行星環衛星 的英文怎麼說

中文拼音 [hángxīnghuánwèixīng]
行星環衛星 英文
moom
  • 行 : 行Ⅰ名詞1 （行列） line; row 2 （排行） seniority among brothers and sisters:你行幾? 我行三。where...
  • 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...
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 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...
  • 行星 : [天文學] planet
  1. Because it ’ s hard to get radiation - harden hardware overseas, so the software fault tolerance techniques are significant for our national space enterprise. the computer platform of 863 plan project ” micro intelligent free - flying space robotic system ” consists of cots component. the orbit and the radiation environment of the robot are similar to ones of the argos satellite, and the system is required to have high reliability. therefore it ’ s necessary to applied the software fault tolerance techniques into the system to improve the anti - radiation capability after the techniques been verified valid

    因為我國很難從國外獲得輻射加固的硬體，所以，這項軟體容錯技術對我國航天事業的發展具有較大意義。 863計劃項目「小型智能飛行機器人系統」所用的計算機平臺採用商用器件，其衛星的運行軌道與argos衛星軌道近似，面臨的輻射環境與argos衛星相似，要求具有高可靠性。因此，小型智能飛行機器人系統有必要在驗證sihft技術有效的基礎上，應用軟體容錯技術，提高其空間抗輻射能力。
  2. “ space travel is bunk. ” ? sir harold spencer jones, astronomer royal of the uk, 1957 ( two weeks later sputnik orbited the earth )

    「太空旅行是胡言亂語。 」 ? ?阿諾德斯班塞瓊斯爵士，英國皇家天文學家， 1957 （ 2周后斯巴尼克人造衛星環繞地球） 。
  3. Correlations of satellite positions and ring features occur in the jovian, uranian and neptunian systems as well

    在木星、天王星、海王星的系統中，衛星的位置也和行星環的特性密切相關。
  4. The landsat spacecraft orbits the polar regions of the earth at a height of 920 kilometers

    地球資源衛星航天器以920公里的高度環繞地球的兩極地區運行。
  5. After an elementary study with lunar orbiting satellite, it is necessary to make exploration devices land on the moon and carry out detailed exploration with lunar rover in a rather large area

    在利用環月衛星對月球進行初步的探測之後，需要使探測器在月球表面軟著陸，並由月球車執行較大范圍的詳細探測任務，為載人登月和建立月球基地做好準備。
  6. Satellites orbiting round the earth have provided scientists with a vast amount of information about conditions in outer space.

    環繞地球運行的人造衛星，為科學家提供了有關外層空間的大量資料。
  7. In addition to helping us learn more about saturn's moons, voyager added to our knowledge of saturn's rings.

    旅行者除了幫助我們增進對土星的衛星了解外，還使我們豐富了有關土星光環的知識。
  8. 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。
  9. To improve understanding of the processes of heterogeneous land surface - atmosphere interaction, the utilization of satelli te remote sensing is indispensadle. in this paper, with the aid of satellite remote sensing and fiend observational data which observed during intensive observation of huaihe river bain energy and water cycle experiment hubex in 1998, the surface albedo, ndvi normalized difference vegetaton index and surface temperature in regional scale of hubex could be derived. then, the distribution of regional energy balance components could be estimated. this wor provided the physical foundation for the numerical simulation of the huaihe river basin energy and water pro cesses, and is important for us to further analyze the regional distribution of surface characteristic parameters ad energy balance components with the change of the weather situation in hubex in 1998. our work is still in a developing stage, some methods of retrieval in the paper should be improved further

    利用1998年淮河流域加密觀測試驗hubex iop期間的資料，進行淮河流域能量平衡的參數化方案的研究，用noaa衛星的avhrr資料建立了試驗區地表特徵參數及能量平衡各分量的參數化方程，並對衛星遙感反演結果和試驗觀測值進行了對比，為淮河流域能量和水循環的數值模擬提供了物理依據。
  10. Based on the theory of software architecture, the hierarchical structure is used for designing the software system because the aocs demands real - time and high reliability. the integrated environment for software cross - development of vxworks is used for simulating the schedule of several multi - tasks, the managing of work mode and the communication among the modules. an approach of software architecture for the attitude and orbit control system of satellite is developed in this paper, which is based on a deep study and analysis of modern software techniques

