航模探測 的英文怎麼說

中文拼音 [hángmótàncè]
航模探測 英文
model aeroplane sounding
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 探 : Ⅰ動詞1 （試圖發現） try to find out; explore; sound 2 （看望） call on; visit; see 3 （向前伸出）...
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 探測 : survey; search; sound; probe; sounding; detection; acquisition; reconnaissance; localization; fin...
  1. The advantage and disadvantage of measurement of propeller - induced pressure by using different equipment is discussed. the method to obtain self - propulsion point for full scale in depressurized towing tank is studied. the measurements of pressure of two propeller models are carried out, the results of the measurement agree with those obtained by cavitation tunnel very well, which proves this measurement is successful, and the theoretical prediction is verified too

    比較了不同測試設備用於螺旋槳脈動壓力測試的優缺點，探討了在減壓拖曳水池中實現實船自航點的方法，並進行了兩只螺旋槳模型的脈動壓力測試，經與空泡水洞中脈動壓力的測試結果進行比較，說明該項測試是成功的，同時也對脈動壓力的理論預報結果做了驗證。
  2. This thesis systematically analyzes the characteristic of flight segment volume and existing model selection method, and discusses theory and algorithm of support vector machine in details, makes research on model selection in forecasting of flight segment volume combined with support vector machine

    本文系統地分析了航段運量的特點及現有的模型選擇方法，詳細探討了支持向量機相關理論和演算法，結合支持向量機對航段運量預測模型選擇方法進行了深入研究。
  3. Secondly, introducing the image analyzing technology with reference to the disadvantages of the traditional ferr - graph analysis technology, and with the combination of characteristic parameter optimizing filtration so as to raise a description method of debris micro - morphologic character. thirdly, with the application of mode recognition method, completing the process of debris auto - recognition based on the collected information of the debris configuration characteristics ; and conducting the diagnosis on the aero - engine wear faults according to the theory of particle tribology. fourthly, introducing information fusion technology to solve the problem that a single method can not collect enough fault premonitory information to conduct the wear fault diagnosis, hence to conduct the research and exploration in the field of comprehensive diagnosis on the aero - engine ' s multi - fault premonitory information

    本文的研究工作主要包括以下五個部分：首先，介紹航空發動機常見的磨損故障類型，研究磨損故障的失效機理，分析磨粒的產生機理、分類以及形態特徵：其次，針對傳統鐵譜分析技術的缺點，引入圖像分析技術，再結合特徵參數優化篩選，形成基於圖像的磨粒顯微形態學特徵描述方法：然後，基於提取到的磨粒形態特徵信息，應用模式識別方法完成磨粒自動識別，並根據顆粒摩擦學的基本原理進行航空發動機磨損故障的診斷與定位：再后，鑒于單一方法不能提取足夠的故障徵兆信息進行磨損故障診斷，本文引入信息融合技術，開展航空發動機多故障徵兆信息綜合診斷方法的研究與探索；最後，基於航空發動機滑油光譜分析與鐵譜分析數據，應用時序模型、灰色模型以及組合模型進行磨損故障的預測方法研究。
  4. Nonlinear model based predictive control ( nmpc ) not only is a valuable approach for solving practical control problems, but also is the frontier of nonlinear control theory. the perceptible successes of mpc strategies can be attributed to several factors including its inherent ability to handle input and output constraints, time delay and incorporation of an explicit model of the plant into the optimization problem. this dissertation discusses two kinds of nonlinearity ( or nonlinear system )

    本文沿著理論研究與工程實際相結合的設計思路，較為系統和全面的研究了非線性模型預測控制理論，提出改進新演算法；探討了非線性模型預測控制理論在自主水下航行器控制系統設計中的應用，豐富和發展了模型預測控制理論，本論文的主要工作及意義有以下幾個方面： 1 ）從工程應用的角度研究有限域無終端約束廣義預測控制穩定性充分條件，為有約束廣義預測控制穩定性研究奠定了基礎。
  5. The unscented kalman filter is used to estimate the probe position, velocity and un - model acceleration, which improves the orbit estimation accuracy and ensures the stability of navigation algorithm

    數學模擬結果表明，提出的導航方法是可行的，能夠滿足月球探測器奔月與繞月軌道段導航精度的要求。
  6. With the supports of lunar exploration pre - research program “ lunar soft landing integrative simulation and validation technique ”, this dissertation performed deep and systemic study on lunar explorer autonomous navigation and control issues. the main contents of this dissertation are as follows

