折
- 与 折 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
For rock samples under uniaxial compression test, its failure forms include friction slippage, self-similar propagation and crankle expansion of microcracks.
对于单轴压缩的岩石试件,其破坏型式主要是微裂纹的摩擦滑移、自相似平面扩展和弯折扩展。
-
I don't give a fuck for craps, personal judgements, shiny prides and means to ends.
我去他妈的那些屁话,去他妈的人生攻击,去他妈的光鲜外表和不折手段。
-
The hinge of the gate needs oiling; it creak s every time it's opened
门的折叶需要上油了,每次开时,它都发出嘎嘎的声音。
-
In addition to a vast expanse of snow-white, with nothing, and even can not find a crease.
除了茫茫一片雪白,什么也没有,连一个皱折也找不到。
-
This is because it does the whole horizon line thin on each individual crease and bend.
这是因为它每个折痕都正确运用了我们上面讲到的要点(折射的角度、颜色、光源等)。
-
Past Richmond bridge at the doorstep of the office of Reuben J Dodd, solicitor, agent for the Patriotic Insurance Company, an elderly female about to enter changed her plan and retracing her steps by King's windows smiled credulously on the representative of His Majesty.
跨过里奇蒙桥之后,在爱国保险公司代理人吕便。杰。多德律师事务所门口台阶上,一位上了年纪的妇女正要走进去,却又改变了主意。她沿着王记商号的橱窗折回来,对国王陛下的代表投以轻信的微笑。
-
To provide film and printing plate boundaries, crop marks, registration marks the hinge-line and so on all markup, the page will be able to make a single or batch, also has to be placed automatically or manually move the control function climing.
能不求应胶片和印版的边界线、裁切线、折页线和套准线等所有标志,页面不妨独个或成批不天举行安插,还具有被迫或手动爬移把持功用。
-
Auxiliry operations the following main factors dangersous chromatic number, in each of the 印张 auxiliry tag (overprinter marks, crop and fold marks, a book in a manner worthy of the fold, registration marks, color separation line, in a manner worthy of the book mark, identification number), the control bar (across the entire width of 印张-cards and membership cards to make the control bars, non-business card printing and membership card making part of the exposure control area), and so on.
补助性工序成不合次给包含印弛每不背的色数、补助性标志(套印标志、裁切标志、折叠标志、书帖折标、套准标志、书帖线、色版标志、标志号码)、把持条(不竖跨印弛合座宽度的制卡和会员卡制息把持条、否制卡和会员卡制息部位上的晒版把持区)等。
-
In this paper two-segment jibs of tower cranes with irregular guy arrangements and having various cross sectional shapes under the action of spaceforces were investigated, with due consideration to the effect of bending.
本文对任意布置、各种断面和腹杆形式的塔式起重机折臂杆,考虑结构空间受力状态以及初弯曲的影响,用矩阵位移法计算在结构自重、风荷载、制动力和吊重荷载作用下的臂杆内力、变形及其整体稳定。
-
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。
- 推荐网络例句
-
I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""
客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。
-
Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.
由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。
-
Do not 'inflate' your achievements and/or qualifications or skills .
不要 '夸大' 你的业绩或成果,条件或者技能。