对于光开关，材料的非线性修正项有着基础性的意义。
The nonlinear correction term is basically responsible for the optical switches.
理论分析和仿真研究结果表明：这种非线性修正比例导引算法具有良好的导引性能。
The traditional proportional navigation, combined with the estimator forms the nonlinear modified guidance law. Theoretical and simulation results demonstrated the gui…
对非线性修正问题，目前常用的有光程差替换法、干涉图二次采样法和NUFFT法。
Three methods of correction for the nonlinear OPD were described and compared in this paper, namely NUFFT method, OPD replace method and interferograms fitting method.
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