According to the influence of degenerate point configurations of projection matrix, the number of calibration correspondences and the track of users head are improved.
根据对投影矩阵的退化点结构的影响，改进了选取标定的对应点个数和用户头部的运动轨迹。
2
According to the perturbation theory, a distribution law of matrix element in secular equation is discovered in degenerate state and wave function property of the hydrogen atom.
根据简并态微扰理论和氢原子波函数的性质，得到久期方程中微扰矩阵元的分布规律。
3
In this paper, the time-resolved degenerate four-wave mixing in two-level system is treated rigorously with the density-matrix method.