线性的

Simulation results prove that the performance of the new method is similar with the linear interpolation method at the lower velocity; while it is better than the linear interpolation method at the higher velocity and a little worse than the quadratic polynomial interpolation.

通过仿真表明，在低车速时，该算法的误比特率性与线性插值方法基本相同；而在中高车速时，该算法的误比特率性能要明显优于线性插值信道估计方法，与二次插值信道估计方法的性能基本相同。

This thesis introduces the basic principle of the least square data fitting.. According to the least square data fitting ,the paper studies and analyzes the linear least square fitting ,the quantic least square fitting and nonlinear least square fitting respectively . By using the mathimatic instrument Matlab , this paper shows a lot of examples of interrelated questions. Using Matlab makes the theory of data fitting easier to be understood.

本文介绍了最小二乘数据拟合法的基本原理，并根据最小二乘数据拟合方法，分别针对线性最小二乘拟合、多项式最小二乘拟合，非线性最小二乘拟合（lsqcurvefit、nlinfit、lsqnonlin、以及非线性的线性化）、多元最小二乘拟合进行了分析和研究，并通过数学工具Matlab实现了对相关问题的举例应用，使相关数据拟合理论更加生动易懂。

The ordinary structure mapping methods mainly include two kinds in an area of linear or quasi linear variation of velocity with depth: the one is space correction for isochronic t 0 map resulted from interpretation of stack section; the other is to using uniform velocity for time depth conversion of isochronic t 0 map resulted from interpretation of migration section.

石油地球物理勘探，2 0 0 1，36 (5 )：6 18～ 6 2 5 在速度随深度呈线性或准线性变化的地区，主要有两种常规构造成图方法：1对由水平叠加解释剖面得到的等 t0 图进行空校；2对由偏移解释剖面得到的等 t0 图采用统一速度进行时—深转换。

The analytical results of radio frequency glow discharge optical emission spectrometry further proved that the content of each element in this series of stainless steel reference materials had good graded distribution. The linear investigation of characterisation elements indicated that the linearity was also good.

射频辉光放电发射光谱的分析结果进一步证明：本套不锈钢标准样品的各元素成分含量有良好的梯度分布，对定值元素进行成线性考查，线性关系良好。

Two linear objective programming models are established under the situations where the decision maker has preference information on alternatives, which takes the form of reciprocal judgement matrix and complementary judgement matrix respectively, and a method based on the models is presented for ranking alternatives in MADM.

在决策者对方案的偏好信息以互反和互补判断矩阵这两种形式给出的情况下，分别建立了一个线性目标规划模型，并提出了一种基于线性目标规划模型的多属性决策法。

For a seemingly unrelated regression system consisting of m equations, we propose a new type of estimator called pre test ridge regression estimator by combining the idea of preliminary test and ridge regression methodology and establish some statistical properties of PTRRE.

对于由 m个相依线性回归方程组成的线性回归系统，本文作者基于岭回归估计和预检验估计，提出了回归参数的一种新型估计，即预检验岭回归估计。并讨论了它的统计性质。

Summarized are the suspending principle, technology characteristic and applicable range of repellence and attraction maglevvehicle. Analyzed as a emphases are the drive technology characteristic and performance compare of long－stator and short－stator linear synchronization motor driving for maglevvehicle

综述了斥力型和吸力型磁浮列车的悬浮原理、技术特征及适用范围，重点分析了两种不同的磁浮列车驱动方式——长定子线性同步电机驱动及短定子线性同步电机驱动的技术特征和性能比较。

Results the parameter estimates and it's stability of linear regression models is associated with the variation of explanatory variable between and within level 2units,and the relationship of parameter estimates and it's stability between linear regression models and variance component model is associated with level 2 residual variance or intatra-unit correlation.

结果 线性回归模型参数估计以及估计的稳定性与自变量在水平2单位间和水平2单位内的变异大小有关，线性因归模型与方差成分模型参数估计及其稳定性的关系与水平2残差方差或单位内相关系数大小有关。

Based on the linear theory of gyrotron, and using the Laplace transformation and residue theorem, the kinetic theory of a novel gyrotron with three-mirror quasi-optical cavity is developed within the framework of the linearized Vlasov-Maxwell equations.

基于回旋管线性理论，运用Laplace变换和留数定理的方法，在线性Vlasov-Maxwell方程组的框架下，研究了特殊三反射镜准光腔回旋管的动力学理论。

By using the elementary row transformation in the controllable matrix, the input matrix is replaced by the maximally linear independent set of its column vectors.

中文摘要：分析了求多输入线性系统能控规范型算法的不足，提出了一种新的改进型求解线性定常系统能控规范型的迭代算法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。