    本文運用軟體體系結構的理論，通過對多種軟體體系結構的分析比較，針對衛星姿軌控系統實時、高可靠、復雜等特點，採用層次結構方案進行了體系結構設計，並運用實時操作系統vxworks的集成開發環境，完成了姿軌控系統多任務調度管理、工作模式管理和應用模塊間相互通信的模擬實踐。
  11. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  12. At first, environment detection data is collected, modulated and emitted in the the system of fy - 2 and detectors. then data signal is magnified, demodulated and sent in the earth - based system of data receiving and demodulating. at last, data is received, processed, stored, displayed and judged to make alarm automatically by telephone for solar proton - events and x - ray flare in the system of data processing and alerting

    首先在fy - 2衛星及探測器系統中，環境探測數據被收集、調制並發射，接著由地基數據接收及解調系統將數據信號放大、解調還原並發送，最後由數據處理及警報系統將數據接收處理、保存顯示並對太陽質子事件、 x耀斑進行自動電話報警。
  13. It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given

    本文包含有以下的主要內容： ?對衛星移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程；以便對這幾個在衛星移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解，對進一步研究衛星移動通信通道傳播特性和對通道的建模提供了更為詳盡的理論基礎； ?對衛星移動通信通道傳播特性的研究中常用的通道模型進行了理論上的分析和討論，並對衛星移動通信通道建模的研究工作提出了一定的看法； ?指出了以前的文獻中關于c . loo模型和corazza模型的等同性的證明錯誤；並從接收信號功率的角度出發，通過理論推導及模擬曲線擬合重新證明了在鄉村環境下，這兩個模型的確是具有等同性的；從而在對鄉村環境下的衛星移動通信通道傳播特性進行研究時，可以只採用corazza模型來對實際的通道進行建模，這樣可以避免重復的建模工作並提高研究工作的效率和準確性； ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟體模擬實現的詳細過程和整體模擬測試的對比結果，保證了該模型在硬體實現時的可靠性和可行性，從而可以將它們應用於指導模型的硬體模擬實現並可以降低硬體實現時的風險。
  14. In the paper the attitude control subsystem based on hla is designed and simulated for a specific earth - oriented observation small satellite

    本文針對對地觀測小衛星，進行了模擬系統及其演示環境可行性方案論證和方案設計工作。
  15. Satellites orbiting round theearth have provided scientists with a vast amount ofinformation about conditions in outer space

    環繞地球運行的衛星，為科學家提供了浩如煙海的外層空間的資料，相比之下，對地球內部的結構則知之甚微。
  16. To set up a network of remote sensing satellites to conduct long - term dynamic monitoring on the weather, oceans, resources, environment and disasters of china, its perimeter and even the whole world

    以氣象衛星資源衛星海洋衛星和環境與災害監測衛星，對中國及周邊地區甚至全球，進行長期的動態監測。
  17. 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。
  18. The satellite is powered by photovoltaic cells in two solar panels which provide 500 watts of electrical energy for the orbiting craft

    衛星是以裝在兩個太陽能板上的伏打光電池為動力，為環球飛行的航天器提供500瓦的電力。
  19. So the city development of kunming shall radiate to whole of our province to be in charge of the important historic task to promote the city distribution in yunna and push the development of other middle and small cities. this article has analyzed the chance of kunming city development, international environment, tendency of city development in the world as well as the present situation of chinese cities and proposed a network city project, in which a primary city, 3 secondary cities and 20 small towns shall compose a city distribution system, from the aspects of objective condition and concrete operation mechanism. further, this network city project suggests to, as main point, program and develop three secondary cities, anling, yiliang and songmin, and small towns, and to disperse part of property of the prima ry city and decompose the city function

    於是昆明市城市發展將幅射全省，擔負起促進雲南城市化進程、推動其他中小城市興起的艱巨歷史使命，本文在對世界城市發展趨勢及我國城市目前的現狀，以及昆明城市發展面臨的機遇、國際環境與存在的問題進行分析之後，從宏觀體系和具體運作機制方面提出了按一座主城、三座次級城市、縣城和20座衛星小城鎮的城鎮體系布局，構建網路城市，重點規劃發展安寧、宜良、嵩明三座次級城市，並疏散部分主城的產業和分解城市功能。
  20. Explaining how satellites wield such power has been the major advance in ring science over the past two decades

    過去20年來，行星環科學最主要的成就，在於了解到為什麼衛星的影響能夠如此之大。
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