陣增益 的英文怎麼說

中文拼音 [zhènzēng]
陣增益 英文
array gain
  • : 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...
  • : Ⅰ名詞1 (好處) benefit; profit; advantage 2 (姓氏) a surname Ⅱ形容詞(有益的) beneficialⅢ動詞...
  1. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器,而掌握光與介質的相互作用理論是研究激光器的關鍵,採用拉姆半經典理論為主,在密度矩理論的基礎上,推導環形諧振腔中描述he - ne氣體介質原子運動的光學布洛赫方程,運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組,在此基礎上,運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ,對激光陀螺中的介質色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究,並且運用全量子理論,對激光工作原理進行分析,得出二能級系統單模輻射場的光子數密度分佈,得出激光場的光子統計分佈,模擬激光場的動態建立過程。
  2. The control algorithm of closed - loop gain shaping when the controlled object is not square matrix in the simo system is developed in this thesis

    本文提出了單輸入多輸出( simo )系統即被控對象為非方情況下的閉環成形控制演算法。
  3. The application of the control algorithm to the siso system, the unstable process and the mimo system whose controlled object is square matrix has been affirmed fully

    閉環成形演算法在siso系統、非穩定過程和被控對象為方的mimo系統中的應用已被充分肯定。
  4. The characters of this antenna lie in three points : using yagi - uda antenna to obtain antenna gain through the radial direction ; making full use of the space of the base station along the z - axis direction to get array gain ; arranging the antenna array properly to achieve pattern diversity in azimuth plane

    其特點集中體現在三個方面:在天線徑向通過八木天線的形式獲得;充分利用基站空間在z向組成列獲取;利用開關八木天線方向圖可重構的特性,通過合理的布局,在方位面內實現角度分集。
  5. With the developing of new switches such as photoconductive switch and sos ( solid opening switch ), both high power and high gain can be got by the uwb antenna array

    隨著各種新型開關如大功率的光導開關的研究成功,超寬帶天線列將成為實現高功率、高的有效途徑。
  6. Modern sonar systems generally use hydrophone arrays and advanced signal processing techniques to improve their detection and localization abilities, whereas beamforming plays an important role. as it is known, the conventional beamforming approach provides limited array gains and low interference suppression abilities, and cannot resolve multi - targets distributed within a small spatial region

    但是,傳統的波束形成方式所提供的陣增益有限,對干擾的抑制能力不強,且不能分辨空間小角域內的多個目標,影響了聲吶系統整體性能的發揮。
  7. Smart antenna has been widely researched in communication and signal processing, the adaptive beamforming algorithm is the key technique of smart antenna. it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals. it is an effective way to realize the optimal receiving of the interesting signals

    智能天線技術是目前通信和信號處理等領域的研究熱點,自適應波束形成演算法的研究是智能天線的一個關鍵技術,它能夠自適應地控制天線方向圖在用戶信號方向產生高窄波束,在干擾信號方向產生較深的零陷,是實現用戶信號最佳接收的有效方法。
  8. Abstract : this paper considers the decentralized stabilization problem via local state feedback control laws for a class of large - scale linear discrete - time systems with delay interconnections. a sufficient condition for decentralized stabilizability is derived and is expressed as a system of linear matrix inequalities. furthermore, the problem of designing a decentralized state feedback control law with smaller feedback gain parameters is formulated as a convex optimization problem, and latter can be solved by using existing efficient convex optimization techniques. the obtained controller enables the closed - loop systems to be not only stable, but also of any prescribed stability degree

    文摘:用一組線性矩不等式給出一類線性離散時滯大系統分散能鎮定的一個充分條件,進而,通過建立和求解一個凸優化問題,提出了具有較小反饋參數的分散穩定化狀態反饋控制律的設計方法.所得到的控制器不僅使得閉環系統是穩定的,而且還可以使得閉環系統狀態具有給定的衰減度
  9. Test of gain coefficient in full aperture of a new multi - segment - amplifier

    新型列式片狀放大器全口徑實驗研究
  10. A novel broadband and high - gain microstrip reflect array antenna with variable polarization

    一種新型寬頻帶高的變極化微帶反射天線
  11. The smart antenna, which is adapted in the wireless mobile communication system, in fact, forms an antenna with a high gain. thus communication in all directions can be proceeded, then base station antenna coverage, system capacity and service quality are improved, also inter - symbol interferes and multi - access interfere are reduced. the space division multiple access ( sdma ) is introduced, and users can be distinct from each other through their special location

