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The study has focused on: 1 The research background and the current state of the power measurement were analyzed systematically, and then wavelet-based power measurement algorithm was certified feasible for astable signals; 2 We developed a new method of RMS and power measurement based on Dmeyer wavelet. After that three other wavelet measurement approaches were compared with Dmeyer wavelet-based measurement approach. Then the impact on measurement errors of amplitude frequency property and energy leakage of wavelet filter banks were deeply researched, and some measures were proposed to reduce it; 3 We developed a new strategy of power measurement algorithm based on lifting wavelet, which had calculation advantage compared with the first wavelet, so that it was more suitable for the realization of hardware; 4 The running system of wavelet-based power measurement algorithm based on DSP was proposed, and then it was realized on ICETEK-VC5416-A EVM board; 5 Existing problems and the further research direction of wavelet-based power sub-band measurement algorithm was discussed.
本文对基于小波变换的功率测量算法展开深入的分析研究,主要内容有:1)系统地分析了功率分解测量的研究背景、国内外的研究现状,并从能量守恒的角度验证了小波功率分频带测量算法在非平稳信号条件下的可行性;2)首次提出了Dmeyer小波变换有效值与功率的测量方法,进而通过对该方法与3种已经提出的小波测量方法的对比分析,深入研究了小波滤波器组的幅频特性和能量泄漏特性对测量误差的影响,并针对电网谐波的特点提出了减小影响的相关措施;3)首次提出了二代小波功率测量算法,对比一代小波功率分频带测量算法,它大大减少了算法实现的运算量及内存的需求量,从而更适合于硬件的实时实现;4)提出了小波功率分频带测量算法的DSP实现方案,并在ICETEK-VC5416-A EVM板上进行了实现;5)探讨了小波功率分频带测量算法目前仍存在的问题,并提出了进一步的研究方向。
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Call…in question 对……提出质疑:No one has ever called my honesty in question.
没有人对我的诚实提出质疑。
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The thesis studies the difference between GWSs composition and traditional workflow applications, proposes the implement mechanism and technical architecture of GWSs composition and defines the reference model of GWSs composition platform, which provide holistic framework and top-level guidance for studying dynamic GWSs composition technology, designing GWSs composition platform, and implementing representative composite service applications.2、Theories and methods of composite process modeling and process analysis. This thesis proposes a meta-model of Geo-spatial Web services composition process defining from two aspects, i.e. process and resource. According to the process definition meta-model, we propose a new Geo-spatial Web services composition Process/Resource model based on extended WF-net, which effectively resolves the problems on uncertain activity option and dynamic variation of service in composite process model. A notion with regard to soundness of process model is proposed from three aspects, i.e. the structural correctness of process model, validity of data link and validity of resource. The notion of soundness definitely gives a dividing line on correctness of composite GWS process. This thesis analyzes sufficient and essential terms of soundness, and studies compositional property of WSCP/R-net models which provides an effective method to construct a soundness WSCP/R-net model. According to WSCP/R-net, the thesis proposes composition algebra and studies the properties of it. Based on the composition algebra, 6 kinds of composite process reduction rules are induced to optimize the process.3、Geo-spatial Web service QoS model and its application architecture. This thesis proposes an extendable GWS QoS model from three aspects, i.e. Geo-spatial Web Service itself, networking conditions and service consumer which can be used to distinguish GWSs with overlapping or identical functionality. We work over the QoS evaluation methods of composite GWS process which can be used to guide the execution, monitor and service selection of composition process. Aming at some disadvantages in traditional Web service discovery model for its lacking of QoS supporting, this thesis proposes a new service discovery model SDMQ supporting QoS constraints.4、Technologies of composite service executing. SSPL, a new composite service process language, is defined to overcome the disadvantages of existing composite services process languages which can not adapt to the dynamic variation of Geo-spatial Web Services. An algorithm is described to translate WSCP/R-net model into SSPL. The thesis studies the model of dynamic services selection with QoS global optimization, presenting an algorithm GODSS to resolve dynamic services selection with QoS global optimization in GWSs Composition.5、Design and implement experimental system and representative applications. According to the research findings presented above, we design and implement an experimental system and construct two representative applications to show that our achievements are effective and practical.
