查询词典 trial-and-error method

It points out the topic, meaning and creative; introducing the consist and principle of the intelligent vehicle navigate system in chapter 2; analyzing the method of GPS-oriented and the error origin in chapter 3; analyzing briefly the principle and merged method of interspaced diversity and resist multi-decline in chapter 4; introducing the hardware and software realization of ambulant station of intelligent vehicle navigate /dispatcher system based on multi-GPS antenna in detail in chapter 5; giving the debugging and simple trial result of ambulant station in chapter 6; The lasted propose solving tactics to problem that exist in studying, draws a conclusion of this thesis and plans the future researching works.

指出本课题的研究的主题、意义及创新点；第二章概括性介绍了智能车辆定位导航系统的组成与原理；第三章分析了GPS定位的方法和误差来源；第四章重点分析了空间分集抗多经衰落的原理和信号合并方法；第五章详细介绍了多GPS天线智能车辆导航/调度系统车载台的软硬件实现；第六章给出了车载台的调试和简单试验结果。最后对研究中存在的问题提出了解决策略及下一步的研究方向。

An isolated point s statistic excluding method is proposed in this paper to eliminate crassitude error in clouding data, which include plenty of oddity data. The method based on the distance between two neighbour points can eliminate the data beyond normal distribution. A error limitation of angle and chordal highness method is used to filtrate clouding point.

针对大量含奇异点的数据点云，本文提出了剔除粗大误差的孤立点统计排异法，该方法根据对相邻点距离的统计，剔除在正态分布以外的点；对大量数据的精减，利用角度和弦高的最大允许偏差法进行点云精减。

This thesis proposes a novel method of retiming E1 signal of the SDH output and using it as a reference synchronization signal for Trunking Gateway. The proposed retiming method can generate the E1 signal of TG input in comply with the maximum relative time interval error requirement of 52.5ns specified in the PRC-Generation standard. The method successfully reduces the E1 signal error level to a smaller margin of 300ns than that of the PRC-output standard.

本论文提出将同步数位阶层输出E1信号做时序重整，做为中继闸道器的做参考同步信号；这样可使输入中继闸道器的E1信号在最大相对时间间隔误差达到主参考时钟产生的52.5奈秒标准；更能让中继闸道器输出的E1信号，由超出同步数位阶层自由振荡4.6微秒，改善到低於主参考时钟输出的300奈秒标准。

As to system s uncertainty such as time varying characteristics, grey multiple step error correction method took the place of the conventional single step error correction method. The new method could effectively overcome the bad influence of some factors such as model mismatch.

针对对象特性时变等不确定因素，该文以灰色多步误差预测校正替代原有算法的当前一步误差校正，可以更为有效的克服模型失配等因素的影响。

The root-cause for the synchronous error of multiple axes of the vehicle panoramic sight platform was found after analysis with the geometric method. Since the synchronous error is caused by the windage angle produced in the working process of the optoelectronic platform, the method to correct the angular deviation at any distance is proposed. The experiment for solving the problem was implemented. The experiment indicates that the method is valid.

针对车载周视观瞄平台异轴同步性问题采用几何作图法进行分析，得到异轴同步问题产生的根源是不同光电平台转动过程中由于存在偏差角所致，对校准距离情况下的角偏差，距离小于校准距离情况下的视差和距离大于校准距离情况下的角偏差在3中不同区间的修正方法进行分析并进行等效近似，给出程序实现方法，最后用实验验证了此方法的正确性。

This article takes the Lan-Cheng-Yu product oil transportation pipeline as an example, describing the idea of product oil batched transportation's transportation circle and oilcan cubage optimization design. That is to adopt trial and error method, which contracts only those could affect the optimization result and forgets the other aspects of the pipeline. Within the design life of the pipeline, the method's dynamic economic analysis is taken to decide the optimum transportation circles and the total oilcan cubage needed for the whole line.

本文以兰-成-渝成品油输送管道为例，介绍了成品油输送管道的顺序输送批次和罐容优化设计思想，即采用试算法，将管道中相同部分不参与经济比较，对优化结果有影响的部分参与比较，在管道设计寿命期内，进行方案的动态经济分析，以确定最优的循环次数和沿线需要设置的储罐容量。

By re-constructing the system, the residual error dynamic characteristics of unknown input and fault signals including unknown disturbances and modelling error are obtained. The energy norm indexes of disturbance and fault signals of residual error are selected separately to reflect the restraint of disturbance and the sensitivity of faults, and the design of fault detection observer is described as an optimization problem.

通过对系统进行重构，获取了包括未知扰动、建模误差等未知输入信号和故障信号的残差动态特性，分别选取残差的扰动信号和故障信号的能量范数指标来体现其对扰动的抑制作用和对故障的灵敏性，并将故障检测观测器的设计描述为一个优化问题。

In Chapter 2, we consider the error bound and the auxiliary problem algorithm for the generalized linear complementarity problem over a polyhedral cone: First, we give an absolute and a relative global error bound for GLCP and nondegenerate GLCP, respectively, and then we explore the properties of the solution set of the problem, based on which we establish another absolute and relative error bound for GLCP which is much exacter compared with the result above.

第二章主要研究了闭凸锥上广义线性互补问题的误差界及基于其上的一个求解GLCP的辅助问题算法：(1)给出了GLCP的全局绝对误差界和在有非退化解时的全局绝对误差界及其相对误差界；(2)对GLCP的解集结构进行了探讨，并利用得到的结果给出了GLCP的另一个全局绝对误差界和相对误差界估计；(3)我们提出了一个求解GLCP的辅助问题算法，并证明在适当条件下该算法具有全局收敛性。

After the analytic model is set up and the error rate is derived, the system error performances of uncoded and Turbo coded DPIM are simulated and analyzed under weak turbulence channel, and the system error performances under Gaussian channel are simulated for comparison.

在建立分析模型和推导差错率的基础上，在弱湍流信道条件下仿真分析了Turbo码编码前后的系统差错性能，同时与高斯信道条件下的系统差错性能进行了比较。

The arc data interpolation error by secant, tangent and chord, and the smallest error by secant mode is analyzed in this paper. The relation between the maximum radial error and arc radius and approach step-length in the secant mode of arc data interpolation in CNC system is detailed.

在分析数控系统圆弧数据插补割线方式较切线、内接弦插补方式误差更小的基础上，讨论了数控系统圆弧数据插补割线方式中最大径向误差与圆弧半径和逼近步长的关系。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。