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In the paper, the researches and conclusions are:The basic theory and technique ofgeography information system, Introduce the history of the GIS technique developmentand it develops the trend, the GIS modernizes the meaning of the construction and thepurpose and the meaning of the topic researches to the our army artillery.The design ofartillerist numeric map, Make use of the soft strong graphics function of the SuperMapgeography information system, from how made the numerical map of artillery tocommence, carried on the processing and processed the piece to the artilleryappropriative paper quality diagram to manufacture the numerical map of artillery.Themold of choosing the position of artillerist and excavating the position of spacedata;Rules of space clustering analyzing and space relationship on the basis ofmathematics configuration;Choosing the path of positing convert;optimalpath arithmetic on the basis of chart theory and realize optimal path analyze.
论文研究内容有:地理信息系统的基本理论与技术,介绍GIS技术发展的历史及其发展趋势,GIS对我军炮兵现代化建设的意义和课题研究的目的及意义;炮兵地图数字化设计与制作,利用SuperMap地理信息系统软强大的制图功能,从如何制炮兵数字地图入手,对炮兵专用的纸质地图进行处理和加工件来制作炮兵数字地图;炮兵阵地选取分析模型、阵地空间数据挖掘模型的建立和挖掘过程,基于数学形态学的空间聚类分析法、空间关联规则法的挖掘模型;阵地转移的路径选择,对炮兵阵地转移路径进行分析,基于图论中的Dijkstra最优路径算法,实现转移最佳路径分析。
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After being compared and analyzed, asphaltene deposition models can be classified as the ones based on phase splitting and colloid instability.
在对比分析的基础上,将沥青沉积模型划分为基于相劈分的沥青质沉积模型及基于胶体不稳定性的沥青质沉积理论模型,指出了各模型的局限性及其存在根源。
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After being compared and analyzed, asphaltene deposition model s can be classified as the ones based on phase splitting and colloid instability.
在对比分析的基础上,将沥青沉积模型划分为基于相劈分的沥青质沉积模型及基于胶体不稳定性的沥青质沉积理论模型,指出了各模型的局限性及其存在根源。
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Its theory is: evaluate periodical by various methods, and then make the results standardization, select the extreme value of these results as the final score of periodical. The research indicates that it is must been used carefully to calculate weight by combined assessing method; assessing methods based on order can't been used to combine; combined assessing based on extreme value method is propitious to establish harmonious relationship between assessor and assessee.
其原理是,首先选用各种可行的评价方法进行评价,然后将评价结果标准化,将同一期刊不同评价结果的极大值作为该期刊的最终评价结果,取得了较好的效果,研究表明,采用组合评价进行权重计算必须慎重使用;基于秩序的评价方法不能用于组合;基于极值法的组合评价方法有利于建立和谐的评价者与被评价者关系,结果容易得到公认。
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On the basis of the theory of option pricing,We study the connection between America call option and European call option;Under the assumption condition of Black-Scholes formula ,use the theory of martingales and stopping time,get the conclusion that: the price of America call option equals the price of European call option; Discuss some numeric computing methods of the put America option pricing, with the invarional inequaility for optimal stopping, prove the boundary property of America put option price ...
基于期权定价的基本理论,研究美式看涨期权与欧式看涨期权之间的关系;在Black-Sc holes公式假设条件下,利用鞅和停时理论,得美式看涨期权的价格与欧式看涨期权的价格相等;探讨美式看跌期权价格的数字化计算,在相关假设条件下,利用基于最优化时的变分不等式证明了美式看跌期权价格的有界性,并介绍了几种美式看跌期权价格的数字化计算方法。
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The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.
本文研制了用于真空度检测的高频脉冲电源,通过Simulink仿真和试验检验其满足设计要求,实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出;利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集,通过异步串行通信实现单片机与计算机之间的数据通信,将检测数据传至上位机;在上位机利用Matlab开发人机交互界面,实现相关数据处理和图形显示,包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。
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The common method, that all strong-correlation terms of the model are eliminated, can bring the loss in the engineering application, so the new method is proposed that the identified model reserves some correlation. The augmented matrix A is constructed by the outputΔW and the matrix S. The"determinating order based on ratio of determinant"is brought out to screen the strong-correlation terms in the structure identification. The latent root estimation is improved in screening the eigenvalues and eigenvectors. Thus the estimation precision is improved greatly.The consistence check of guidance instrument error coefficients of flight test and ground test is the purpose of flight experiment. The causes of inconsistency of the two models are analyzed. The hypothesis test of linear regression model based on F statistics is proposed to check the consistence.Finally, the instability of error coefficients is probably caused by the change of the flight environments, therefore, the relation between the error coefficients and flight environment is analyzed. The approach is presented to identify SINS guidance instrument error models and compensate the error in the segmented sections corresponding to the change of vertical acceleration of aircraft.
在结构辨识中,常用的方法由于将模型中的强相关项全部剔除而给工程应用带来损失,因此,本文提出了新的有益思想,即在保留一定相关性的基础上进行辨识:将输出向量ΔW与环境函数矩阵S构成增广矩阵A,然后采用"比定阶行列式"来剔除相关向量的方法,这样既可以尽可能多地保留了对落点影响大的强相关参数,又可以对落点影响小的强相关参数给予剔除;在参数估计中,改进了特征根估计中特征根和特征向量的筛选方法,提出"近零"准则,从而大大提高了参数估计的精度;再者,鉴于天地模型"一致性"检验是飞行试验和SINS制导工具误差系数分离的主要目的,因此,本文又深入分析了造成天地模型不一致的原因,提出了采用基于F统计的线性回归模型假设检验方法来进行捷联制导工具误差模型的天地"一致性"检验;最后,鉴于飞行环境剧烈变化可能会对惯性仪表误差系数稳定性带来一定的影响,因此本文深入地分析了SINS制导工具误差系数与外界环境的关系,提出了基于过载变化大小的分段辨识和分段实时补偿的算法。
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Based on the study of the Recycling Network System of WEEE, one part of Shanghai Science and Technology Commission research of "Technology for Distilling Aurum from WEEE and Establishment of recycling network" which the author studies in cooperation with DongHua University, combined with the relevant researches home and abroad, using the technology of GIS, the dissertation studies the recycling network system of WEEE in Shanghai systematically and comprehensively with the methods of the combination of qualitative and quantitative and of the synthetic integration from qualitative to quantitative, etc.
本文作者基于与东华大学合作的上海市科委重点科研项目"电子废弃物提金技术与网络化"的子课题"电子废弃物回收网络体系研究"的基础上,结合国内外相关研究概况,基于GIS技术,采用定性与定量相结合、从定性到定量的综合集成法,对上海市电子废弃物回收网络体系的建立进行了系统和全面的研究。
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According this model, a framework of courseware authoring system based on B/S and XML also coming into being.
基于该模型,提出了基于B/S和XML的Web课件制作系统的结构架构。
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Then, two autofocus systems based on PC and DSP respectively have been designed and construct.
然后,本文用两种自动对焦系统——基于PC机的自动对焦系统和基于DSP的自动对焦系统——使数字成像自动对焦技术得以实现。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。