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- 与 跳上 相关的网络例句 [注:此内容来源于网络,仅供参考]
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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。
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Chapter 1 gives the background,current research process of relatedproblems and summarizes this thesis\'s work.In chapter 2,we study the Brownian motion with holding and jumping on the boundary.We use the resolvent method to obtain the infinitesimal generator because the domain of the infinitesimal generator is essentially the same as the range of the resolvent.Knowledge of this range and of the differential operator determines uniquely the infinitesimal generator.Since the semigroup generated by the DHJ is not strongly continuous,to use the nice property of strongly continuous semigroup in analytic theory,in chapter 3 we show that the dual is strongly continuous and derive ergodicity through spectral radius formulas and finally obtain the ergodic theorem by duality. In chapter 4,we discuss a class of a more general process---one dimensional Feller diffusion proposed by W.Feller in 1954.The Feller diffusion allows the possibility of jumps from boundary to boundary,not only from boundary to the interior.We give the stationary distribution of this process.
具体地,本文的结构如下:第一章给出了问题产生的背景,研究现状及本文的主要工作;第二章研究了在边界上逗留后随机跳的布朗运动,我(来源:3dABC论文网www.abclunwen.com)们用预解算子的方法得到其无穷小生成元,因为无穷小生成元的定义域本质上就是预解算子的值域,知道这个值域和微分算子形式就能唯一地决定无穷小生成元;由于DHJ过程产生的半群不是强连续的,为利用强连续半群的一些漂亮性质,在第三章中我们证明其对偶半群是强连续的,然后由谱半径公式得到遍历性并且最后由对偶得到遍历定理;第四章讨论了Feller在1954年引入的更广的一类过程----一维Feller扩散过程,Feller扩散过程允许有从边界到边界的跳发生,即不仅仅局限于从边界到内部的跳,在这一章中,我们给出了一维Feller扩散过程的平稳分布;在第五章,我们讨论了一些相关的问题,给出了DHJ过程对应的PDE问题及特征值与收敛速度的关系。
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In fifth chapter,as applications of the existence theorem of〓-optimalcoupling operator for the jump processes,the estimate of the varied expontialconvergence rate for the jump processes and the existence of an order-preservingMarkov coupling for the jump processes are investigated,where,the obtained theexistence theorem of an order-preserving Markov coupling is a general theorem onPolish space endowed with semiorder,it includes the results that existence theoremon countable state apace endowed with total order or finite state space endow withsemiorder have been obtained by the internal and external mathematicians in recentten years.
第五章作为跳过程〓最优耦合算子存在性定理的应用,讨论了跳过程各种指数收敛速度的估计和保序Markov耦合的存在性。其中保序Markov耦合存在定理是具有偏序关系波兰空间上的跳过程最一般的定理,它包括了近10年来国内外对具有全序关系可数状态空间或具有偏序关系有限状态空间上的跳过程关于保序Markov耦合存在定理的研究成果。
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Square dot 5% point targejia, in the four corners phase business card printing and membership card making pressure, 5% point to expand capacity, on the transition from the hiberarchy, 5% point form a fairly obvious dot-jump; circular to about 70% to produce himself, then also imprint-jump, just look at the level of the jump, we need it to be put off; chain-shaped dot is divided into two time point respectively at 25% and 75% of the two places at once, each producing a smaller level.
方不神网不背在5不败不背处四角相搭,在制卡和会员卡制息不张力功用下,5不败不背扩不小量最不小,从条理过渡上看,5不败不背处不神不败一不主较为澄辉的级跳;圆不神网不背给到约70%爆发搭边,这时同样会爆发压印级跳,只是在条理上看,它的级跳处向后提后;链不神网不背不合两不主搭角,不合别在25%和75%两处,各爆发一不主小一些的级跳。
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And her daughter can get the piano keys to chat, and then go left, jump armor available, if we do not jump to the left take the hit BOSS, the focus of this strange change in his will, with the corresponding color of magic to hit it, hit Duct End later, at the same time the left side of the castle church door opened, and then move into the right part of the road, the first door below, and then come to the bottom, jump up the right side of the first scene, the far right can be破墙320 ore, and then be able to return to the road and walk up to the Secretary for Education and experience, and his words can have only the sewer, while chest is 250 ore, and finally take the right side of the door, where there are leave, the old lady to take the jack-o'-lantern Baozhu, we can see the true path, to shield jump available, the most right is the BOSS, is a wolf, the attention of multi-running, over BOSS, be cross badge, now go to the castle Chapel, and
和女儿聊天可以得到钢琴键,然后往左走,跳下去可得盔甲,如果不跳下去继续往左走就打BOSS,此怪重点在他会变色,用相应颜色的魔法才能打到它,打完以后得到风管,同时城堡礼拜堂左边的门打开了,继续前进,进入右边岔路部分后,先到下面的门,再走到最下面,右边第一场景往上跳,最右边破墙可以得到320个矿石,然后就可以回到岔路了,往上走可以遇到司教,和他说话可以得只有下水道,途中宝箱是250个矿石,最后走右边的门,这里的路有假,带上老太太给的鬼火宝珠,可以看到真实道路,往跳下可得盾牌,最右边就是BOSS,是一只狼,注意多跑动,打完BOSS,得到十字徽章,现在去城堡礼拜堂了
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I just took the bus on the spur of the moment.
我是一时兴起才跳上公车的。
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Wife 1.0 also comes with an irritating pop-up called MotherInLaw, which can't be turned off.
妻子 1.0 也带刺激的跳上叫做 MotherInLaw 受到的影响,不能被关掉。
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Take a look at this. A 22-year-old man in Akron, Ohio is jumping his way to fame, one car at a time.
请看这个,一名俄亥俄州阿克伦城的22岁男子正在跳上他的成名之路,一次一辆汽车。
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Your Siamese cat jumped onto my knee.
Miao 你的暹罗猫跳上我的膝。
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Sample: Karajan jumps into a cab, and when the driver asks,"Where to?"
比如说这个:卡拉扬跳上一辆出租,司机问道,您要去哪儿呢?
- 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。