针对当前空间信息服务聚合研究中存在的若干不足,本文重点在基于工作流的空间信息服务聚合框架、空间信息服务聚合流程建模和分析技术、空间信息服务QoS模型及应用体系以及空间信息服务聚合流程执行等几个方面进行深入研究,主要工作和创新点包括:1、基于工作流的空间信息服务动态聚合框架:研究了空间信息服务动态聚合和传统工作流应用的不同,在此基础上提出了基于工作流技术的空间信息服务动态聚合实现机制、技术体系和参考模型,为研究空间信息服务聚合的关键技术、开发服务聚合支撑平台以及在此基础上构造特定的空间信息服务聚合应用提供了总体框架和顶层指导。2、空间信息服务聚合流程建模和分析技术:首先基于动态服务聚合流程建模的需求和空间信息服务动态变化的应用实际,从服务聚合的过程维和资源维出发定义了服务聚合流程定义元模型;与之相对应,对基本的WF-net进行扩展,提出服务聚合流程/资源网作为空间信息服务聚合流程的形式化描述模型,有效解决了现有的基于基本Petri网和工作流网的服务聚合建模方法所不能解决的不确定路径选择和服务的动态变化性问题;从流程结构正确性、数据依赖有效性和资源实现有效性三个方面提出了WSCP/R-net健壮性的概念,明确界定了聚合流程正确性的标准,并对WSCP/R-net模型的健壮性分析方法和WSCP/R-net模型的组合特性进行了研究;提出了空间信息服务聚合代数算子并对其性质进行了研究,在此基础上提出了6种聚合流程约简规则,从而可达到优化聚合流程、提高聚合流程执行效率的目的。3、空间信息服务QoS模型和应用体系:从服务本身、网络环境和服务消费者三个层次出发,提出了一个可扩展的空间信息服务QoS模型GSQM,实现了对空间信息服务的度量和评价,并对GSQM不同质量要素信息的客观、公正采集方法进行了研究;研究了空间信息服务聚合流程QoS评价方法,有效支持了空间信息服务聚合流程的执行、监控以及服务选择等操作;针对目前的服务发现模型仅支持服务功能性描述、不能有效满足空间信息服务应用需求的现状,提出了一种新的支持QoS约束的服务发现模型SDMQ,并对模型的实现框架进行了研究。4、空间信息服务聚合流程执行技术:针对现有的服务聚合流程描述语言不能有效满足空间信息服务动态聚合流程描述的特点,基于BPEL4WS提出了一种新的空间信息服务聚合流程描述语言SSPL;研究了满足健壮性要求的WSCP/R-net模型向SSPL的转换算法,在此基础上可以满足用户无显式编码来实现空间信息服务聚合应用的目的;研究了服务动态选择QoS全局优化模型,并在此基础上提出了一种解决服务动态选择QoS全局优化问题的实现算法GODSS.5、基于论文研究成果,设计实现了"空间信息服务聚合实验系统",并构建了"矿产资源评价"和"城市消防应急响应"两个典型应用案例,对论文所述模型、方法的可行性和有效性进行了验证。
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Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.
在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器,对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计,建立了器件的三维实体模型以及两维降阶模型,对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计,同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程,开展了一系列重要工艺步骤的单项工艺试验,对工艺流程与工艺参数进行了优化,针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析,并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合,建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。
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The information integrated pattern based on PDM/PLM in the course ofmanufacture is put forward. Under the constraints of building CAPP platform, thearchitecture of CAPP platform is established. The models of decision making andfunction for process planning are given. Then the development means of CAPP basedSmarTeam are extracted.3. The structure of modular product life cycle is established. Toward the divisionand planning of the General Modules oriented product family, theCAD/CAPP integrated model of flexible module based on feature and CAD/CAPPmapping model based on process planning match board are set up. The keytechnologies of Solidworks/SmarTeam/CAPP integration are studies.4. From the point of view of process match board and step match board, theprocess of creating to process planning match board is studied. As an example, themachining process planning of up beam of hydraulic press machines is used tointroduce the establishment of process planning match board by means of inferencebased on expert knowledge. The organize model about the process planning matchboard oriented product family is brought forward.5. The multi-decision methods of CAPP system based on analytic hierarchy aregiven.. On the basis of uniform data model, the sub-machining process planning ofpart is auto-created by means of analytic hierarchy, The step decision methods basedon AHP is put forward.6. For the design/manufacture information in the course of product life cycle, thetree structure based on Object-Oriented and static model based UML are founded. Themethod of establishing design/manufacture information management system isbrought forward. The commercial PLM software—SmarTeam is regarded asdevelopment platform, on basis of which, the design/manufacture informationmanagement system is built, and the multi-view mapping technique ofdesign/manufacture information model is studies.7. A computer-aided CAPP platform based on PDM/PLM is founded, and itsstructure, function, work flow is illustrated. Some example of the system areintroduced.
