How to determine the misalignment quickly

exactly and constantly is the key to the technology of computer-aided optical alignment. First

the mathematical simulation

which is the relationship between the misalignment and the aberrations is founded. Then

the concept of pseudoinverse and the algorithm of the singularity robust inverse are proposed in order to solve the problems of the numerical instability and the result inaccuracy which result from the solution for leastsquares method directly. Finally

the simulant calculation is processed using the numerical analysis model established in this essay. The result shows that the computation method is rational and effective.