With the simulation of cylindrical array, the patterns of flat top beam and cosec beam are gained. Example simulation are shown to illustrate the effectiveness of the algorithm.

通過(guò)圓柱形陣列的仿真計(jì)算得到滿足設(shè)計(jì)要求的三維平頂波束和余割波束方向圖，證明這種算法的有效性国产黄色A片免费看。

Value of the complement of the secant, called the cosecant.

正割函數(shù)的倒數(shù)欧美日韩成人片在线观看，稱為余割函數(shù)。

The value, y, of the inverse function to cosecant at argument x.

余割函數(shù)的反函數(shù)女人操女人。

With the overview of present MIMO antenna research, the thesis brings forward a new kind of polar diversity antenna array applied in MIMO base stations, which elements are planar printed dipoles. The beamforming technology is used to obtain a particular type of elevation pattern, which has square cosecant characteristic.

本文在對(duì)目前MIMO 天線領(lǐng)域的研究動(dòng)態(tài)進(jìn)行概述的基礎(chǔ)上免费无毒黄色视频，結(jié)合基站的自身特點(diǎn)，提出并實(shí)現(xiàn)了一種新型的基站極化分集波束賦形天線陣列火福利导航，其陣元為平面印刷偶極子人体一级A片黄黄黄，陣列在俯仰面形成類(lèi)似平方余割形式的方向圖分布。

A kind of best baffle-beard suitable for applications in the dual-frequency base station antenna is presented, meanwhile, we adopt the PSO algorithm to optimize the parameters affecting antenna pattern such as the phase of the elements, the space between the elements, such that the pattern of antenna can be shaped in the vertical plane （the pattern in the vertical plane has Cosecant beam in the service area）.

針對(duì)我國(guó)移動(dòng)通信頻率网站黄色a，以基站天線的雙頻工作以及陣列波束賦形為目標(biāo)黄色网站免费观看视频国产，設(shè)計(jì)了一種滿足基站天線雙頻輻射要求的最佳反射板形狀，并通過(guò)PSO全局優(yōu)化算法優(yōu)化各單元饋電相位并調(diào)整其間距以實(shí)現(xiàn)垂直面方向圖雙頻波束賦形的目的（即垂直面方向圖在所覆蓋的服務(wù)區(qū)域內(nèi)具有余割波束）人妻系列无码专区系列。

This set used a unique "cosecant squared" antenna that gave a true representation of the ground surface mapping, rather than a distorted slant-range picture. It's things like this that made life better for bombardiers.

它特有的"余割方形"天線性69式性无遮挡免费视频，就是這樣也可以讓投彈手更安全些。

The secant of the complement of a directed angle or arc.

余割有向角的余角或弧的余割

arc cosecant：反余割

反正割 arc secant | 反余割 arc cosecant | 相位 phase

反余割 arc cosecant圓周：circumference

反正割 arc secant | 反余割 arc cosecant圓周 circumference | 周長(zhǎng) perimeter

cosec：余割

cose 聊天 | cosec 余割 | cosecant 余割

cosecant curve：余割曲線

cosecant 余割 | cosecant curve 余割曲線 | coset 傍系

hyperbolic cosecant：雙曲余割=>雙曲線余割関數(shù)

hyperbolic coordinates 雙曲坐標(biāo) | hyperbolic cosecant 雙曲余割=>雙曲線余割関數(shù) | hyperbolic cosine 雙曲線余弦=>雙曲線余弦関數(shù),ハイパボリックコサイン

Cosekans hyperbolicus hyperbolic cosecant：雙曲余割

Cosekans cosecant 余割 | Cosekans hyperbolicus hyperbolic cosecant 雙曲余割 | Cosinus cosine 余弦

cosech：雙曲余割

cosecant 余割 | cosech 雙曲余割 | cosedimentation 同時(shí)沉積作用

csch：雙曲余割

csc 余割 | csch 雙曲余割 | cumsum 元素累計(jì)和

csch：雙曲線余割

csc :余割 | csch :雙曲線余割 | exp :指數(shù)

csch：雙曲余割函數(shù)

csc/(), 反余割函數(shù) | csch(), 雙曲余割函數(shù) | csch/(),反雙曲余割函數(shù)