阐述课题提出的目的和意义,明确了本文研究的主要内容。2、提出基于PDM/PLM的制造过程信息化集成模式;在平台式CAPP系统的设计约束模型基础上,构建了平台式CAPP系统的体系结构;并给出工艺决策模型和功能模型;最后提出基于SmarTeam的CAPP开发模式和实现策略。3、建立模块化产品生命周期模型的组织结构;针对面向产品族的广义模块的划分和规划方法,建立基于特征的柔性模块CAD/CAPP集成模型及基于工艺模板的CAD/CAPP映射模型;研究Solidworks/SmarTeam/CAPP集成的关键技术。4、从工序模板和工步模板的角度研究了工艺模板的创建过程;以液压机上梁模块机加工为例,采用基于专家知识的推理技术实现了工艺模板的创成;提出了面向产品族的工艺模板分层结构树的组织模式。5、提出基于分层规划的多模式工艺决策流程;在统一数据模型的基础上,从特征层和零件层分层规划,实现了零件加工子工艺的自动创成;提出基于AHP的工步排序决策方法。6、针对产品生命周期中的设计/制造信息,建立了面向对象的类树结构和基于UML的静态结构模型;提出基于PDM/PLM软件的设计/制造信息管理系统的构建方法;以商品化PLM软件SmarTeam作为开发平台,开发了基于SmarTeam的设计/制造信息管理原型系统;研究设计/制造信息模型多视图映射机制。7、开发了基于PDM/PLM的平台式CAPP原型系统,构建了系统的功能模型,并对系统的主要功能进行说明,给出系统的运行实例。
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On the design of algorithms, a novel exact hierarchical delay analysis method for general circuits is proposed; based on the sensitization theorem for sequential circuits, an exact minimizing clocking method is proposed; based on Boolean process, a waveform simulation method considering interconnecting delay for logic circuit and a parallel waveform simulation method are proposed; a new method that transforms bit-level waveform polynomial to word-level polynomial model is proposed; a multiple valued synthesis algorithm based on multiple valued Boolean process and a wire-centered delay synthesis policy are proposed, in which timing planning, floorplanning, wire planning and optimal clock skew in early design are considered; a two-layers channel routing method for minimizing crosstalk under grid mode is proposed; based on the transition numbers theorems for waveform polynomial, a new method for generation of test with noise effects is proposed.
算法设计方面,提出了一种精确的通用电路层次化延时分析方法;基于时序电路的敏化定理提出时序电路最小时钟周期精确确定方法;提出基于Boolean过程论的考虑互连延迟的逻辑电路波形模拟方法,在分析了波形模拟适合并行化基础上,进一步提出一种并行波形模拟算法;提出一种将位级电路波形多项式描述转化成字级多项式描述的新方法;提出一种基于多值Boolean过程的多值电路综合算法以及一种将前期设计定时规划、前期设计的布局规划和线网结构化方法及低偏移的时钟分配等技术相结合的面向互连延时的综合策略;提出一种串绕最小化的网格模式下的双层通道布线方法;从波形多项式描述跳变数的定理出发提出了一种考虑噪声效应的测试生成新方法。
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At the end of the thesis,practically and realisticallysummarizing the studies concerning this topic,the author believes to put forward thenew viewpoints in following aspects,i.e.the"theory of three-phase"for thedevelopment of victimology;the trends of the worldwide development of the redress ofthe victims'rights;the new method to protect the victims,which balances theprotection between the victims and inflictors to resume the victims'rights by setting upthe protective measures such as the national relief and social supporting system for thevictims,which rarely connects with their rights and interests directly;the necessity ofthe redress of the victims'rights in 6 aspects;the deficiencies on the issue of theredress of the victims'rights in the aspects of academic research and legislation;theelementary reflects on the constitutional foundation for the protection of the victims;the two-side analysis on the regulations for the protection of victims in new penal law;the suggestion to establish the system for investigation,statistics and proclamation ofvictimization;the design to consummate the rights and redress of the victims inappealing procedures;the assumption to establish the social supporting system of thevictims in China,and soon.
