穩定衛星 的英文怎麼說
中文拼音 [wěndìngwèixīng]
穩定衛星
英文
stability satellite- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 衛 : Ⅰ動詞(保衛) defend; guard; protect Ⅱ名詞1 (周朝國名) wei a state in the zhou dynasty2 (姓氏...
- 星 : 名詞1 (夜晚天空中閃爍發光的天體) star 2 [天文學] (宇宙間能發射光或反射光的天體) heavenly body...
- 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
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The motion carriers such as the automobile, trains, war vessels, the plane and so on, are in flux by their position and azimuth, if want kepting satellitic message and taking over satellitic signal, must adopt the platform system of tenaclous tracking satellite antenna
汽車、火車、艦船、飛機等運動載體的位置和姿態不斷的在變化,要保持與衛星的通訊聯系和接收衛星視頻等信號,就必須採用衛星天線穩定跟蹤平臺系統。Through the reaserch of the paper, a satellite transmission and television signal incepting system using stabilization platform which is used on the moving carrier ( vehicle, boat, ship etc ) has been designed. it uses an embedded system which is based on arm7tdmi core microcontroller and c / os - ii real - time operating system to control and scout the movement of the antenna stabilization platform, can realize the real - timable and reasonable stance control of the antenna, and then can realize the real - time communications and the signal receiving between the satellite and the moving carrier
3 .通過論文的研究,開發出了一種用於移動載體(車、船、艦等)上利用穩定平臺來進行衛星通信與電視信號接收的系統? ? 「動中通」移動載體衛星通信與電視接收系統。該系統採用基於arm7tdmi核微控制器和c / os - ii實時操作系統的嵌入式系統來控制天線穩定平臺的運動,可以實現對天線實時而合理的姿態控制,從而實現移動載體與衛星之間的實時通信和信號接收。The meteorological satellites, resource satellites, oceanic satellites and disaster monitoring satellites can develop into an earth observation system for long - term stable operation to conduct stereoscopic observation and dynamic monitoring of the land, atmosphere, and oceanic environments of the country, the peripheral regions and even the whole globe
以氣象衛星系列、資源衛星系列、海洋衛星系列和環境與災害監測小衛星群組成長期穩定運行的衛星對地觀測體系,實現對中國及周邊地區甚至全球的陸地、大氣、海洋的立體觀測和動態監測。In view of the regression characteristic and the configuration maintenance demand of the regional coverage satellite constellation, the constellation configuration is optimized using the linear relations between the semi - major axis and inclination and the rates of change of the ascending node right ascension and phase, which enhance the long - term stability of the satellite constellation configuration, simultaneously the sub - stellar and the phase are controlled through changing the deviations of the semi - major axis and the inclination
摘要針對區域覆蓋衛星星座的回歸特性和構型維持需求,利用軌道半長軸和傾角與升交點赤經漂移和相位角漂移變化率之間的線性關系來優化星座構型參數,提高衛星星座構型的長期穩定性,同時通過協同控制軌道半長軸和傾角漂移量來實現區域覆蓋星座構型維持。A reversal could knock out power grids, hurt astronauts and satellites, widen atmospheric ozone holes, send polar auroras flashing to the equator and confuse birds, fish and migratory animals that rely on the steadiness of the magnetic field as a navigation aid
逆轉會破壞能量網格,損害宇航員和衛星,加大臭氧層空洞,發送極光到赤道而搞亂鳥類,魚和遷徙動物,它們依靠磁場的穩定性作為導航幫助。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。Deduce the mathematical model of satellite attitude control system and position / attitude control system respectively, then design tracking controller. the credibility and availability of the proposed control strategy is shown by theory and simulation
分別推導了人造衛星姿態控制系統的數學模型和人造衛星位姿控制系統的數學模型,並進行指數穩定跟蹤控制設計,理論和模擬實驗證明了所提供的設計方法是行之有效的。Nevertheless the system cannot fulfill the request of present satellite launch because of the out - of - date equipment, the low grade of technique application, the in - normative system interface, etc. consequently it is crucial to update the system to meet the following satellite launch campaigns
但當前整個系統存在著設備老化嚴重,技術應用水平不高,系統連接標準不統一等弊端,由此造成了整個效率低下,設備故障率偏高,運行不夠穩定等一系列問題,為了適應后續衛星發射試驗任務的需要,迫切要求對系統進行相應的改造。Through it the author made a deep study of the satellite attitude control subsystem, verified several sorts of disturbance torques and realized satellite three - axis attitude stabilization control and attitude maneuver under different conditions
