场调制 meaning in English

field modulation
space modulation

Then , according to the geometrical optics , the modulation of structure light by the parallel projective illumination and the emanative projective illumination is discussed to educe the height formula corresponding to these two illuminative mode
然后，基于几何光学分析，讨论物体轮廓对平行投影及发散投影结构光场调制问题，导出与这两种照明方式相适应的高度公式。
3 . in order to show the fact that the - licrowave modulates the background plasma density and the density grating influences the propagation of the microwave in return , the dispersion relation of the dielectric cerenkov maser filled with plasma grating is derived when the modulation parameter is varied
三、为了反映等离子体被微波场调制从而形成密度周期性分布的等离子体栅，反过来影响电磁波的传播这一物理事实，在调制系数变化的情况下，从等离子体栅的等效模型出发，推导了等离子体栅填充的介质cerenkov脉塞的色散方程。