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It takesthe weighted average of the L2 norm of the difference of the observation and thesolution of the system and the L2 norm of the difference of conormal derivativeat the different sides of the interface for every subdomain as cost functional andthe smooth coefficients of the subproblem and the value of solution of the originalproblem at interface as identification parameters;Using the property of continu-ous functional defined on compact set,the existence of the optimal solution of theidentification problem is proved;The necessary conditions of optimality charac-terized by the system equation,the adjoit equation and the variational inequalitysimultaneously are given by introducing the conception ofdifferential andadjoit variable;An algorithm is devised and its flow graph is given.

其次,针对分片光滑动力系统的特征,结合正演过程的区域分解算法,建立了分片光滑系统的分解区域参数辨识模型,该模型以子区域上解的实测值与计算值之差的L2范数和界面两侧的通量差的L2范数的加权平均作目标泛函,各子问题的光滑系数及界面上真解的值为待辨识参量;利用紧致集上连续泛函的性质,证明了子区域上参数辨识问题最优辨识参量的存在性;引入微分的概念,借助伴随变量,给出了由系统方程,伴随方程和变分不等式共同表征的最优性必要条件;根据此必要条件设计了算法,给出了算法的程序框图。

The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和贡献如下:●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法,即首先求出多路信号之间的互相关,进而得到互功率谱密度矩阵,然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响,并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来,最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数,利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集;●提出了一种确定FH信号检测门限的策略,该策略不仅使得检测门限能够通过理论计算得到,而且还显著地抑制了非跳频信号的干扰,从而能有效地检测出FH信号;●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法,即首先利用宽带空间谱测向技术得到接收信号的DOA,然后采用宽带波束形成技术对特定方向进行空间滤波,实现多个信号的分离,最后分别提出了两种FH信号的盲检测和参数盲估计方法,第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号,第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号;●将空间插值的概念和宽带波束形成技术结合起来,提出了一种基于频域处理的宽带恒定束宽的波束形成方法。

The paper induces and analyzes research method of the tooth, including Method line of the tooth theory,Envlopment theory, Camus theory, Circling cluster theory and so on.Based on the past theories,the new measure to deduce the chain wheel tooth equation of roller chain at high speed,Circling cluster and envlopment theory,is proposed by analyzing basic concept of equidistant curve and Willis theory.Following the presentation of drawing lessons from traditional roller chainof the change of stanza line distance. A new type of roller chain at high speed is given in the paper.The paper studies deeply structural characteristics, the change of stanza line distance,separation between plank and bore and so on.According to design requst of roller chain at high speed and the study ofH_y--V_0 tooth chain,the impossibility that Quasi-conjugage engagement theory isrealized by the engagement of roller chain at high speed from the aspect of theory is decribed.

作者综述了高速滚子链国内外研究现状,并进行了以下研究工作:归纳分析了齿形法线法理论、包络法理论、卡姆士定理、圆族法理论等齿形研究方法,在此基础上,结合齿形啮合基本定律,分析了等距曲线的基本概念,提出了一种推导高速滚子链链轮齿廓方程的新方法—圆族包络法;在借鉴普通变节距滚子链的基础上,本文提出了一种新型的高速滚子链链条,深入研究了高速滚子链链条结构特性及其变节距、板孔中心分离等特性。

According to this understanding, this thesis tries to modify PSO algorithm in order to improve its quality of solutions. The main approches include: using uniform design to ensure the uniform distribution of initial particles in the design space; adding mutation operation to increase the diversity of particles; decreasing the maximum velocity limitation and the velocity inertia automatically to balance the local and the global search efforts; developing a new approach to treat the design variables exceeding the bounds; using extensive local searches to escape local minimum. The overall effect of these approaches can yield better results for most test problems.

有鉴於此,本文针对粒子群演化法之流程参考相关文献并稍作改变,使得粒子群演算法在结果的收敛上更具优势,本文的主要改进的方法包括:应用均匀设计的概念使得初始的粒子可以更均匀地分布在空间上;利用突变增加粒子之间的差异性与多样性;利用适当控制的最大速度限制及惯性权重控制,达到区域搜寻与全域搜寻的效果;应用新的边界处理机制处理设计变数超过上、下限的问题;利用区域强化搜寻针对粒子附近地区,再作进一步的搜索以得到更佳之结果;将各种方法综合后配合粒子群演算法使用,可以得到不错的结果。

Although neurology types don't use those left-brain/right-brain models as they once did to understand brain function, they're still useful for us in understanding our strengths and preferences.

虽然神经学上现在用的左右脑模式和曾用的理解大脑功能的模式不同,这一概念在帮助了解我们的强项和喜好上依旧有用。

Although neurology types dont use those left-brain/right-brain models as they once did to understand brain function, theyre still useful for us in understanding our strengths and preferences.

虽然神经学上现在用的左右脑模式和曾用的理解大脑功能的模式不同,这一概念在帮助了解我们的强项和喜好上依旧有用。

Based on the analysis of existed fuzzy integral theories, the notions of the Choquet upper and lower fuzzy integral and rough interval numbers' integral form were proposed; the rough properties of Choquet fuzzy integral and an information fusion method based on rough Choquet fuzzy integral were given.

在分析现有模糊积分理论的基础上,提出了Choquet上、下模糊积分的概念和粗糙区间数的积分形式,给出了Choquet模糊积分的粗糙特性,建立了基于粗糙Choquet模糊积分形式和信息融合方法。

The model partitions the direction relations with smooth transition regions, which accords with percipience on direction concept description.

该模型使得方向关系的划分上有个平滑的过渡区,在方向概念的表达上更符合人的认知。

Taking the active network as a research task, the input accessibility, the Coates graph of matrix and graph transmission etc are used to analyze the relation between reducibility of the coefficient matrix of the state equation and the electric separability of the network or the electric accessibility of the network for the first time, acquiring sufficient and necessary conditions that coefficient matrix of the state equation is reducible. Network Graph Theory, Matrix Theory and System Theory over F etc are used to derive the structural controllability criterion of the passive network over F for the first time. Then according to these theoretic results, the structural controllability problems of the active network over F are studied, acquiring several structural controllability conclusions of the active network.

率先将状态方程的输入可达、矩阵的Coates图、流图传输系数等概念和方法引入到对F上有源电网络的研究,研究了网络状态方程的系数矩阵的可约性与网络电气可断性或电气可达之间的关系,研究了F上有源电网络的能控性问题,获得了状态方程的系数矩阵可约的充分必要条件、F上有源电网络系统的结构能控性判据等新的结论。

Quality and state are the result of different ways of scanning, and they reveal different sides,and form different images.Different understanding of images will result in semantic changes in adjectives of quality and state naturally,and demonstrate some opposites like those between diffusion and stipulation,permanence and temporariness, and relativity and objectivity.

张国宪(ZOO6a)从认知上阐述了性质和状态的特质,认为二者在概念内涵上所反映的情景是相同的,差异只表现在所勾勒的侧面,无疑这种不同导源于扫描方式。

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推荐网络例句

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。