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多次仿真
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  multi-simulation
     Some key techniques were developed such as standardized module design, the time-space consistency, the database design, the interface design and the multi-simulation recovery.
     解决了软件实现过程中的模块规范化设计、时空一致性、数据库设计、界面设计、多次仿真复位等关键技术。
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  “多次仿真”译为未确定词的双语例句
     The result of stimulating experiments by MATLAB,85%~98% of the documents got from the internet can be classify correctly.
     通过对从网上下载的批量图形文档利用 MATL AB进行多次仿真实验 ,单页文档的正确分类率达到了 85%~ 98%。
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     Through many simulation experiments,more than half gained optimal solution which the algorithm could get,and the results appeared steady.
     通过多次仿真实验研究,其中半数以上达到了本算法所能得到的最优解,并且试验结果比较稳定。
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     The result of stimulating experiments by MATLAB, 85%~98% of the documents got from the internet can be identified correctly. 
     对从网下载的批量图形文档利用MATLAB进行多次仿真实验结果,单页文档的正确识别率达到了85%~98%
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     The performance of our scheme is characterized in terms of bit error rate versus E_b/N_0 by numerically simulating its operation in the presence of noise and filtering.
     文中在有噪声和滤波的情况下对新系统进行多次仿真,用比特误码率(BER)和比特信噪比(Eb/N0)的关系刻画了新方案的性能并与CPPM系统进行了比较。
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     When emulated and simulated, the module can also communicate with industrial control unit and any other assist devices having communication port to realize complicated industrial control.
     通过多次仿真与模拟,该模块还能与工控机以及具有通讯接口的任何辅助器件进行通讯,完成复杂的工业控制。
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     Simulation of Programmable Interrupt Controller
     可编程中断控制器的仿真
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     Furthermore,the simulation is made to verify the validity and practicability of the algorithm.
     通过多次仿真实验验证,该算法是可用的和有效的.
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     Simulation System for Ship Navigate
     船舶驾驶仿真
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     multiple pregnancies;
     多次妊娠;
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     THE EMULATION OF THE TRANSIENT PROCESS OF MULTI-ARM SINGLE-TUNING FILTER SWITCHING
     多串多次滤波器投切的暂态过程仿真
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  multi-simulation
The system is being used as a model for a larger implementation of distributed multi-simulation environment.
      


The author advanced a new method,control quality weighting (CQW) method,for the parameters self optimizing adjusting in the PID control system.The key to the new method is that the sum of two control qualities (transient time T s and overshoot δ ) equals to minimum with the same weighting ( T s+ δ) or different weighting (p 1 T s +p 2 δ).A large quantity of data and pictures outputed from multisimulations have shown fully that the controlling qualities get better in the CQW method than in the used...

The author advanced a new method,control quality weighting (CQW) method,for the parameters self optimizing adjusting in the PID control system.The key to the new method is that the sum of two control qualities (transient time T s and overshoot δ ) equals to minimum with the same weighting ( T s+ δ) or different weighting (p 1 T s +p 2 δ).A large quantity of data and pictures outputed from multisimulations have shown fully that the controlling qualities get better in the CQW method than in the used methods like ITAE code,ISE code and experiential coefficients etc.Also the new CQW method should be able to satisfy different user's requirements easily,if the users pay more attention to one of the control qualities than to another or they pay regard to both as the same.

提出了一种新的,用于PID控制,以两个控制品质参数(过渡时间Ts和超调量δ)等权或不等权和最小为整定准则,称为“控制品质加权法”的控制参数自寻优整定方法.多次仿真输出的图形和数据结果充分证明,采用控制品质加权法,比采用ITAE误差准则、ISE误差准则和经验乘系数等各种传统方法,都能提供更优的控制参数,从而使系统的控制品质得到明显改善,并能满足对过渡时间Ts和超调量δ看重程度不同用户的不同要求

The development of maneuvering targets models is introduced and analyzed in this paper, and the current statistical model is stated too.A large number of simulation results show that it's very useful to improve the accuracy of maneuvering targets tracking for the current model and the model has a good future.

介绍和分析了机动目标运动模型的发展与现状 ,阐述了机动目标“当前”统计模型。经过计算机多次仿真 ,统计结果表明 :采用“当前”统计模型的跟踪精度从距离上分别比采用常加速度模型和 Singer模型提高了 2 5%和 1 0 % ;从角度上分别比采用常加速度模型和 Singer模型提高了 1 5%和 7%。这表明该模型对提高机动目标跟踪精度的有效性及应用前景。

A hybrid Petri net named colored time constraint hybrid(CTCH) Petri net with the characteristic of dynamical scheduling in batch processes is proposed. The scheduling problem of batch processes is mapped as the solution of the optimal sequences of transitions in CTCH Petri net. Then taking the ultimate utilization of resources, that is the minimal make sqan as the scheduling objective , a solution method of the optimal sequences of transitons in CTCH Petri nets for batch processes is presented according...

A hybrid Petri net named colored time constraint hybrid(CTCH) Petri net with the characteristic of dynamical scheduling in batch processes is proposed. The scheduling problem of batch processes is mapped as the solution of the optimal sequences of transitions in CTCH Petri net. Then taking the ultimate utilization of resources, that is the minimal make sqan as the scheduling objective , a solution method of the optimal sequences of transitons in CTCH Petri nets for batch processes is presented according to the primary principle of the dynamic programming. The method defining time constraint area is discussed under the different intermediate storage policies. Finally, as an example the scheduling problem of steelmaking & continous cast system is simulated. The results show that when the scheduling result varies from the start time of each task and device or the dynamical continuous processes change, the scheduling results are different. Hence, this algorithm is verified to be effect.

针对批处理过程动态调度问题的特点 ,以赋色时间限制混合Petri网为工具 ,建立了批过程动态调度的混合Petri网模型 ,将批过程的调度问题映射为求Petri网中变迁的最优激发序列问题 .在此模型基础上 ,根据动态规划基本原理 ,以资源的终极利用即最短生产周期作为调度目标 ,提出了一种基于赋色时间限制混合网模型求取变迁的最优激发序列的方法 ,并针对实际情况中出现的复杂的中间产品存贮策略 ,讨论了在各存贮策略约束下该模型中时间限制区间的确定方法 ,最后以炼钢 连铸生产系统的过程调度为例 ,对该算法进行了仿真 .多次仿真结果表明 ,当任务和设备的初始时刻或者过程的动态过程发生改变时 ,调度结果各不相同 ,从而验证了该算法的有效性 .

 
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