    本文結合月球探測工程二三期預研項目「月球軟著陸綜合模擬演示驗證技術」 ，對月球探測器的自主導航與控制方法進行了較深入的研究。
  7. The result shows that the solar radiation pressure moments play a mainly part. based on kalman filtering, three kinds of attitude determination algorithms were studied using the attitude sensor now available on the explorer : the first based on digital solar sensor ( dss ) and gyroscope when the star sensor is not available ; another based on dss, high - gain antenna ( hga ) and gyroscope when the explorer is in the earth - safe mode ; the third based on star sensor combined with gyroscope when the explorer is in the normal mode

    針對配置了典型測量敏感器的深空探測器，基於擴展kalman濾波給出了其姿態確定的方法:針對星敏感器不可用情形，給出了使用太陽敏感器和速率陀螺定姿的濾波器演算法;針對安全模式下的對地穩定定向情形，給出了太陽敏感器和高增益天線融合速率陀螺信息的定姿演算法;針對正常巡航模式給出星敏感器和速率陀螺聯合定姿演算法。
  8. Displays of spacecraft, a working model of a mars rover, and an oversized character dressed in a nasa spacesuit, all impressed the students

    太空船的展示、火星探測車的活動模型與一個穿著航太總署太空衣巨型人物都讓這些學生印象深刻。
  9. The thesis consist of six chapters and based on the way of propose the question, analysis, then get the solution. it discussed and recognized what the ship transportation cost was in chapter one ; studied the environment and growing trend of the cost in chapter two ; fully discussed and demonstrated the voyage variable costs and controlling method, proposed a mathematic decision model of fuel supplying and get through the validation, proposed the concept of risking cost and addressing many controlling measures to it in chapter three ; discussed a certain running costs, proposed and validated a mathematic model of condition - based maintenance, and put forward many practical controlling method of running costs such as crew payment, repairs, spare parts, stores and lub oils in chapter four ; combining a case of monthly running cost budget and verification, performed a useful learning on running cost budget, forecast and verification in chapter five ; finally fully studied the method of cost - calculating and benefit - analyzing of time chartering container ships on a proposed route

    第一章主要討論並認清什麼是船舶運輸成本；第二章研究了船舶運輸成本的生存環境和生長趨勢；第三章詳細論述並論證了航次變動成本的控制措施，提出了燃油補給方案的決策模型並給出了模型的驗證過程，提出了航次風險成本的概念並論述了若干航次風險成本的控制措施；第四章對船舶營運成本中的船員費用、維修保養費用、備件、潤物料費用等幾個主要的可控性較高的成本進行了細致的分析並分別討論了相應的控制措施，提出了基於狀態維修決策的數學模型並論證了模型的正確性及具體解算步驟，對于備件、潤物料的控制堅持以科學的預算為前提，以申領、接收、使用、盤存為控制環節，切實做到理論與實踐的密切結合；第五章結合營運成本的預核算的案例，對船舶運輸營運成本的預算及核算進行了有益的探討；第六章結合具體案例對期租班輪的成本測算與效益分析方法進行了細致的研究。
  10. Based on the field - measured data and physical model test data, hydraulic elements of the shiwutan beach in hongshui river is analyzed, and factors of hydraulic elements variation and obstacles to navigation are discussed

    摘要根據實測及物理模型試驗資料，分析了紅水河十五灘灘段的水力要素變化，探討了灘段水力要素變化及產生礙航的原因。
  11. The research on flight plan conflict probe ( fpcp ) : in the phase of flight plan preparation, the planning controller of air force used to spend half time of each day to draw the routes on the maps and then probe the conflicts between them, for the flight routes are quite irregular and more possible to cause conflicts with other training flights or civil aviation flights. the fpcp model studied here is one of the innovation applied in mrd2k - jh, it can automatically probe all the potential conflicts between flight plans. this model uses 4 - d conflict probing rules to analyze all the route information of flight plans, the detected conflicts ( route points or segments ) can be useful for assisting the planning controller to amend the conflicted plans and re - probe the conflicts

    飛行計劃沖突預調配研究：針對軍航管制工作中飛行計劃機動多變造成飛行沖突多、沖突探測繁、手工調配難的情況，介紹了mrd2k ? jh系統中採用的一項創新之處? ?飛行計劃準備階段自動化的四維沖突探測模型，按照飛行安全間隔對各飛行計劃的所經航線數據進行潛在沖突分析，探測出預沖突航路點或沖突航線段，代替了軍航管制員原來在地圖上手工測畫的重復性勞動，該項功能幫助管制員及時發現飛行計劃之間存在的潛在沖突以方便進行調配再探測，不僅極大提高了工作效率，更避免了人為可能造成的失誤，確保了飛行的安全。
  12. The relation of tthe ccd sensor imaging resolution and the mtf is gotten. when the mtf of space remote sensing camera is higher and the contrast of object is higher, it can be believed that the resolution of ccd sensor imaging is 1. 6 times of the pixel dimension, in the mean while the mtf decreases 32 %