在论文的最后,实事求是地总结了自己关于本课题的研究,认为在以下若干方面提出了个人的新见解。提出了我国被害人学发展的"三阶段说";提出了世界范围内犯罪被害人权利救济的发展趋势;提出了通过建立对犯罪被害人的国家补偿制度和社会支援体系这样的与加害人权益不大发生直接联系的犯罪被害人保护措施,来实现犯罪被害人的被害恢复,以求得加害人与被害人权利保护平衡的犯罪被害人权利保护方式的新思路;从六个方面提出了我国犯罪被害人权利救济的必要性;从理论研究和立法两个方面指出了我国在犯罪被害人权利救济问题上的欠缺点,其中对我国犯罪被害人的理论研究作了反思,对犯罪被害人保护的宪法依据作了初步的探讨,对新刑事诉讼法关于犯罪被害人的保护的规定作了一分为二的分析;提出了建立我国的犯罪被害调查、统计和公告制度的建议;提出了为了防止被害人的第二次被害,而完善犯罪被害人在诉讼程序中的权利与救济的方案;提出了构建我国犯罪被害人社会支援体系的设想。等等。
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It analyses the essential factors, structure, environment as well as functions of high-tech corporation system and compares the similarities and differences between high-tech corporation system and traditional corporation system; it analyses characteristics in each stage of high-tech corporation lifecycle as well as management roots which lead to the declination of high-tech corporation and researches into the similarities and differences between high-tech corporation lifecycle and other lifecycles, including traditional corporation lifecycle, industry lifecycle, product lifecycle and ecology lifecycle; it studies functional coupling in each stage of high-tech corporation lifecycle and puts forward ways to realize internal coupling of high-tech corporation system and external environment coupling; based on fundamental concepts of dissipative structure, it summarizes six inherent laws of system evolution and on the basis of those laws it advances six principles of high-tech corporation lifecycle management, it poses four sequential parameters of high-tech corporation system, analyses coordination and competition between them and then it advanced four principles of high-tech corporation management; it researches into various cycles in high-tech corporation and puts forward five measures of high-tech corporation management from the point of hypercycle theory; it studies the relations between carious innovation of high-tech corporation innovation system and sets up models of innovation motive forces and resistances, after that it analyses the alternation laws of innovation motive forces and resistances in each stage of high-tech corporation lifecycle, puts forward some measures to strengthen motive forces and lessen resistances and then from the angle of dissipative structure theory, it researches into relevant questions of high-tech corporation innovation management; it studies the location, identification, cultivation, cultivation and protection of high-tech corporation core competence and researches into the key elements of core competence management in each stage of lifecycle and then from the angle of synergetic, it discusses several questions of high-tech corporation core competence management; it studies seven common characteristics of successful high-tech corporation culture and puts forward the ways and measures to cultivate and innovate high-tech corporation culture after that it researches into the characteristics of corporation culture in each stage of lifecycle and discusses relevant questions of high-tech corporation culture management from the point of hypercycle theory; it studies interplay of high-tech corporation system and environment and researches into the development and management of high-tech corporation ecology system after that it analyses the construction and disintegration of high-tech corporation strategic alliance.
剖析了高新技术企业系统的要素、结构、环境与功能,比较了高新技术企业系统与一般企业系统的异同;剖析了高新技术企业在生命周期各阶段的特点及衰退的管理根源,探讨了高新技术企业生命周期与一般企业生命周期、产业生命周期,产品生命周期和生物生命周期的异同;研究了高新技术企业生命周期各阶段的功能耦合,提出了实现高新技术企业系统内部耦合及系统与外部环境耦合的途径;以耗散结构理论的基本概念为基础,总结归纳出系统演化的六大内在规律,据此提出了高新技术企业生命周期管理的六个原则;提出了高新技术企业系统的四个序参量,剖析了生命周期各阶段序参量的协同与竞争,进而提出了高新技术企业管理的四大原则;研究了高新技术企业中的各种循环,从超循环理论的角度提出了高新技术企业管理的五大措施;研究了高新技术企业创新系统中各种创新的关系,建立了创新动力和创新阻力模型,剖析了生命周期各阶段创新动力与阻力的变化规律,提出了增强创新动力与减小创新阻力的措施,从耗散结构理论的角度研究了高新技术企业创新管理的相关问题;研究了高新技术企业核心竞争力的定位、识别、培养及保护,剖析了生命周期各阶段核心竞争力管理的要点,从协同理论的角度研究了高新技术企业的核心竞争力管理的几个问题;剖析了成功的高新技术企业文化的七个共同特点,提出了培养和创新高新技术企业文化的途径及措施,研究了生命周期各阶段企业文化的特征,从超循环理论的角度探讨了高新技术企业文化管理的相关问题;研究了高新技术企业系统与环境的交互作用,探讨了高新技术企业生态系统的开拓与管理,剖析了高新技术企业战略联盟的组建与解体。
