指向精度 的英文怎麼說

中文拼音 [zhǐxiàngjīngdù]
指向精度 英文
pointimg accuracy
  • 指 : 指構詞成分。
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 指向 : directing; sensing; sense of orientation
  • 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
  1. This testing instrument ' s successful development, not only did we know fairly well before shooting range ball firing, but it can instruct manufacture of artillery, make assure the quality of every artillery, save a great deal fund

    坦克炮管靜態定向精度測試系統的研製成功，不但可以在靶場實彈射擊前做到心中有數，而且能夠指導火炮的生產，保證每門火炮的質量，節約大量資金。
  2. After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control

    在指向反射鏡的擺動控制方面，採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機，並採用感應同步器作為角度測量元件，運用軸角轉換器ad2s80a進行角度和速度的輸出，採用技術成熟的pid控制方案，進行速度和位置雙閉環控制，以實現指向反射鏡轉動速度的平穩性和位置的精確性。
  3. The other - type female writing, which appeared at the end of 20th century, bragging about keeping a record of events of the new mankind and pointing to fashion, mainly described the different class life style of contemporary young people, and showed the young and the middle aged monobasic existence state of shanghai, guangzhou, etc ; and to a certain extent, reflected material, spirit and culture state at end of the century of our country under the linguistic context of globalization

    摘要「另類」女性創作產生於二十世紀末，以「新人類記事」為標榜，以「前衛」為指向，主要描寫了當代青年「另類」生活方式，展示了當代上海、廣州等大都市中青年一代的生存狀態，在一定程度上反映了全球化語境下我國大都市世紀末的物質、精神和文化狀況。
  4. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上，就各個晶片幾何參數對指向性指標（主瓣寬度、旁瓣幅度、消除柵瓣） 、聲壓幅值、陣元振動模式、陣元間互輻射、有效檢測區域、精確控制能力、近場長度等方面的影響進行了論述，並在綜合各方面影響的基礎上，提出了晶片幾何參數優化設計的原則和方法，編寫了設計程序和界面。
  5. Through the above researches, such conclusions were drawn that in the course of fitting the semivariogram of the yearly annual mean rice water sensitivity index in yunnan, the fitting precision of ordinary kriging spherecial model is better than others ; range at the direction of 80. 5 degree is outstanding than others ; as for the precision of interpolation, ordinary kriging spherecial model is higher than others

    研究表明：雲南水稻多年平均水分敏感指標變異函數以普通克里金球狀模型擬合最優、 80 . 5度方向變程最大、插值模型以普通克里金球狀模型插值精度較高。
  6. The process of growing ktp crystal of high quality and low conductivity was studied. it was pointed out that many factors such as the uniformity of temperature distribution in the furnace, the accuracy of temperature control, the quality and direction of seed crystal and the speed of temperature drop all had an important influence on the quality of ktp crystal

    研究了生長高光學質量、低電導率ktp晶體的工藝過程，指出晶體生長爐溫度場的均勻性、控溫精度、籽晶的質量和定向以及降溫速度的快慢對晶體的光學質量有著重要的影響。
  7. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。
  8. To increase the bearing accuracy of amplitude - comparison, the multi - channel system was chosen, the angle of reaching of moving antenna pattern serial was estimated from the frequency domain using the phase - delay estimating method, and at the same time, the selection of antenna, quantization of signal and touch switches were optimized in concrete engineering practice, and so the requirement of the index was satisfied

    為提高比幅測向的精度，選用多通道體制，採取相位延時估計法從頻域來估算移動天線方向圖系列的達到角，同時在具體的工程實現上對天線選取、信號的量化、去摸開關等進行優化，從而滿足指標要求。
  9. Focusing on the tactical index of ew system - bearing accuracy, this article makes deep - through analysis, comparison and study of the theory basis for traditional direction finding method. a 16 - channel monopulse amplitude - comparison direction finding method and new phase - delay estimating method has been proposed to use, through computer ' s analog computation and relative measures in actual engineering practices, the bearing accuracy of traditional method has been increased and the service requirement of the ew weapon system and adaptability of equipment satisfied

    本文圍繞著電子戰武器系統的戰術技術指標?測向精度，對傳統的測向方法的理論基礎進行了深入的分析、比較和研究，提出了採用16通道單脈沖比幅測向體制和新的相位延時估算方法，通過計算機的模擬摸擬計算，以及在實際的工程實現中採取的相關措施，解決了採用傳統的測向方法提高測向精度，滿足電子戰武器系統的戰術技術指標要求和裝備的適裝性。
  10. Finally, attitude stabilization control of the satellite and pointing precision of the payload are researched in the phase of infrared camera tracking object

