析表达式．讨论了前三阶空间电荷场振幅改变量对干涉条纹运动速度的依赖关系，若扩散场不为零但较小时，施加较小的外电场能够实现对空间电荷场高阶分量选择性地增强．若扩散场较大（大于外加电场），则不能实现对空间电荷场高阶分量选择性地增强．
The non-static recording process of photorefractive material to the motion interference fringes under the large-scale system is discussed by using the “jump model”, and the differential equation describing the amplitude of the third-order component of the charge density wave front during the non-static recording of the motion interference fringes is given. Analytical expression of the third order space charge field. The dependence of the amplitude of the first three-space charge field on the movement speed of the fringe pattern is discussed. If the diffusion field is not zero but small, the application of a small external electric field can selectively enhance the high-order component of the space charge field. If the diffusion field is larger (larger than the applied electric field), the higher-order component of the space charge field can not be selectively enhanced.