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Hence we first propose a globally optimized random search algorithm and prove its asymptotic global convergence; then to improve its convergence velocity and reduce implementation complexity, we propose a practical sub-optimal random search algorithm and analyze its implementation complexity.

为此本文首先给出了一种用于OFDM符号估计的全局最优随机搜索方法,并证明了其渐进全局收敛特性;同时为了改进全局最优的随机搜索算法的收敛速度和实现复杂度,提出了一种可实现的次优的随机搜索算法,并结合实现分析了所提的次优随机算法的计算复杂度。

While it is usually impractical for the marshallate to measure blade weight directly by weighing the sword before the basket hilt, cross, or pommel weight is attached, the linear density of the blade (its weight divided by its length) can be estimated fairly easily by weighing the finished sword, locating the point on the blade at which it balances, and measuring the distance from the point of balance to the tip, from the point of balance to the hilt, and from the point of balance to the point where the additional weight (the basket hilt, cross, or cross plus pommel weight) is attached to the blade.

而这通常是不切实际的为marshallate来衡量的刀身Weight直接由称重剑前一篮子的Hilt ,交叉,或pommel重量是重视,线性密度的刀片可估计相当容易称重成品剑,定位点的叶片在它的结余,以及测量距离平衡点,以尖端性,从平衡点到极限和从平衡点以点的额外重量(篮子的Hilt ,交叉,或跨加pommel重量)是连接到刀片。

For example, we cannot copy an unknown state exactly because of "the no-cloning theorem"(no-deleting theorem), which is known as one of the most significant differences between classical and quantum information. Therefore to get to know what we can and cannot do in QIS or in quantum physics becomes an important and interesting problem. Particularly, in quantum communication and quantum cryptography, many novel schemes are based on the fact that nonorthogonal states cannot be discriminated determinately.

例如,经典信息中,编码状态是可以精确复制、区分的;而在量子信息中,由于叠加性的存在,使得非正交态不可区分,量子态不可复制、删除等;故而以往既成的观念都被打破,探讨在量子信息的框架下编码信息的估计、物理可实现的操作,以及这些量子体系在外界通过物理方法进行识别过程中的差异,是量子信息学、乃至物理学中的重要也很基本的问题。

Because this colourful door takes a lot of categories that attribute pornographic picture, I am very so careful when releasing a picture, just choose the heat with those absorbing regard asing that do not expose, reckon as to picture origin I do not say everybody also knows, just released go up a hour, quantity of a money order receipt to be signed and returned to sender is achieved 200 many, because set the regulation that the reply can see,basically be, be less than a few days, the member of forum registers a quantity to also soar, I am glad very, released a few paragraphs of video again then, this everybody is interested more, the effect is more apparent of course, did Seo in the light of this keyword plus me, in Baidu the search of a few main keywords is ranked is before a few, it is when I am cock-a-hoop, because the site that good friend of my a stationmaster tells me him placed the photograph of Xxx to be sealed, I saw me be put again fast half month, the government is busy provide disaster relief, do not have doctrinairism to meet, the effect also was achieved now, it is moment whole body and retreated, I immediately the special subject this kind is whole take out, escape one disaster

由于这次的艳门照很多都属于色情图片的范畴,所以我在发布图片的时候很谨慎,只是选取那些不暴露的作为吸引人的热点,至于图片来源估计我不说大家也都知道,刚发布上去一个小时,回帖量就达到200多个,主要是因为设置了回复可看的规则,不到几天,论坛的会员注册量也大增,我很是兴奋,接着又发布了几段视频,这个大家更感爱好,效果当然更明显了,再加上我针对这个要害词做了seo,在百度几个主要要害词的搜索排名都是前几位,就在我自得洋洋的时候,我的一个站长好朋友告诉我他的站点因为放置xxx的照片被封了,我再看看我都放了快半个月了,政府忙着救灾,没空理会,现在效果也达到了,是时候全身而退了,我就马上把这一类的专题全部去掉,躲过一劫从这次的热门事件当中我体会到几点,和大家共同探究

Second,a new estimator called generalized rootpower estimator of regression coefficients in growth curve model is obtained.For the newestimator,its superiority over the LS estimator and the root power estimator,and its admissibilityare proved.Two methods,two kinds of arithmetic of choosing the generalized root powerparameters are introduced.A demonstrative practical example is provided.

对增长曲线模型中的回归系数矩阵提出了一种新的估计——广义根方估计,并证明了通过广义根方偏参数的适当选取可使得该估计在均方误差和均方误差矩阵的意义下优于已有的最小二乘估计估计和根方估计;及证明了广义根方估计是可容许估计;还给出了选取广义根方偏参数的两种方法、算法和应用实例。

The major achievement of this paper is: Based on characteristics of the traffic data distribution, execute pattern recognition operations on traffic condition on two dimensions by clustering, then use BP neural network to describe and forecast traffic flow aiming at each pattern. Making use of classic flow-occupancy inverse "V" model, implement polynomial fitting using least-squares algorithm and statistics method on flow curves to detect outliers which are proved to be not accord with practice through the actual implement, then use the moving average model to recorrect the outliers and absent. Make correlation analysis on muti-direction flow queues of the intersection and ones of upriver intersections, choose flow queue with high correlation as assistant one to improve the error tolerance of the prediction system, at the same time we can use the method to give an estimation of flow in intersection with out sensors. We design and implement an SOA(Service-Oriented Architecture)-based UTDD(urban traffic data mining development) with high expansibility and performance, which implement unified management and call of the data-mining application though defining a XML-based description of data-mining process and a common interface to call data-mining process, finally we build traffic flow prediction application model on UTDD.