    第三，在紅外相機跟蹤目標階段，研究了星本體的姿態穩定控制以及有效載荷的指向精度問題。
  11. Tpvm is a kind of random phase feeding method, which imports noise an d decreases the accuracy greatly. the effects of scpfm and sccpfm are better, especially the latter

    二可能值法是一種隨機饋相法，引入了噪聲，反而使相控陣天線的波束指向精度大為降低。
  12. Then, the capacities of round - off method, two probable value method ( tpvm ), shift and compensate phase feeding method ( scpfm ) and shift compare and compensate phase feeding method ( sccpfm ), are compared in improving the accuracy of beam pointing

    接著，通過模擬實例比較了舍尾法、二可能值法、遞推補償饋相法、遞推比較補償饋相法等幾種提高波束指向精度方法的優劣。
  13. The key for phased array antennas with good functions is the use of controllable phase shifters. however, phase quantization errors affect the accuracy of phased array antenna beam pointing badly, which is mainly researched here

    其中可控數字移相器的使用，是相控陣天線優越性能實現的關鍵，但由此引入的相位量化誤差，嚴重影響了相控陣天線的波束指向精度。
  14. Method for improving the beam - steering accuracy of phased array antenna

    提高相控陣天線波束指向精度的方法
  15. The antenna pointing control is open loop control without feedback. the antenna pointing errors due to antenna tracking motion and satellite attitude adjusting ( trusting ) were analyzed, as well as the influence of damping, tacking velocity and trusting time

    文章分析了天線作跟蹤運動和星體作姿態調整時，對星體姿態控制精度和天線的指向精度影響，同時分析了阻尼、跟蹤速度、噴氣脈沖寬度等因素變化對動力耦合程度的影響。
  16. A multiloop antenna pointing controller has been designed while three feedforward schemes are used in this control design. the simulation results show that the antenna pointing control system can improve the precision of the attitude angle and the attitude angle rate, and the antenna can slew to the neighborhood of tdrs fast, search and then track tdrs

    在設計好的天線跟蹤指向控制系統基礎上，採用前饋+反饋的復合控制策略設計了復合控制器，模擬結果表明設計的天線指向控制系統能夠較好的提高星體的姿態穩定度和控制精度，天線能夠快速回掃至中繼衛星附近並進行跟蹤，天線指向精度滿足設計要求，表明了所設計的天線指向控制系統的合理性和有效性。
  17. Nevertheless, some manned flight mission requires the spacecraft has high pointing and stabilizing precision. so, it needs us to quantitatively analyze the astronautic disturbances, so as to evaluate flight mission and guide or improve spacecraft system design especially the attitude control system design

    有的載人飛行任務需要航天器具有很高的指向精度和穩定度，這就需要對航天員的擾動進行定量分析，以便對飛行任務進行評估並能指導或改進航天器系統設計特別是姿態控制系統的設計。
  18. Along with the development of the aerospace technology, the next generation of spacecraft will have an unprecedented degree of autonomy and pointing accuracy

    隨著航天技術的發展，新一代航天器將具有空前的自主能力和指向精度。
  19. The small astronomical satellite has demands on both pointing accuracy and attitude maneuverability, so this thesis modeled the attitude control subsystem based on reaction wheels. under the fine precision pointing mode, a pd control law and a variable structure ( vs ) control law were studied respectively, and the simulation validated that vs control is more effective under fine precision pointing mode. furthermore, the vs controller for rapid large - angle maneuver was also designed

    2 ） svom衛星同時對指向精度和姿態機動性有著很高的要求，因此本文建立了基於反作用飛輪的svom衛星姿態控制系統模型，在高精度慣性定向三軸穩定模式下分別設計了pd控制律和變結構控制律，通過模擬驗證了變結構控制對于svom衛星的有效性，並基於變結構控制研究了svom衛星快速大角度機動的方法。
  20. For ka - band communication antenna, several classes of different satellite weight were considered and the critic first frequency of antenna system was given

    為滿足ka頻段通訊天線的指向精度指標，文中針對不同質量的衛星平臺，計算了對天線系統的最小剛度要求。
分享友人
分享到 Line

分享到臉書