相波陣面 的英文怎麼說
中文拼音 [xiāngbōzhènmiàn]
相波陣面
英文
phase front- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 陣 : Ⅰ名詞1 (作戰隊伍的行列或組合方式) battle array [formation]: 布陣 deploy the troops in battle fo...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
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First, based on phased array antenna ' s mono - pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array
首先以單脈沖相控陣天線測角原理為基本理論出發點,利用相位控制的坐標分離技術,基於線陣、圓形陣等簡單形式的相控陣天線,推導了平面陣、圓柱面陣等相控陣天線由相位量化誤差引起的波束指向誤差公式。This assumption is reasonably justified in the early stages, when the wave front is not far from ground zero.
這種假定在初期階段波陣面離地面零點不遠時是相當合理的。The point at which the incident wave, reflected wave, and mach fronts meet is called the "triple point".
入射沖擊波、反射沖擊波與馬赫波波陣面匯合之點叫做「三相點。」2 rayleigy and weibull distribution ground clutter for airborne phased array radar ( apar ) general pulse signal was simulate with method of zero memory nonlinear transform
二、利用零記憶非線性變換法實現機載相控陣雷達常規脈沖情況下的瑞利分佈、韋伯爾分佈的地面雜波模擬。The higher requirement for twt is also being promoted by modern satellite communication, space communication, phase array radar and etc., from the aspect of smaller size, longer age, higher reliability and so on
現代衛星通信、空間通信、相控陣雷達等技術的發展又從小型化、高壽命、高可靠性等方面對行波管提出了更高的要求。1n thi s paper we bring forward a new p1an for array miniaturization using the p1ane phase - - contro11ed array can achieve both large covering width and narrow beamwidth
本論文提出一種小型化的方案,採用平面相控陣可以實現大的覆蓋寬度和窄波束。A optimized design of the bend is made using the high frequency simulation software. 5. the coupler and the bend cause a phase change in the wave transmitted past the coupler in the sinuous feed and also a phase change in the coupled po ~ ver
分析計算了耦合器、波導彎頭引入相位誤差對天線性能的影響,在此基礎上,採用對各個耦合器之間波導長度調節的方法,對陣面相位分佈進行補償。In order to reduce cost and complexity, digital camera manufacturers usually employ a single ccd or cmos sensor whose surface is covered with a color filter array, named as cfa. the cfa limits each sensor pixel just sampling one of the three primary color values ( red, green or blue )
為了降低數字相機的成本與體積,生產廠家通常會採用單片ccd或cmos圖像傳感器,並在其表面覆蓋一層彩色濾波陣列,也稱為cfa , cfa使每個像素只能獲得物理三基色(紅、綠、藍)其中一種分量。The " wavefront " domain decomposition method developed above is used in the division of flow field domain. the quantity of physics variables on the " subjunctive " boundary elements needs mutual communication of subdomains during the simulation
流場區域的劃分採用改進的「波陣面」區域分裂演算法, 「虛擬」邊界單元的物理量的計算由子區域之間相互通訊來完成,信息的發送方式採用「循環式」發送方式。The angle spectrum of inputting optical signals is received by the input surface of arrayed waveguides. whereas the diffraction process of light beam outputed in slab waveguide is a process of " composing frequency and generating image ". the reason that fraunhofer diffractive pattern can be gained on outputting waveguide surface is that output ends of arrayed waveguide distribute on the arch structure which leads bent phase factor to offset the quadratic phase factor in fresnel diffraction
輸入平板波導內光束的衍射過程是「分頻成譜」的過程,在陣列波導的輸入面接收到的是輸入光信息的角譜;而輸出平板波導內光束的衍射過程則是「合頻成像」的過程,正是由於陣列波導輸出口排列分佈在圓弧形結構上,其彎曲位相因子消去了菲涅耳衍射中的二次位相因子,從而在輸出波導面上能夠得到夫瑯和費衍射圖樣。With the aid of phase diagram, variations of parameters of gaussian beams have been analyzed for different initial parameters
結合相圖分析了高斯光束在不同初始條件下束寬與波陣面的變化情況。The phaseshifts from deformation of reflector are discussed. deformation of one reflector is measured. however, by using the lag of thermal deformation, the aberrations of wavefront are detected in actual optical train, which are compared with the results of calculation
討論了傳輸過程中反射鏡的熱變形產生的附加相移,實驗測量了單個反射鏡的鏡面變形,利用熱變形滯后性,測量了實際光路引起的探測光波陣面畸變,並與計算結果進行比較。The holographic wavefront recording process records the interference pattern of the object and the reference waves, and thus forms the hologram, which simultaneously records the information about the amplitude and phase of the object waves ; the holographic wavefront reconstruction, by means of the diffracted waves, can reconstruct the original object wave from the hologram illuminated by lights
全息波陣面記錄將物光和參考光以干涉條紋記錄成全息圖,此全息圖同時記錄了物光波的振幅和相位;全息波陣面重現,就是用光波照射全息圖,通過光的衍射,從全息圖中再現出原始物體的光波。So their method can be used not only for phased array radar but also for reflector antenna radar. their research shows the ? a - stap can provide good clutter - suppression performance and has many advantages
所以基於和、差波束的空時二維處理方法不僅可以用於相控陣天線雷達,也可以用於一般的反射面天線雷達。Their interest in ? a - stap stemmed from the fact that antenna engineers have excelled in the design of high performance sum and difference beam whether for phased array or for reflector antenna
人們對這種特殊的空時二維處理感興趣的原因是無論相控陣天線系統還是反射面天線系統,天線工程師都可以設計出性能很好的和、差波束。The point at which the incident wave, reflected wave, and mach fronts meet is called the " triple point "
入射沖擊波、反射沖擊波與馬赫波波陣面匯合之點叫做「三相點。 」In recent several decades, ultrasonic phased arrays had been applied to many medical specialties and nondestructive evaluation ( nde ). an ultrasonic phased array consists of multiple elements which are usually cut or etched from a single piezoelectric plate of lead zirconate titinate ( pzt ). the element thickness determines the operating frequency of the transducer
近年來,隨著科學技術的飛速發展,超聲相控陣已廣泛的應用在醫學、無損檢測等方面,所謂相控陣,就是由多個壓電陶瓷片(陣元)按一定的分佈排列,然後逐次按欲先規定的延遲時間激發,就可以實現聲波的聚焦。Sponsored by dmc - radar applied in a navy range, this dissertation focus on the low - altitude / low - angle radar target detection & tracking techniques. it contains four parts : in the first part, the models of sea - clutter and multipath propagation are studied, which affect the radar ' s detectability and tracking ability of low - altitude target seriously
結合海軍某靶場dmc相控陣雷達的研製,著重研究了海面上低空目標雷達探測和跟蹤測量的有關技術,論文分為四個部分:第一部分系統分析了海雜波與多徑傳播的建模與模擬問題。All this can be a fundament for deeper investigate phased arrays. at the same time, the concentric - ring transducers are also analyzed. it can realize point focusing on its axis
本文推出了平面陣的空間聲壓分佈表達式,並研究了平面陣的幾何尺寸對聲波聚焦效果的影響,為相控陣的進一步研究提供了理論依據。Millimeter wave single pole multiple throw switch is one of the most important device in multi - channel system, widely applied to multi - beam radar, phase array radar system, electronic warfare system, and so on
毫米波單刀多擲開關是毫米波多通道轉換的重要部件,廣泛應用於多波束雷達、相控陣雷達、電子對抗技術等方面。分享友人