航標衛星 的英文怎麼說

中文拼音 [hángbiāowèixīng]
航標衛星 英文
beacon satellites
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 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...
  1. Orbiting satellites were better at spying on enemies than wayward reconnaissance drones, and rockets destroyed targets more reliably than temperamental flying bombs did

    按軌道運動的衛星比難以駕馭且以監控為主的無人駕駛飛機更好地偵查敵情，而且相對於我行我素的自動導航導彈而言，用火箭來毀滅目標更具可靠性。
  2. 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。
  3. The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering

    本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。
  4. Research on superconducting josephson array oscillator, a national nature science fund subject, investigates a high property thz oscillate source with wide potential applications in many areas, such as aerospace, universal detection and object recognition

    超導約瑟夫森結陣列振蕩器是國家自然科學基金項目，這種振蕩器是一種具有廣闊應用前景的高性能thz振蕩源。這種器件在航空航天、天文探測、地球衛星遙感、衛星地面目標識別以及醫療診斷上均有著極為廣闊的前景。
  5. The far - distance targets can be detected with the aid of the satellite image and the ample respond time of the defensive system can be provided ; the cryptic cruise missile and anti - radiation cruise missile can be effectively detected and tracked recur to the infrared image. radar is widely used in the cruise missile defensive system. the radar in the sky can detect the further flying cruise missile, ground based radar and coastal defense radar can track and help weapons system aim at the oncoming force cruise missile

    在目前情況下，衛星圖像、紅外圖像以及雷達成像在探測、跟蹤、識別、打擊巡航導彈目標方面具有相當大的優勢，藉助于衛星圖像可以在遠距離發現目標，能夠為防禦系統提供比較充足的響應時間；藉助于紅外圖像可以有效對付隱身巡航導彈和反輻射巡航導彈；雷達是在巡航導彈防禦系統中使用最多的設備，空基雷達能夠探測離防區比較遠的巡航導彈，陸基雷達和海基雷達能夠跟蹤巡航導彈，並可協助武器系統瞄準來襲巡航導彈，尤其是雷達陣在巡航導彈防禦中更是可以發揮重要作用。
  6. This paper presents the results of studies on collectivity scheme and some key technologies about the network - based navigation system which is composed by existing stations ( e. g. radio beacon ), unmanned air vehicles ( e. g. relay uav ), other air - tactical serving vehicles and data relay satellites

    本文研究了利用地面現有臺站（如無線電信標臺）和移動站（如移動指揮車輛） 、空中無人機平臺（如中繼無人機）和其他空中戰術服務平臺、以及數據中繼衛星等構成的網路化導航系統的總體方案和相關技術。
  7. Precision transmission device is one kind of the key fundamental components, which are extensively applied to many industry fields including robot industry, machine industry, instrument industry etc. with the development of information technology and space navigation technology, especially the micro - miniaturization, speediness and automation of satellite communication, scouting the flying project, remote sensing and measuring and astronomic observation antenna system, more hard requirements are demanded on precision transmission

    精密傳動是一種重要的基礎性零部件，在機器人、機床、儀器儀表等工業領域有著廣泛的應用。隨著信息和宇航科學技術的發展，特別是衛星通信、飛行目標跟蹤與攔截、遙感與遙測、天文觀察等天線系統的微小型化、快速化及自動化，對精密傳動提出了更高的要求。
  8. Such tdrss system can significantly reduce the use of ground - based monitors as well as increasing medium - low orbit coverage, hence enhance the efficiency of the usage of space along medium - low orbit. “ space target capturing and tracking ” ( stct ) is an important technique in data relay satellite system, and is the preliminary requirement to establish the space link. “ performance of analyzing and simulating on tracking receiver in data relay satellite capturing and tracking system ” plays an important role of stct

    數據中繼衛星系統是為中、低軌道的航天器與航天器之間、航天器與地面站之間提供數據中繼、連續跟蹤與軌道測控服務的系統，使用數據中繼衛星可以大量減少地面測控站的數量，增大對中、低軌道的覆蓋率，有效的利用中、低軌道資源。 「星間目標捕獲與跟蹤」是數據中繼衛星系統的一項關鍵技術，是建立星間鏈路的首要條件。
  9. This thesis presents the acquisition method of synchronization codes and time mark codes under - 20db gaussian channel. then the total step length between initial state and current state can be calculated. basing on the step length, we can deduce the current state of pseudo - random codes, and implement the acquisition of the special pseudo - random codes

    本文設計出時間標記碼在信噪比達- 20dd時的捕獲方案，在此基礎上提出了由偽碼歷經的狀態數，計運算元碼當前狀態的方法，從而獲得了在30秒內完成導航定位衛星信號直接捕獲的方法與實現方案。
  10. Technical requirement for the installation, operation, maintenance and repair of marine navigation equipment 406mhz epirb

    船用通信導航設備的安裝使用維護修理技術要求406mhz衛星應急無線電示位標
  11. In the design optimization of space equipment satellite systems, there are lots of discrete and integer design variables, the design space is nonconvex and even disjointed, and has multimodality. unfortunately, current mdo procedures or strategies have difficulty to deal with discrete or integer design variables, they are very sensitive to complex design space, have propensity to converge to local optima near the starting point, and can not handle multiple objectives effectively. to overcome these difficulties, this dissertation adopt the idea of coevolution to systematically develop new multidisciplinary design optimization methods based on decomposition and coordination

    論文以航天裝備體系及其它復雜飛行器系統的多學科設計優化（ multidisciplinarydesignoptimization ，簡稱mdo ）為應用背景，針對航天裝備衛星系統設計中存在大量離散和整數設計變量、設計空間非凸和不連通、具有多個局部最優點等特點和現有mdo方法過程難以處理離散和整數變量、對復雜設計空間非常敏感、易於陷入局部最優、不能有效處理多目標等缺陷，採用協同進化的思想，系統地進行基於分解協調的mdo方法研究。
  12. That suggests that gps satellite navigation, capacity for mobile television and storage space for hundreds of music tracks will also be standard features before long

    這表明gps衛星導航系統、支持手機電視、數百首音樂的存儲空間在不久以後也會成為標準配置。
  13. With the development of spaceflight activity of human, surveillance of space target such as satellite and debris becomes very important

    摘要隨看人類航天活動的增加，對于衛星和碎片等空間目標進行監視變得非常重要。
  14. In order to make sure the spacecraft can fly in any condition here adopted the error model was derived by friedland in 1978, which was based on the earth centered inertial ( eci ) frame

    為了能有利於衛星等航天器高精度自主導航本文採用1978年由friedland提出的基於慣性坐標系下的慣性系統誤差理論推導出另外一種基於慣性坐標系下的慣性導航系統。
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