从理论上证明了高阶模波（如家快捷）的存在，在扩张消声器。
The existence of higher order mode waves (HOMW) in expansion mufflers is proved theoretically.
采用矢量有限元方法计算了任意轴对称谐振腔高阶模的本征频率。
Eigenfrequencies of high order modes in the axial-symmetric cavities are computed with a vector finite element method.
特别是LP02模具有良好的负色散值和能量分布，所以选用了LP02模作为高阶模补偿的模式。
Especially LP02 mode has huge dispersion and good energy distributing, so we choice LP02 mode as dispersion compensate.
对基模和高阶高斯光束通过位相板后的变化作了详细的计算分析。
Changes in fundamental and higher order Gaussian beams propagating through a phase plate have been studied numerically in detail.
针对一类高阶不确定非线性系统，基于指数型快速终端滑模的良好特性，提出了一种新的滑模变结构控制。
Based on the good properties of exponential fast terminal sliding mode, a novel sliding mode variable structure control for high-order uncertain nonlinear systems is proposed.
同时也预示着如果腔长过短，可能会出现高阶侧模的外腔锁相。
It also indicates that if the EC length is too short, phase locking between the high order lateral mode's is likely to appear.
为实现永磁同步电机的状态在线估计，采用一种新型带有微分器的高阶滑模控制技术。
The high order sliding mode control is designed to avoid chattering problem which exists in traditional sliding mode.
提出了一种测量微小角位移的新方法，该法基于一种金属包覆波导结构，通过棱镜耦合激发空气导波层中的超高阶导模作为灵敏探针。
Based on a symmetrical metal-cladding waveguide, ultrahigh-order modes in the guiding layer air gap can be excited through prism coupling to serve as sensitive probes.
但采用偏振度椭球取样方法，其补偿的误码特性明显要优于单偏振度取样，从而补偿了高阶偏振模色散。
When the DOP ellipsoid sampling method is used the performance is evidently better, because the effect of high-order PMD on PMD compensation is reduced.
研究非线性仿射系统的高阶滑模控制问题。
This paper addresses the high order sliding mode control problem of nonlinear affine systems.
双面金属包覆波导高阶导模对聚合物薄波导层的折射率变化比低阶导模更敏感。
High order guided mode in double metal-cladding waveguide is more sensitive to the refractive index variation of the polymer guiding layer by comparing with low order guided mode.
针对工业现场普遍存在的高阶对象，提出了一种基于误差驱动参数自整定递阶结构的模糊滑模控制策略。
Presents a new method to deal with higher-order process, called hierarchical fuzzy sliding mode control with error-driven adjustment parameters.
本文对一类非线性抛物型方程提出对称修正有限体积元方法，给出能量模最优阶误差估计，并证明了对称修正有限体积元方法的解与一般有限体积元方法的解之差是一个更高阶项。
In this paper, we present a kind of symmetric modified finite volume element method for nonlinear parabolic problems, and give the optimal order energy norm error estimates for full discrete schemes.
有几篇高阶滑模控制的资料与大家分享。
Regulation of RTAC systems via flatness and second order sliding.
提出了一种测量微小角位移的新方法，该法基于一种金属包覆波导结构，通过棱镜耦合激发空气导波层中的超高阶导模作为灵敏探针。
The free space coupling technique is utilized to excite the ultrahigh-order mode to act as a probe, which is considered to be very sensitive to the wavelength change.
另外，对称金属包覆波导的导波层厚度还可以扩展至亚毫米甚至毫米量级，并因此能够容纳模序数上千的高阶导模。
Besides, in the SMCW structure, the thickness of the guiding layer can be enlarged to submillimeter scale and can contain ultrahigh order guided modes with mode index of over 1000.
另外，对称金属包覆波导的导波层厚度还可以扩展至亚毫米甚至毫米量级，并因此能够容纳模序数上千的高阶导模。
Besides, in the SMCW structure, the thickness of the guiding layer can be enlarged to submillimeter scale and can contain ultrahigh order guided modes with mode index of over 1000.
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