    通過模擬得到了ccd探測器的目標影像的分辨力與ccd像元尺寸的關系，當航天光學遙感相機的mtf較高（模擬中鏡頭的mtf = 1 ）且目標為高對比度時，得到ccd探測器的目標影像分辨力是其像元尺寸a的1 . 6倍，其光學調制度傳遞函數mtf下降32的結果。
  13. During this paper, definition of the measure enter - cover - probability is given, andthree - dimension detection space are transformed to level detection circles on differentheights. aiming at the most normal situation of symmetric line, cross - to line and cross - awayline taken by the carrier, probablely - enter - cover - target - distribution are analysed in relativemovement method on the premise that targets fly perpendicular to the flying direction of thecarrier. mont - cario method is used to simulate uniformly - distributed - targets situation and getthe measure, and results are used to analyse the influence of line - landscape - orientation - ratio, line - portrait - ratio, and speed - ratio on the measure. for further research, influences of height and blind space are also discussed on base ofradar level detection range, and situations of non - uniformly - distributed targets are alsoresearched

    為了分析主動探測空間動態性能，本文首先提出以「目標進入雷達覆蓋區概率」 （簡稱為「覆蓋率」 ）作為評價指標;然後將三維探測空間轉換為不同高度層對應的水平探測圓，針對載機採用雙平行航線、交叉相向航線和交叉同向航線的最一般情形，採用相對運動的方法，分析目標垂直入侵時可能進入雷達覆蓋區的目標分佈情況;再運用蒙特卡洛法進行模擬計算，分析並比較目標服從均勻分佈時航線橫比、航線縱比及速度比對性能的影響。
  14. The main contents of this dissertation consisted of the following parts : the dynamics mathematic model for the deep space explorer is building up. the compositions and features of environmental torques were analyzed during interplanetary cruise period

    主要工作包括:建立了深空探測器的動力學模型，針對其星際巡航段分析了其環境干擾力矩的組成和特性，得出太陽光壓力矩是其主要干擾力矩的結論。
  15. Based on the analysis of the definition and the study of the estimation methods, the fighter ' s combat effectiveness model, in which the parameters of maneuver, cannon, missile, detector and others are considered, is established. the model has been tested with the existing aircrafts. it is shown that it is available and accurate enough for engineering practice

    在分析和研究作戰效能定義、作戰效能評估方法的基礎上，建立了能反映飛機機動性、火力、目標探測能力、電子戰能力、操縱效能、生存力、航程、突防能力、遠程武器能力、導航能力、載彈量等因素對飛機作戰效能影響的作戰效能計算模型。
  16. Secondly, the author introduced the theory of conflicts detecting and the conflicts detecting algorithm which based on the theory

    接著介紹了沖突探測的理論模型，並在此基礎上提出了航班時刻優化應用中的沖突探測演算法。
  17. 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。
  18. 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。
  19. Finally, based on the observability analysis and error analysis, two autonomous navigation schemes for encounter phase are respectively proposed in detail. monte carlo simulations are done for the two schemes. by analyzing and comparing the simulation results, we can get the conclusion that, under the accuracy conditions provided by the instruments in existence, the position estimation accuracy for probe encountering object celestial body is 0. 42km and 0. 04km, which demonstrate the feasibility of the two navigation schemes

    最後，在可觀性分析和誤差分析的基礎上，分別給出基於圖像測量的自主導航方法和基於視線方向及夾角測量的自主導航方法，並對這兩種方法進行蒙特卡羅數值模擬，通過對模擬結果的分析和比較，在現有儀器的測量精度下，探測器在與目標天體交會時刻的位置估計精度分別是0 . 42km和0 . 04km ，由此表明兩種自主導航方案都是可行的。
  20. Under the the image motion and the sampling discrete conditions, the other more important result is : under the condition of engineering practice, the orientation between the target strip and the pixel row is parallel or not, the difference amount of mtf is smaller then 1 %, therefore in the engineering, the mtf of the orientation parallel can instead of the mtf of the corresponding case

    Ccd探測器的動態成像過程的另一個重要結論是：在工程實際條件下，目標條帶與ccd探測器的像元行方向平行與否的兩種情況ccd探測器影像的基於模擬實驗及計算機模擬的ccd航天相機影像分辨力的研究mtf相差小於1 % ，因此工程應用中可以考慮採用方向平行時的mtf作為相應情況下的mtf值。
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