    在無線移動通信系統中採用智能天線技術,實際上是通過數字信號處理,使天線為每個用戶自適應地進行波束賦形,相當于為每個用戶形成了一個可跟蹤它的高天線,從而即可以進行全方位通信,也可以用較小的發射功率覆蓋相同的范圍以及提高系統容量和業務質量、降低用戶間的碼間干擾和多址干擾。
  12. Finally, based on the approximation capability of gengeralized multilinear fuzzy logic systems ( gmfls ), a new scheme of decentralized adaptive fuzzy controllers for a class of multiple - input - multiple - output nonlinear systems with a triangular matrix function control structure is proposed

    最後針對一類具有下三角形矩函數控制的多變量非線性系統,並利用廣義多線性模糊邏輯系統的逼近能力,提出了一種分散自適應模糊控制器設計的新方案。
  13. Firstly, based on a modified lyapunov function and the approximation capability of the first type fuzzy systems, two new design schemes of decentralized adaptive fuzzy controller for two class of similar multivariable nonlinear continuous systems with a triangular matrix function control structure is proposed in this paper, respectively

    本文首先對兩類結構相似的具有下三角形矩函數控制的多變量非線性連續系統,基於一種修改的李亞普諾夫函數,並利用第一類模糊系統(即具有線性可調參數的模糊系統)的逼近能力,分別提出一種分散自適應模糊控制器設計的方案。
  14. Among the decomposed synthesis reasoning sources, the field intensities were defined by dependency and classification methods based on the concept of positive region, by discernibility matrix method based on the rate of appearance, and by mutual information, condition entropy and mutual information gain rate methods based on information theory

    在分解得到的綜合源中,基於正域的概念,用依賴度和分類質量方法定義了場強,根據屬性出現頻率, ?用差別矩定義了場強,並結合信息論,通過互信息、條件熵和互信息率定義了場強。
  15. At the same time, an automatic gain control and floating threshold setting intelligent detecting and processing method based on linear ccd is proposed, and the disposal and transform of ccd video signal is carried out by hardware and software

    提出了一種基於線ccd的自動控制和浮動閾值的智能信號檢測與處理方法,用硬體和軟體實現了對ccd視頻信號的進行處理和變換。
  16. In this paper, we study inversionless lasing of frequency up - conversion in an open v - type system with incoherent pump. making theoretical analysis and numerical calculation by density - matrix equations of motion, we derive the conditions for the onset of lwi and discuss the effects of the parameters of the system, the detuning of driving field and probe field on the gain, and discuss nonlinear effect in the frequency up - conversion regime. we also give stability and transient analysis

    本論文研究了具有非相干泵浦的開放v型系統頻率上轉換無粒子數反轉激光,利用密度矩運動方程,通過理論分析和數值計算,得出該系統產生無粒子數反轉激光的條件,討論系統各參數的變化和驅動場與探測場的失諧對激光、色散和粒子數差的影響,還討論了頻率上轉換區域的非線性效應,分析了的穩定性及系統的瞬態演化過程。
  17. A broadband high array gain beamforming scheme is developed, based on the narrowband optimal array gain processing procedure

    基於小間隔透聲圓的窄帶最佳陣增益處理,提出了一種寬帶高波束形成方案。
  18. In this paper, we present the sufficient and necessary condition for the sum of a identity matrix and a generalized cyclic matrix is nonsingular, and obtain the formal representation of the relative gain array of the sum matrix

    本文給出了單位矩與廣義循環矩的和矩的非奇異的充要條件,得到了這樣和矩的相對列的顯示表達式。
  19. 2. based on the multivariable frequency control theory, a multi - variable computer - aided design software is designed using visual basic 6. 0 after decoupling the controller model, the precompensation matrix, the dynamic compensation matrix and the feedback matrix are obtained

    二、以多變量頻率域控制理論為基礎,結合現代控制理論對該數學模型進行解耦設計,利用vb6開發了一個多變量系統的輔助設計軟體,得到它的預補償,動態補償和反饋
  20. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算,初步建立了一臺實驗系統;採用abcd矩法結合collins公式計算了四通式單光柵展寬器的展寬量,並模擬了相關參數對展寬比的影響,對實驗具有指導意義;評價了再生放大器和多通放大器的優缺點,對放大過程中通常忽略的放大自發輻射現象( ase )進行了分析,並提出了相應的解決方法;針對放大過程中出現的窄化和飽和現象,對輸入種子脈沖提出了一種新的分段頻率調制函數,實現了對窄化效應和飽和效應的共同抑制;提出了系統的材料(包括放大介質和光路中的普通介質)正是融合高階色散的來源。
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