spacecraft orbit 中文意思是什麼

spacecraft orbit 解釋
航天器軌道
  • spacecraft : 非載人宇宙飛船
  • orbit : n 1 【天文學】軌道；【解剖學】眼窩，眶；（鳥或昆蟲的）復眼緣的頰部。2 （人生的）旅程，生活過程；...
  1. The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained

    本文將近地共面軌道內運動的兩飛行器非線性追逃模型簡化為線性模型，以捕獲半徑的圓域定為目標集，確定目標集邊界上的可用部分，並以此為各狀態變量的起點，對時間進行倒向積分，求得線性方程組的解析解，從而確定了該追逃模型的線性界柵，以及界柵上對策雙方的最優推力，即求得了滿足最優策略時相對運動的軌跡和推力。
  2. Anousheh ansari. anousheh ansari was accompanied by a us - russian crew on the soyuz tma - 9 capsule, which entered orbit about 10 minutes after liftoff from the russian cosmodrome in kazakhstan. ansari reportedly paid us 20 million to become the fourth private astronaut to take a trip on a russian spacecraft and visit the station

    這位名叫阿諾謝赫安薩里的女子在兩位美俄宇航員的陪同下，搭乘"聯盟tma 9號"飛船在位於哈薩克斯坦境內的俄羅斯發射基地升空， 10分鐘后，飛船進入預定軌道。
  3. Anousheh ansari was accompanied by a us - russian crew on the soyuz tma - 9 capsule, which entered orbit about 10 minutes after liftoff from the russian cosmodrome in kazakhstan. ansari reportedly paid us 20 million to become the fourth private astronaut to take a trip on a russian spacecraft and visit the station

    這位名叫阿諾謝赫安薩里的女子在兩位美俄宇航員的陪同下，搭乘"聯盟tma 9號"飛船在位於哈薩克斯坦境內的俄羅斯發射基地升空， 10分鐘后，飛船進入預定軌道。
  4. To sum up, tested and validated by data sets of shenzhou iv unmanned spacecraft and precise orbit ephemeris, the algorithms presented in the thesis can improve orbit accuracy and reduce random noise considerablely. derived conclusions have important value for reference, and lay the firm technological foundation for future applications

    總之，經過神舟四號飛船實測數據計算和精密星歷檢驗，表明本文提出的各種定軌方法可以較好的提高定軌精度，減少隨機噪聲，所得出的結論對于實際應用具有重要的參考價值，並為將來的應用奠定了堅實的技術基礎。
  5. In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation

    在日月可見階段，模擬日、地、月敏感器測量信息，即日、地、月在航天器本體坐標系下的方位信息，結合日月星歷，建立狀態方程及觀測方程，通過最小二乘法得到歷元時刻的軌道狀態初始值，將其代入軌道狀態方程進行自主導航。
  6. Although representatives of three dozen countries have gone into orbit since the dawn of the space age, they have all traveled on board either american or russian spacecraft

    自太空時代開始迄今，已經有來自幾十個國家的代表上過太空，不過他們都是搭乘美國或蘇俄的太空船。
  7. 3. expatiated on the application theory of basic orbit, including subastral point calculation, visibility analysis, coverage evaluating and spacecraft life - span estimate

    3 、闡述了基本軌道應用分析理論，包括星下點軌跡計算、可見性分析、覆蓋評估和軌道壽命估算。
  8. Once in orbit, two of the themis spacecraft will circle earth about one - sixth the distance to the moon while the other two circle half way to the moon

    一旦進入軌道， themis計劃的2枚衛星將在1 / 6地月距離上環繞地球運動，而其他兩枚將在1 / 2地月距離運動。
  9. On 1 july 1975, the us apollo spacecraft docked with the soviet soyuz spacecraft while in earth orbit. this was the first international cooperative space flight

    1975年7月1日，美國阿波羅太空船利用由美國和蘇聯共同研發的靠站設備，與蘇聯的聯合號一起在地球的運行軌道靠站，這是國際首次在太空飛行方面的合作。
  10. The basis of dynamics and simulation includes the iterative flyout angle algorithm to the solutions to lambert problem and battin ' s universal conic section state extrapolate method. then spacecraft ' s orbit roots, maneuver impulse and maneuver time are discussed as the following four part : first of all, the chaser ' s one orbit roots is selected as a variable to simulate its influence to the large scale orbital maneuver. the research reveals fact that the orbit roots both of chaser and target should be close to each other to achieve better maneuver and rendezvous " ability, moreover, the best orbit maneuver and rendezvous occurs when both chaser and target ' s initial phase angle are equal