根据交通流量数据分布的特征,提出基于k-means的二次聚类方法,对交通流量在流量大小和时间上进行模式划分,进而对各个交通流模式进行基于BP神经网络的描述和预测,从而提高模型对流量预测的精度; 2)根据流量/时间占有率倒&V&字形曲线分布模型,提出基于最小二乘法的三次多项式曲线拟合和统计方法的异常检测方法,实际应用表明该方法能够有效识别异常数据,然后根据移动平均算法对异常数据进行修正; 3)基于序列相关性分析,分别对预测方向的交通流量数据序列、上游路口相关序列以及预测路口其它各个方向上的交通流量序列进行分析,选择相似性流量序列,作为辅助序列提供其他没有检测器路口的流量估计; 4)设计和实现了基于SOA(Service-Oriented Achitecture)的高性能、可扩展的智能交通数据挖掘系统UTDD,该系统通过定义基于XML的数据挖掘过程描述和通用的过程模型接口,实现数据挖掘应用的统一管理和调用,最后在UTDD上建立了基于路口流量预测的应用模型。

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法,给出了导频图案,通过仿真实验表明,该算法与理想的信道状态信息曲线非常接近,信噪比差距约在2dB左右,并且在快衰落条件下具有较好的稳定性,其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点,论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统,模拟了整个系统的信号流程,进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能,并根据各种不同的条件:例如高斯噪声、多径衰落、有无保护间隔等,对系统的误码特性进行了评估,为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导,提出了以256点IFFT/FFT为核心和以512点IFFT/FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案,它们在参数选取和性能指标上有所差异,均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置,针对本设计系统的应用环境和系统硬件的性能速率,提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡,结合模拟前端搭建数字中频平台,设计了基带处理的DSP软件模块并进行系统调试,基本实现了一套完整的OFDM调制解调方案。

The sixth chapter will discuss the initial alignment of the Marine SINS theoretically. First, the error characters of initial alignment will be analysed, then, a new two-position alignment method together with the realization of the estimation of the gyroscopes' random constant drifts will be presented.

第四部分从理论上着重讨论了舰载捷联式惯导系统的初始对准问题,对初始对准的误差特性进行了较深入的分析,提出了可在初始对准的同时完成对陀螺仪随机常值漂移估计的双位置对准方法,并对该方法进行了理论分析,可行性分析和仿真计算分析。

The main difficulty in maintaining the low-flying, right before the target stopped before there are some mountains, trees also more than the flying height, waiting for the alarm, flying low over the tree would die a hurry, here is a pattern even distracted skills tree from the woods and trees around the gap between the wearing, wearing a back end, failed several times, the requirements of high technology is,豁出去later, and is not even a few fighter planes like you play, the beginning fly, warning a short while, and soon the hills, two aircraft from put a red 4 missiles, missile thought more terrible, the result was even easy to flash, I saw a missile fly in front of the explosion really fun, in fact, the missile is a good hide, and more attention after the perspective to observe the missile position, when the missile away from you, almost 100 distance of 100 -200 m,(their estimate of the distance from there anyway) who has risen sharply and optional, you can play to stimulate the rapid decline in almost a sudden sharp rise in the ground, of course, elections are the rapid turn right turn left, air giant slalom, flip aircraft line, multi-练练, the computer is the point of missile小意思, nothing after playing air combat, interesting ah ~~~~ even the highest record was 28 to avoid a meeting, including surface-to-air missiles, the computer told me to fly by the tail I am thrown to the ground the trees the mountains 11 miles or a word and the computer novice and more air play than the simple low wear and more trees to the

难度主要在保持低空飞行,快到目标前有一些高山挡住,树还特别多,飞的比树高,等着报警把,飞的比树低想死着急,这里偶愣是用花样技巧,从树林里树与树的缝隙之间穿了过来,最后又穿了回去,失败几次,要求技术实在是高,后来豁出去了,不就是几架战斗机偶就跟你们玩玩,一开始就高飞,不一会报警了,快到山头, 2架飞机冲过来放了4导弹,原以为导弹多可怕,结果,被偶轻松闪过,看见导弹飞到我前面爆炸真好玩,其实导弹是很好躲的,注意多用后视角,观察导弹位置,当导弹离你差不多100-200米百距离,(自己估计的反正有段距离)可选者急速上升,还可以玩刺激急速下降快到地面时突然急速上升,当然选者急速右转左转,空中大回转,翻转飞机都行,多练练,电脑那点导弹完全是小意思,以后没事耍空战,有意思啊~~~~偶最高纪录是1次避了28枚导弹包括地对空,电脑跟我机尾飞被我甩在地上山上树上海里11次总之新手还是和电脑多玩玩空战比起超低空穿树简单的多的去了

To understand why, we recommend that you read the excellent analysis of property-casualty competitive dynamics done by Barbara Stewart of Chubb Corp.

保险产业的情况持续依我们先前所预期般地发展,综合比率(定义请参阅第37页)从1979年的100.6 升高到1980年估计的103.5,可预期的是1981到1982年这个趋势将继续持续下去,业界的核保损失将向上攀升,想要了解个中原因的人,我建议你读读Chubb保险集团的年报,其对产险业竞争态势所作的精譬分析,虽然报告不见得令人振奋,但绝对中肯。

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推荐网络例句

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。

A caret is a mark place below a line to show where something should be put in .

脱字符是加在一行文字下面的符号,表示此处应加入一些东西。