pointing control 中文意思是什麼
pointing control
解釋
指向控制-
In order to make the airborne radar instruction control antenna pointing correctly overcome the influence caused by maneuvering of carrier aircraft, and airspace stabilization algorithm is adopted in the airborne radar control circuit
摘要為使機載雷達指令克服載機機動而正確控制天線指向，在機載雷達控制迴路中加入了空域穩定計算。 -
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。 -
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。 -
Combines with a concrete subject, this paper, composed of seven chapers, makes a deep analysis on theory and experiment of key bolt fastening of engine. the first chapter presents the theory of tightening technology of the available bolt the second chapter gives a narrating about tighten technology availably in survey. pointing that the nature of torque control is axis preload
本文結合一具體課題，第一章敘述了可控螺栓擰緊技術的理論，第二章綜述了可控擰緊技術，提出了扭矩控制研究的實質是控制螺栓的軸向預緊力。 -
Abstract : this paper introduces the global stiffness, strength and stability of bracing structure with long span, pointing out that the control of bracing structure ' s deflection and elastic module can make the arch ring fit the line of pressure and arch axis and can guarantee the stability of bridge structure
文摘:本文介紹了大跨度支撐結構的整體剛度、強度和穩定性，控制支撐的撓度和彈性變量可使拱圈符合設計壓力線與拱軸線，保證橋梁結構的穩定性。 -
Hydroelectric power exploitation can reduce sediment disposal, lengthen life of power plants in lower stream, control stream, better water quality, and reduce contamination etc. considering the structure of power of sichuan province and pointing out its six problems in power development, this thesis comes up with sustainale development strategy of sichuan hydroelectric power exploitation, that is, prefentially exploit large scale hydropower plant which has good water - adapting capability, comprehensively use water resource, try to reduce cost caused by drowning, stimulate rotating exploitation, well deal with settlement of people in hydroproject construction, and alleviate contamination
論述水電開發在減緩泥沙淤積、延長下游水電站壽命、調控水流、提高供水量、改善水質、提供清潔能源、減少環境污染等方面對長江上游生態屏障建設的作用。本文研究分析了四川水電開發的可持續發展戰略，首先對四川省電力結構現狀進行了分析，指出目前四川電力發展存在的六個主要問題，從優先開發具有良好調節性能的大型水電站、綜合利用好水資源，盡最大可能減少水庫淹沒損失，積極推進流域梯級滾動綜合開發，處理好水庫移民關系，減輕對環境的不利影響等六個方面論述了水電開發的可持續發展戰略。 -
This method yielded very promising results on precision pointing tasks, and is also applicable to the slewing task. pointing errors of less than 0. 05 degrees were achievable with off - line nominal control computation
該演算法用於飛行器的精點控制可獲得滿意的效果，也可用於完成飛行器的旋轉控制任務，例如該演算法用於飛行器的精點控制可使點誤差小於0 . 05度。 -
Abstract : expounding the important stvategics sigmificance to ensure food safety. pointing out five countermensures to ensure china food safety. the pst is to increase food and improve degree of food self - sufficiency. the 2 " rd is to develop agricultural reserve resource. the 3 " rd is to save food. the 4 " th is to strengthen food reserve. the 5 " th is to control population
文摘:在闡述保障糧食安全戰略意義的基礎上，提出了我國保障糧食安全的五點對策：一是積極持續增產糧食，不斷提高糧食自給率；二是開發農業后備資源；三是節約糧食；四是搞好糧食儲備；五是嚴格控制人口增長。 -
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。 -
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。 -
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。 -
A study on the pointing control of a nc system
數控系統的點動控制 -
Mouse control the pointing direction, press and hold the left mouse button xu li, hitting the left mouse button loosened
鼠標控制瞄準方向，按住鼠標左鍵蓄力，松開鼠標左鍵擊球。 -
To simultaneously solve the problems of the robustness, decoupling control and high accuracy tracking control at the high tracking rate in antenna control system, a new nonlinear antenna tracking - pointing control system for user - satellite was proposed based on a unique nonlinear active disturbance rejection control method
摘要為同時解決用戶衛星天線控制系統的魯棒性、解耦控制和高跟蹤速率下的高精度跟蹤控制等問題，採用非線性自抗擾控制方法，提出了一種新型的用戶衛星天線跟蹤指向控制系統。 -
Based on chinese tracking and data relay satellite ( ctdrs ) in the future, the antenna pointing control and complex control theory of user satellite are studied deeply in this dissertation, which is funded by the improve item of dept. of astronautic engineering and mechanics ? “ the teaching demonstration of antenna pointing control system in tdrss ”. the main contents of this dissertation are consisted of the following parts : firstly, dynamics equation is derived using lagrange equation for user satellite, so as the kinetics equations of user satellite at the same time are expressed in the form with matrix differential equations that is suitable for attitude control system design and analysis
本學位論文結合航空宇航科學與技術學科研究生教學基地實驗室建設項目「中繼系統星間鏈路天線指向控制系統教學與演示實驗」 ，以我國跟蹤與數據中繼衛星系統為背景，對某型號用戶星星間鏈路天線指向跟蹤控制和復合控制理論進行深入的研究，研究內容主要包括以下幾個方面: 1 .利用lagrange方程建立了用戶星的動力學方程，同時推導了運動學方程，並將這組動力學方程以矩陣微分方程形式表示，使之適用於姿態控制系統的設計和分析。 -
The antenna pointing control accuracy can satisfy the design specification and it is validated to be appropriate and effective. at last, the designed user satellites complex control system is simulated based on xpc target which is used for hardware - in - the - loop simulation
4 .基於xpc實時模擬平臺，充分利用實驗室條件，搭建了用戶星天線樣機在迴路中的半物理模擬實驗，將天線指向控制系統和星體姿態穩定控制系統聯合起來，組成中繼衛星復合控制系統進行近一步的驗證。 -
Next, the characteristics of the user satellites complex control system is that the high accuracy antenna pointing control is realized on the basis of ensuring the high accuracy attitude stabilization control of the satellite body
3 .用戶星復合控制系統的特點是在保證衛星平臺高精度姿態穩定控制的前提下，實現星間鏈路天線的高精度指向控制。 -
This control method effectively solves the problems of the antenna tracking - pointing control
該控制方法有效地解決了天線跟蹤指向控制問題。 -
The simulation and validation are conducted for the antenna pointing control system designed before
最後對設計的天線指向控制系統進行了模擬驗證。 -
Then, the tracking laws for the user satellites antenna pointing to the tdrs which is fit to the engineering application are derived, and the basic concepts of the user satellites antenna pointing control project are described in detail
2 .推導出了適合於工程應用的星間鏈路天線跟蹤中繼衛星的跟蹤規律，詳細的論述了星間鏈路天線指向控制策略。
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