本文在simulink下對衛星姿控系統作了比較深入的研究,對各種干擾力矩進行了驗證,同時在不同的模擬條件下實現了衛星三軸穩定控制、姿態機動和飛輪的磁卸載。Attitude - stabilized satellite
姿態穩定衛星The satellite attitude control system has been analyzed in detail, in order to apply in diagnosis, the dynamic simulation modular of satellite that controlled by off - center momentum wheel has been accomplished, and the parameters were determined in a certain satellite
對三軸穩定衛星的姿態控制系統進行分析,從故障診斷應用模型的角度出發,建立了偏置動量輪控衛星的姿態動力學系統的動力學模型和模擬模型。針對某型號衛星確定了系統參數。This paper studies on the attitude ontrol system of three - axis stabilized satellite systematically, and makes deep study on the design of attitude control system. the main work of this paper is as follows : first, found whole mathematical model about attitude control system of satellite. it contains kinematics model, dynamic model, actuator model and torque model. analyse the conmmen characteristic of actuator of satellite ’ s attitude control system
本文較為系統地研究了三軸穩定衛星的姿態控制系統,並在姿態控制規律的設計方面進行了較為深入的研究。論文主要工作如下:首先,建立了完整的衛星姿態控制系統的數學模型。其中包括星體運動學模型、星體動力學模型、執行機構模型及環境干擾力矩模型。The main work done in the paper is as follows : 1. satellite attitude dynamics modeling study : for the earth - oriented three - axis stabilized satellite, a precise attitude dynamics model is established, considering the influence of the environmental disturbance, such as the gravity, the sun radiation, the earth magnetic field and the atmospheric resistance
本文的主要研究工作如下: ( 1 )衛星姿態動力學建模研究:針對對地定向三軸穩定衛星,考慮了重力梯度、太陽輻射、大氣阻力、地球磁場等環境因素對衛星的影響,建立了較精確的衛星姿態動力學模型,同時又建立了四元素描述的姿態運動學方程。The antenna driver is the key part of the secondary planet system. in this paper full - digital ac - servo control system based on dsp ( digital signal processor ) is adopted to control antenna rotating, which improves greatly system reliabity and stability
本文就是為解決某型號衛星天線的穩定旋轉而專門設計的以電機專用控制晶元dsp為控制核心的全數字化交流伺服驅動系統,從而極大提高整個系統轉速穩定度和可靠性。According to the direction and damping characteristic of magnetic torque and the theory of linearity, the scheme of satellite attitude control just using magnetic torque is presented
根據地磁力矩定向阻尼特性和線性疊加理論,提出僅用磁力矩器實現對地指向衛星三軸姿態穩定的控制規律。Through the analysis of attitude dynamic equation, how to realize three axis passivity stabilization of the mircrosatellite by just using environmental torque is presented. three sorts conformations of three axis passivity stabilization of the mircrosatellite by using environmental torque are put forward, one is to realize the passive attitude control of microsatellite by using the aerodynamic moment and the gravity gradient, the other two by making use of the gravity gradient and the geomagnetic moment, the attitude dynamics of microsatellite of the three sorts are analysed in detail
通過對衛星姿態動力學方程分析,給出如何利用環境力矩實現微小衛星三軸姿態被動穩定,並提出三種利用環境力矩實現微小衛星三軸姿態被動穩定方案,即一種利用氣動力矩和重力梯度實現微小衛星三軸姿態被動穩定方案和兩種利用重力梯度和地磁力矩實現微小衛星三軸姿態被動穩定方案,對採用這三種方案的衛星的姿態運動進行詳細分國防科技大學研究生院學位論文析。Finally, the motion stability of the flexible deployable truss mentioned before was analyzed. according to the definition of motion stability, the simulation results under the conditions of different initial attitude angle velocities and pulse torque function indicate that the deployment motion of flexible truss under these initial distortions was steady. the drive angle velocity of deployment
根據無擾運動的穩定性定義,通過對衛星在不同初始姿態角速度下及受到力矩脈沖作用下展開時衛星的姿態角速度的影響的比較,說明在這兩種初始擾動下桁架的展開運動的穩定性情況;對不同驅動角速度下桁架展開的模擬結果比較得到該桁架的失穩條件。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。3. the three - axis attitude stabilization of the rigid satellite has been studied. and, the influences of the external disturbances on the system stabilization have been studied
3 、設計了剛體衛星的三軸姿態穩定控制律,分析了外界干擾對剛體衛星姿態的影響和系統的穩定性。The dynamic model of the satellite with a flexible appendage has been studied in this thesis. also, the techniques of the satellite earth acquisition and three - axis attitude stabilization of both the rigid satellite and the liquid - filled satellite have been researched
本文針對單翼大撓性太陽帆板衛星,建立了撓性衛星動力學模型,在此基礎上,研究了地球捕獲、剛體衛星三軸姿態穩定、充液衛星三軸姿態穩定問題。分享友人