容错控制器在破碎机调速系统应用中的仿真研究

针对单输入单输出多回路系统,采取一种简单的容错控制技术,当控制系统中任一传感器失效时,采用邻近回路重构控制律对水下破碎机转速控制器加以补偿,使控制系统仍能稳定且控制质量与传感器失效前相一致,并给出了其仿真结果.图6,参9.     

A ROBUST DECOMPOSITION OF LINEAR PROGRAMMING USING A GOAL-PARTITIONING METHOD

The Dantzig/Wolfe linear programming decomposition algorithm has had important economicinterpretations as well as a widespread impact on solving large scale linear programming problem.Inthis paper we consider a similar underlying structure,where however there is only one couplinginequality or equation.With this simplification,we demonstrate how to achieve an equitable partitionof the overall coupling resource to individual subproblem constraints through a simple iterationprocedure which appears to be very efficient.     

系统的分散与集中的决策：（Ⅱ）分散控制效果分析

分散集中系统是一种重要的工业过程控制系统．合适的分散度有利于提高系统的性能指标，尤其是动态响应速度和误差时间的积分值都有明显地改善．文中提出若干系统分散的选择原则，并用仿真和理论分析加以证明．     

A High Speed Detection Scheme for Point Targets in a Multitarget Environment

The purpose of this paper is to develop a high speed detection scheme for moving and / or stationary point targets in a multitarget environment as registered in an IR image sequence. An iterative approximate 3-D line searching algorithm based upon the geometric representation of lines (for non-maneuvering targets in space) in a 3-D space is derived. The convergency of the algorithm is proved. An analysis is performed of the theoretical detection performance of the algorithm. The statistical experiment results show high effectiveness and computational efficiency of the algorithm in the case of low SNR. The idea may be employed to satisfy the real-time processing requirement of an IR system.     

LAMOST观测星表覆盖算法模型

介绍了几种针对LAMOST巡天战略的覆盖算法，在理论上分析这些算法的优劣，并通过模拟的手段证明了分析的结果是正确的。     

数据加密技术分析

目前 ,各种信息加密、信息隐藏技术已经广泛的应用于社会经济领域 ,特别是电子商务的迅猛扩展 ,使得数据加密技术得到了更为广泛的应用和发展。简要介绍了数据加密的一般方法及基于公钥加密算法的原理与方法 ,最后详细介绍了多步加密算法的方法与步骤 ,并在此基础上 ,结合作者的实践 ,给出了一个实用的完成该加密算法的应用程序。     

一个快速的二进制多重精度gcd算法

求两个整数的最大公因子（gcd)的经典的Euclid算法时间复杂度为O（ln^3n)，不适宜于多重精度运算。论文证明了gcd的相关性质，提出了一个基于二进制的、适用于多重精度运算的改进算法，其时间复杂度为O（ln^2n)。     

Method for Risky Multiobjective Group Decision-Making and Its Application

The multiobjective group decision-making problem under risk is common in reality. This paper focuses on the study about risky multiobjective group decision-making problem where the index value is not certain. We give indexes classifying method and index normalizing formula of this type problem. By building objective function that minimizes general weighted distance from every alternative to the relatively best and worst alternative, the optimal membership degree of every decision-maker to every alternative can be obtained, and by building another objective function that minimizes general weighted distance from the optimal membership degree of every decision-maker to every alternative to the group optimal alternative and the group inferior alternative, the optimal membership degree of every decision-maker to every alternative can be obtained, which are both based on probability theory and fuzzy theory. Aftermost a model is established which collects group preferences. This method provides a new idea and     

基于弯曲路径的复杂温度场重建算法仿真研究

以最小二乘法温度场图像重建算法为基础以费尔马定理为依据，对声学法工业炉温度场检测中由于声波传播路径弯曲对温度场重建所产生的影响进行了研究，给出一种实现声波路径弯曲补偿的复杂温度场重建算法，通过仿真，考察了该算法对不同温度场分布函数的重建效果，结果表明：该算法不但可实现声波路径弯曲的补偿，而且可同时进行温度场的重建，具有较高的重建精度。     

双基地声纳定位精度和算法研究

根据双基地声纳定位的特点，提出了一种单纯基于声波到达时间(TOL)的双基地声纳定位算法，给出了算法的原理和误差分布。通过数值仿真，研究了基线长度、时间测量误差对算法定位性能的影响。仿真结果表明，TOL算法的定位精度与基线长度有关，随着基线长度的增加，定位精度提高。时间测量误差对算法的定位精度影响较小。与同等条件下单基地声纳定位相比，双基地TOL算法具有更高的定位精度。该研究为多基地声纳新体制的建立，提供了理论依据。