測星導航 的英文怎麼說

中文拼音 [cèxīngdǎoháng]
測星導航 英文
navigation by stars
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 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...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  1. The orientation information of the sun, the moon and the earth, together with ephemeris are utilized to develop autonomous navigation algorithm, as well as its realization by dsp hardware

    在小樣本觀測數據情況下，研究利用日地月方位信息和日月星歷表進行航天器自主導航以及利用dsp實現航天器自主導航器的技術。
  2. 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。
  3. Satellite for orientation navigation and geodesy

    定向導航和測量衛星
  4. Gps receivers belong to the user equipment, mainly used to receive satellite signals and telegraphese, measure the distance from receiver to the satellites by the wireless signals, compute the position and speed of satellites by telegraphese, then compute the position and speed of user

    Gps衛星接收機屬于衛星導航定位系統中的用戶設備，主要用於接收衛星信號和電文，由無線電信號測定用戶至衛星的距離，或多普勒頻移等觀測量;根據導航電文，計算觀測衛星的位置和速度，根據觀測量和衛星的位置、速度，解算出用戶的位置和速度。
  5. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。
  6. The research on autonomous navigation and orbital keeping technology of geosynchronous satellites : selecting position vector in the inertia space and longitude, latitude, radial errors in the hill equation as state variables, the precision of orbit determination caused by track dynamic model error, sampling period, and sensor measurement and install error is analyzed

    同步衛星自主導航與軌道保持技術研究：分別選取慣性空間位置矢量和採用hill方程表示的經、緯、向徑誤差作為狀態量，分析軌道動力學模型誤差、采樣周期以及敏感器測量、安裝等誤差對定軌精度的影響。
  7. Radio occultation technique for the earth ’ s atmospheric profiling, a new application of the global navigation satellite systems, is one of the most advanced space exploring techniques in the 21st century

    地球大氣無線電掩星觀測技術是導航衛星應用新的生長點，是21世紀最先進的空間探測技術之一。
  8. Navstar - navigation satellite timing and ranging

    導航衛星測時測距
  9. Private club aimed at the city s business community. information on facilities, events and membership

    -經營項目包括：測繪測量全球衛星定位導航地理信息系統技術等。
  10. 2 ) for the rank - short problem of inter - satellite measurement net, the architecture of constellation ’ s autonomous navigation was designed. satellite - to - satellite and satellite - to - ground measurement scheme and time synchronization of measurement were discussed. last, all factors that influence the navigation precision of constellation were analyzed mathematically, and some useful conclusions were drawn

    2 ）針對星間觀測網的秩虧問題，進行星座自主導航系統的框架設計，討論了星間、星地的測量方案以及測量值的時間同步問題，最後對影響星座導航精度的各個因素進行了數學分析，得出了一些有益的結論。
  11. The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system

    如航跡產生器的設計，該航跡產生器是研究組合導航問題的前提，從國外一些研究組合導航系統的文獻中可以看出，設計這樣一個航跡產生器是非常必要的，所以本文自行設計了這樣一個系統；還討論了捷聯慣性導航系統中捷聯解算的方法，並進行了模擬研究，由於在本文設計的閉環反饋式組合導航系統中，對捷聯慣導系統的平臺誤差進行閉環控制，需要將濾波器輸出的校正量反饋到捷聯解算內部，所以必須對捷聯解算進行深入的研究和分析，更何況捷聯解算問題本身也是導航界的一個熱門研究課題；另外，本文還介紹了gps軌道及其星座模擬的設計思想和方案，與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始，逐步進行gps軌道及其星座模擬，這樣的設計方法對從事衛星導航的研究工作是有價值的；還對組合導航中誤差建模方法進行了研究，綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法，並運用實際研究工作中的測量數據對該方法進行了驗證。
  12. In deep space exploration missions, autonomous navigation technology is very important, and in this paper, we do some research into the autonomous navigation schemes of encountering small celestial bodies. it is mainly described as the follows : firstly, by analyzing the orbit characteristics and task requirements in encounter, the simplified orbit dynamic model for the deep space probe is built up, and whether the corresponding model error that meets the demanding of autonomous navigation task is validated

    在深空探測任務中，自主導航技術是十分重要的，本文對交會小行星的自主導航方法進行研究，主要內容包括:首先，分析交會小行星的軌道特性及任務需求，建立簡化的深空探測器軌道動力學模型，並驗證了簡化模型的誤差能否滿足自主導航任務的需求。
  13. By analyzing the method mathematically, the basic architecture of autonomous navigation system of constellation was designed. and also, the orbit determination method using whole net, the robust estimation method, and the integrated navigation method based on inter - satellite measurement and stellar refraction were studied emphatically

    通過對該方法進行數學分析，設計了星座自主導航系統的基本框架，並重點研究了整網定軌方法、抗差估計方法和基於星間觀測+星光折射的組合導航方法。
  14. Navigation by stars

    測星導航
  15. We now have a dead reckoning system ( see prototype screenshot on figure 2 ), named after the ancient naval navigation techniques used when the stars were not visible

    現在我們就有了一個導航預測系統，該系統以古代航海學上在星星不可見時用來導航的技術而命名。
  16. All the major crane manufacturers have been devoted to solving these problems ; few ideal resolutions have been obtained yet. though. with the development of gps technology. some tentative new methods to deal with such problems are made possible. this paper probes into how to apply gps technology - global position system with the function of measuring time and distance by use of navigation satellites into integrated container rtp

    各大製造廠長期以來致力於這些問題的研究，但效果似乎並不理想。 gps的誕生及技術性能的提高為輪胎吊這些問題解決提供了新的方法。 gps的含義是利用導航衛星進行測時和測距，以構成全球定位系統，本文就gps在集裝箱rtg上的應用進行探索和研究。
  17. Star pattern recognition is to confirm the corresponding relations between the star map of observed stars in field of view ( fov ) of star sensor and the star map of guide stars

    星圖識別就是將星敏感器視場中觀測星組成的星圖與導航星組成的星圖進行特徵匹配以確定觀測星與被測星的對應關系。
  18. Use the magnetic vector for the observation information, the paper estimate the location and rate of the satellite, analysis of simulation results and the sources of error. to further enhance navigation accuracy, the paper study the unscented kalman filter, compare with the extend kalman filter. in the same initial conditions of the extend kalman filter, we do the simulation

    其次，基於磁環境模擬系統的測量數據，本文研究了擴展卡爾曼濾波演算法，建立了衛星的運動學和動力學方程，以地磁場矢量為觀測信息，對衛星位置速度進行了估計，並分析了模擬結果及誤差來源，為了進一步提高導航精度，本文又研究了unscented卡爾曼濾波演算法，給出了原理及步驟，並與擴展卡爾曼濾波進行了比較分析。
  19. The effect of tt amp; c deployment on the regional satellite navigation system

    測控站布局對區域衛星導航系統的影響
  20. The effect of tt amp; amp; c deployment on the regional satellite navigation system

    測控站布局對區域衛星導航系統的影響
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