随机环境中线性控制分枝链的概率性质

引进了随机环境中线性控制分枝链的基本概念，讨论了这种概率模型的灭绝概率，用生成母函数严格表达了第n步灭绝的概率，进而讨论了各类母函数之间的关系，并得到了随机环境中线性控制分枝链的期望公式；基于以上的结果，采用鞅方法，严格表达了随机环境中线性控制分枝链的增殖速度。     

~（60）Co多层组合板源的照射率分布计算

本文推导出平面多层组合板源在空间任意点产生的照射率分布公式；并给出了数值计算结果和三维分布曲面；由二维及三维的分布讨论了照射率均匀分布的条件。     

多步时滞随机系统的适应跟踪

研究了多步时滞随机系统基于ＥＬＳ算法的适应控制问题，建立了多步时滞系统的ＥＬＳ算法，并推得用该算法辨识系统参数的收敛速率。证明了闭环系统是全局稳定的，且对参考信号的跟踪达到最优。     

推土机极限载荷控制系统的探讨

在推土机作业过程中,急剧变化的外部阻力常常会使发动机转速下降或者使机器滑转率上升,进而导致工作状况恶化。提出了一推土机极限荷载自动控制系统,该系统可以根据机器的工作状态自动调整铲刀的切削深度,从而保证推土机始终工作于生产率最高的状态。     

神东上湾煤矿综采工作面开机率分析

本文介绍了神东公司上湾煤矿综采工作面生产情况,统计了工作面的进刀、割煤、跑空刀时间,计算了工作面开机率并对如何提高开机率进行简单分析.对于其它综采面如何提高开机率、产量及效率有一定的参考和借鉴.     

非确定的公钥密码及其实现

首先引入非确定的公钥密码和解密成功率的概念, 并基于有限域上多变元问题的困难性, 给出其实现方案N-HFMS; 然后对F_q［M］中非奇异矩阵的数量进行分析, 利用Euler-φ_q函数推导出F_q［M］中非奇异矩阵的精确计数公式. 结果表明, 该方法不仅可对任意特定N-HFMS实例的解密成功率进行精确估算, 还可推导出N-HFMS方案的解密成功率下限, 从而在理论上证明N-HFMS的可行性. 利用N-HFMS方案, 可约定会话密钥, 进而实现保密通讯.     

New blind adaptive approach to multiuser detection in CDMA systems

Due to a number of advantages, blind adaptive multiuser detector has become a research hotspot in recent years. But low convergence rate problem occurs to many blind adaptive algorithms. A new blind adaptive approach to multiuser detection is presented. The simulation results show that by reasonably choosing time varying step size, the proposed detector can not only improve the convergence rate, but also reduce the bit error rate (BER) of the system, and so it can effectively improve the system performance with less computational cost.     

Novel clutter map CFAR algorithm with amplitude limiter

The traditional clutter map constant false alarm rate (CM-CFAR) detector is affected by interference and self-masking[1] which will cause the low probability of detection. To solve these problems, a novel algorithm named clutter map CFAR with amplitude limiter (ALCM-CFAR) is proposed, in which the amplitude of the input signal is limited by a filter. The simulation results prove the effectiveness of ALCM-CFAR algorithm.     

A STACKELBERG DIFFERENTIAL GAMES SOLUTION TO A PROBLEM OF OPTIMAL INTERTEMPORAL INVESTMENT AND TAX RATE DESIGN

Using the Stackelberg differential games(SDG) theory, we quantitatively study a problem of optimal intertemporal investment and tax rate design. Under some appropriate assumptions, the open-loop Stackelberg equilibrium solutions are obtained. Equilibrium solutions show that: 1. The optimal strategies derived from differential game and unilateral optimal control approaches are different; 2. It is not always the best strategy for the government to use a constant tax rate over the whole time period; 3. The admissible size of tax rate adjustment may have great effect on the government's optimal strategy; 4. SDG approach has no significant effect on the firm's optimal investment strategy.     

大型电渗析器等效计算方法研究

研究了根据小型电渗析器的试验运行数据，设计生产大型电渗析器的淡水产量、脱盐率以及所需的膜对数和段数计算方法，并介绍了工程设计使用实例．