基于相对阶的概念，利用反馈线性化的方法，得到状态反馈控制律。
Based on the concept of relative order, the state feedback controllers are obtained by using the way of feedback linearization.
运用微分几何方法讨论了存在相对阶的一般非线性控制系统的局部反馈渐近镇定问题。
Local feedback asymptotic stabilization problems for the general nonlinear systems which exist a relative degree are discussed.
结果表明：该方法不仅适用于不具有严格相对阶的系统，也适用于具有不稳定零动态的系统。
The results show that the method can be applied not only to systems with ill-defined relative degrees but also to non-minimum phase systems.
针对一类系统相对阶小于系统阶数的非线性系统，提出了一种基于输入输出线性化的观测器设计方法。
An observer design approach based on input-output linearization for a class of nonlinear systems whose relative degree is less than its orders is proposed.
同时指出，利用神经网络不仅可以对系统的状态进行辨识，而且可以辨识其相对阶数，并给出了完整的证明。
In the meantime, it is proved strictly that not only the system states but also the relative degree can be identified by using the neural network.
参考模型的选取只与系统的相对阶次有关，而与系统阶次无关，从而简化了控制器的设计，降低了对系统可测性的要求。
The choice of the reference model only depends on the relative degree of the plant but not the degree. The controller design is simplified and the system measurability is less required.
l在过程和步骤已经确定的给定系统中，一阶变化是个变异，它使系统本身相对的不变。
First-order change is a variation in the way processes and procedures have been done in a given system, leaving the system itself relatively unchanged.
计算量采用修正标量位，这样在同样的节点数下相对于矢量位它可以减少联立方程的阶数。
The modified scalar potential is used to reduce the order of the coupled equations in the comparison with the vector potential under the same node number.
研究了相对激发度在什么范围时三阶理论可用于分析气体激光器的运转。
The region of the relative excitations has been studied, in this region the third-order theory can be applied to analysis the operation of the gas laser.
第一阶模态振型相对均值系统的变化很小。一般地，结构参数的随机变异对模态振型均值的影响大于对模态频率、模态阻尼比均值的影响。
In general, the variation of structure parameters has more effect on the mean values of mode than those of modal frequencies and modal damping ratios.
因此，利用一阶应变振型在损伤前后的相对变化可以对框架结构节点的损伤进行诊断。
So the relative changes of first order strain mode before and after damage can be used to diagnosis the damage of frame structure joints.
探讨了二阶慢漂力中各成分在不同频率时的相对重要性。
Relative importance of each component contained in the second-order slowly varying forces is also discussed.
本文用多元回归方法，分析煤岩相组分和煤阶对煤及相对应煤焦表面形态的影响。
Linear regression method was used to analyse the effects of maceral and rank on morphology of coal and corresponding char.
前庭窗与圆窗的位置关系相对稳定，因此镫骨头（砧镫关节）可作为参照标志来确定鼓阶钻孔的位置。
The location of vestibular window and the round window is relatively stable, so the stapes head can be used as a reference for drilling scala tympani.
一阶趋势的OK方法中半方差函数模型选用高斯型的比选用球状和指数型的插值效果相对要好。
Within the method of first-order trend OK, Gaussian semi-variogram model performed better than both the spherical and exponential models.
唯一的要求是，相对于那阶模态振型来说，模态振型应该具有显著的数值；
The only requirement is that the mode shape should have a significant value in relation to its mode shape;
将系统的总势能对相对剪切变形求一阶导数（等于零），得到了弹性岩石的平衡条件。
The first-order derivative equal to zero of total potential energy with respect to the relative shear deformation of shear band leads to the equilibrium condition of elastic rock.
光束阶数越大、相干长度越小，部分相干平顶光束序列的相对束腰宽度扩散较快；
The influence of atmospheric turbulence on the relative beam width spreading is larger for PCFT beam array with larger beam order and smaller coherence length.
司法层面的权利位阶只是在具体案件中结合具体情境所作的相宜选择，是一种相对的合理性。
The right level of the judicial order only in specific cases in light of the specific situation of affordable choices, is a relatively reasonable.
该算法以相邻像素的二阶差分为基础，自动选择与目标像素点相对应的源像素组进行插值运算。
According to the second-order difference of the consecutive pixels, the source pixel group is automatically selected to compute the corresponding target pixel gray value.
束宽和远场发散角的相对误差随球差系数绝对值的增加和光束阶数的减小而增加；
The relative errors of the beam width and far-field divergence angle introduced by the spherical aberration increase with increasing spherical aberration coefficient and decreasing beam order.
当高层建筑的高宽比较大时，基阶固有频率相对较低；
The basic natural frequency of high-rise buildings with large aspect ratios should be low.
相对于固定式浮标，可实现海洋环境数据的“自主”采集。并给出了自主采集流程和软件分层递阶体系结构。
The system has two advantages: it can cover larger area than other AUVs and collect more autonomous data acquisition than a fixed float meter.
首先根据编队各星的初始相对状态，应用一阶一致性算法，协商估计出编队整体系统基准参考点的相对状态；
First, a reference point of the total formation system is estimated using the first order consensus algorithm according to the initial state of each satellite.
在所有的校正模型中，原始谱图经过二阶导数和偏最小二乘（PLS）处理，20个外部样品用于所建模型的验证，实际和预测的平均相对偏差<5%。
For all samples, the raw spectra were pretreated as second derivative and Norris derivative filter(7,5). partial least square (PLS) was used as the calibration algorithm.
在所有的校正模型中，原始谱图经过二阶导数和偏最小二乘（PLS）处理，20个外部样品用于所建模型的验证，实际和预测的平均相对偏差<5%。
For all samples, the raw spectra were pretreated as second derivative and Norris derivative filter(7,5). partial least square (PLS) was used as the calibration algorithm.
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