    為了研究了交會機動中追蹤器和目標器的軌道根數、機動時限和機動能耗等因素對交會機動的影響，模擬和分析分為以下四個部分:首先，研究了追蹤器軌道單個參數為變量情況下兩航天器大范圍交會機動問題，研究表明，追蹤器的變化參量與目標器相應的參量在接近的情況下可以獲得良好的交會機動特性，而對于兩航天器軌道共面的情況下，初始相位角相等時則獲得最佳的機動效果。
  11. Imagine a four - person, surface - to - orbit spacecraft no larger or more expensive than the family car

    再設想一下，一艘由地面發向太空軌道的四座太空船，無論其體積，還是價格，都不會超過一輛家用小轎車
  12. Both advantages of rocket engine and air - breathing engine are integrated into one kind of propulsion system, called rocket - based - combined - cycle ( rbcc ), which has multiple operating woke modes, including ejecting, subsonic combustion, supersonic combustion and rocket mode, with each mode operating at varying flying stage. rbcc has prominent potential of high efficiency and low cost, and so it is recognized as an advanced propulsion system of future single - stage - to - orbit reusable spacecraft and hipper - sonic missile. it has been broadly investigated in foreign countries and has been progressed into small and full - scale flying stage

    火箭基組合動力循環（ rbcc ， rocketbasedcombinedcycle ）將傳統的火箭發動機和吸氣式發動機的優點集中組合到一個具有多種工作模態（包括引射、亞燃、超燃及火箭模態）的發動機里，在不同的飛行階段啟用不同的工作模態，因此具有大幅提高航天推進系統經濟性與高效性的潛在優勢，並可能發展成為下一代單級可重復使用航天器以及高超聲速導彈武器的動力系統。
  13. The flight up was successful and the spacecraft entered its orbit ten minutes after the launch. in the 21 - hour mission yang liwei orbited the earth 14 times, making a journey of about 600, 000 kilometers. shenzhou - 5 then landed safely on the amugulang prairie in the siziwangqi region of inner mongolia, only 4. 8 kilometers from the designated landing spot, significantly pointing to the advanced achievements of astronautics in china

    楊利偉在太空航行二十一小時，環繞地球運行十四周，飛行共六十萬公里，最後在內蒙古四子王旗阿木古朗草原安全著陸，與目標著陸點僅相距四點八公里，顯示中國航天科技的長足進步與卓越成就。
  14. For example, it can be used to drag make - up and solar pressure cancellation of low orbit spacecraft, formation flying and precise positioning of small satellite, repos

    同時， mpt也可用於低軌道（ 300 500km ）航天器的大氣阻力補償，星際航行航天器的主推進，以及星座和小型衛星的編隊飛行和精確定位等，具有廣闊的應用前景。
  15. The spacecraft is in orbit around the moon

    該航天器在繞月球軌道運行。
  16. The spacecraft is in orbit ( ie moving in orbit ) round the moon

    該航天器在繞月球軌道上飛行
  17. The spacecraft, which reached orbit on march 10, is to map about 1 percent of the martian surface for future landings by robotic probes and human astronauts

    Mro在3月10日進入火星軌道。這批照片是在距離火星表面1547英里約2490公里高處拍攝的。
  18. After entering orbit around the red planet, the chinese micro - satellite will detach from the russian spacecraft, and probe the martian space environment, according to the statement

    探測器進入火星軌道后，中國衛星將和探測器分離，考察火星的空間環境
  19. New horizons ' trailblazing journey to the solar system ' s outermost frontier took it past the orbit of mars today at 6 a. m. edt, 78 days after the spacecraft launched

    新地平線打響了探索太陽系邊疆的第一炮，而在今天美國東部時間早上6點，在發射了78天後它成功跨越了火星軌道。
  20. Selecting the image elements of earth and moon centers as observed quantity, measurement noise model and observed equations of autonomous navigation system are built up. the spacecraft orbit is determined by using the recursive weighted least square based on ud factorization

    在奔選取地心和月心像素作為觀測量，建立了符合實際情況的量測噪聲模型和自主導航系統的觀測方程，並利用基於ud分解的遞推加權最小二乘演算法估計了奔月探測器的軌道參數。
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