The characteristic of arrayed waveguide gratings is analyzed with the linearsystemstheory and the optical grating equation is educed.
运用线性系统理论分析了阵列波导光栅的模场特性，导出器件传输的数学模型即光栅方程。
2
This paper attempts to solve the problem of nonlinear systems control using linearsystemstheory and fuzzy control theory for example of a planar manipulator with two degrees of freedom.
本文以二自由度平面机械手为例，尝试用线性系统理论和模糊控制理论解决非线性系统问题。
3
The state variable approach of modern control theory provides a uniform and powerful method of representing systems of arbitrary order, linear or nonlinear, with time-varying or constant coefficients.