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Carry this work, the author tries to optimize craft with the system program union rises, achieve the goal that craft and construction of system improve at the same time thereby.

通过本工作,作者试图把工艺优化和系统规划结合起来,从而达到工艺和系统结构同时改进的目的。

The economic management of foundry technology must rise union of craft, character, cost, management, take the trial-produce of the product and feedback seriously, raise quality of enterprise.

铸造工艺的经济治理必须把工艺、品质、成本、治理结合起来,重视产品的试制和反馈,提高企业素质。

He enunciated three basic maxims :nulla poena sine lega ,nulla poena sine crimine nullan crimen sine poena legali , His integration of the prevailing political liberalism with penal policy was simple enough :only one who violates the liberty guaranteed by the social contract and safeguarded by penal law commits a crime .

他阐明了三条基本格言;"法无明文者不罚""无法以为罪者不罚"和'无法定刑罚者不为罪他把当时盛行的政治自由主义同刑事政策结合起来的思想是相当简括的。只有那些侵犯了由社会契约所保障,由刑法所保护的自由的人们,才犯了罪。

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。

Use cross-fertilization to bring ideas and concepts from one field or specialty to another.

将不同领域的专业知识结合起来,可产生灵感与概念。

The combination of Forbidden City's mode and "emperor's power and prestige"is a new way of thinking in crossly research of esthetics and culture.

这种把紫禁城的模式与"天子之威"结合起来的研究,对美学与文化的交叉研究,开辟了一种新的研究思路。

And moral education is a key point to the cul...

而德育教育是直接关系到高校培养和造就什么样的人的关键所在,所以本文试着将后现代主义和高校德育结合起来研究。

Specially nice when it's cutely ruffled and combined with daft faces : D

同意!特别是削尖的发梢和他那呆脸结合起来尤其好看 XDDDDD

Dauntless, not afraid of failure setbacks, the spirit of hard struggle to achieve their goals.

不畏艰险,不怕失败挫折,艰苦奋斗的精神结合起来,为实现自己的目标而努力。

Integrating ontologicaldifference with the difference describing in structuralism liguistics,Derridadesigned Grammatology in order to emphasize undecidability and maintain contextis the condition of decidability.

将本体论差异和结构主义语言学所倡导的差异结合起来,德里达构想出书写语言学。没有差异的同一是同语反复,差异是同一的前提。书写语言学反对绝对决定的同一,强调同一的不可决定性,主张只在具体的语境、情境之中,才有决定可言。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力