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Itanalyses the essential factors, structure, environment as well as functions of high-techcorporation system and compares the similarities and differences between high-tech corporationsystem and traditional corporation system; it analyses characteristics in each stage of-high-techcorporation lifecycle as well as management roots which lead to the declination of high-techcorporation and researches into the similarities and differences between high-tech corporationlifecycle and other lifecycles, including traditional corporation lifecycle, industry lifecycle,product lifecycle and ecology lifecycle; it studies functional coupling in each stage of high-techcorporation lifecycle and puts forward ways to realize internal coupling of high-tech corporationsystem and external environment coupling; based on fundamental concepts of dissipativestructure, it summarizes six inherent laws of system evolution and on the basis of those laws itadvances six principles of high-tech corporation lifecycle management; it poses four sequentialparameters of high-tech corporation system, analyses coordinfition and competition between themand then it advanced four principles of high-tech corporation management; it researches intovarious cycles in high-tech corporation and puts forward five measures of high-tech corporationmanagement from the point of hypercycle theory; it studies the relations between cariousinnovation of high-tech corporation innovation system and sets up models of innovation motiveforces and resistances, after that it analyses the alternation laws of innovation motive forces andresistances in each stage of high-tech corporation lifecycle, puts forward some measures tostrengthen motive forces and lessen resistances and then from the angle of dissipative structuretheory, it researches into relevant questions of high-tech corporation innovation management; itstudies the location, identification, cultivation, cultivation and protection of high-tech corporationcore competence and researches into the key elements of core competence management in eachstage of lifecycle and then from the angle of synergetic, it discusses several questions ofhigh-tech corporation core competence management; it studies seven common characteristics ofsuccessful high-tech corporation culture and puts forward the ways and measures to cultivate andinnovate high-tech corporation culture after that it researches into the characteristics ofcorporation culture in each stage of lifecycle and discusses relevant questions of high-techcorporation culture management from the point of hypercycle theory;' it studies interplay ofhigh-tech corporation system and environment and researches into the development andmanagement of high-tech corporation ecology system after that it analyses the construction anddisintegration of high4ech corporation strategic alliance.
剖析了高新技术企业系统的要素、结构、环境与功能,比较了高新技术企业系统与一般企业系统的异同;剖析了高新技术企业在生命周期各阶段的特点及衰退的管理根源,探讨了高新技术企业生命周期与一般企业生命周期、产业生命周期,产品生命周期和生物生命周期的异同;研究了高新技术企业生命周期各阶段的功能耦合,提出了实现高新技术企业系统内部耦合及系统与外部环境耦合的途径:以耗散结构理论的基本概念为基础,总结归纳出系统演化的六大内在规律,据此提出了高新技术企业生命周期管理的六个原则;提出了高新技术企业系统的四个序参量,剖析了生命周期各阶段序参量的协同与竞争,进而提出了高新技术企业管理的四大原则;研究了高新技术企业中的各种循环,从超循环理论的角度提出了高新技术企业管理的五大措施;研究了高新技术企业创新系统中各种创新的关系,建立了创新动力和创新阻力模型,剖析了生命周期各阶段创新动力与阻力的变化规律,提出了增强创新动力与减小创新阻力的措施,从耗散结构理论的角度研究了高新技术企业创新管理的相关问题;研究了高新技术企业核心竞争力的定位、识别、培养及保护,剖析了生命周期各阶段核心竞争力管理的要点,从协同理论的角度研究了高新技术企业的核心竞争力管理的几个问题;剖析了成功的高新技术企业文化的七个共同特点,提出了培养和创新高新技术企业文化的途径及措施,研究了生命周期各阶段企业文化的特征,从超循环理论的角度探讨了高新技术企业文化管理的相关问题;研究了高新技术企业系统与环境的交互作用,探讨了高新技术企业生态系统的开拓与管理,剖析了高新技术企业战略联盟的组建与解体。
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At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.
本文在广泛的、深入研究的基础上,应用多种信号处理手段来分析处理数据,同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨,本文进行了以下几项工作:(1)提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略;(2)提出了基于WVD分布的连续撞击响应信号的分离策略;(3)提出了基于对数谱拟合方法的钢—钢撞击响应求解模型;(4)提出了基于波形分析的非正常燃烧振动信号的诊断模型;(5)提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型;(6)提出了基于小波近似的喷油正时信号中燃烧位置的自动定位;(7)提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略;(8)提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。