始航點 的英文怎麼說

中文拼音 [shǐhángdiǎn]
始航點 英文
departure point
  • 始 : Ⅰ名詞1 （最初; 起頭） beginning; start 2 （姓氏） a surname Ⅱ動詞（開始） start; begin Ⅲ副詞[書面...
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 航點 : waypoint
  1. The paper limits the range of the text which is wanted to be extracted in the teaching material of the civil aviation. by gathering many sentences which is used to describe the typical knowledge, the exploder team constructs the training set

    本文把待抽取的文本的范圍限定在民航領域的培訓教材，收集了民航領域培訓教材中描述知識點的典型句式的句子，構建出原始的語料庫即訓練集。
  2. From the beginning it appeared indistinct on maps, a tiny smudge not much bigger than a ladybug on a windshield, in the windward passage between haiti and jamaica

    從一開始，它在地圖上看來就若有似無，一個小污點，不比擋風玻璃上的瓢蟲大，位於海地到牙買加迎風的航線上。
  3. Abstract : bridge function and generalized bridge function are all three - valued function, and are made by initial sequence according as copied or shifted ways. they include some familiar orthogonal function of non - sine, such as walsh function. this paper briefly introduced some research advance on this subject, emphasized to introduce the copy theory and generalized copy method. the process of making ( generalized ) bridge function, its property and application, were introduced briefly

    文摘:橋函數和廣義橋函數均為三值函數系，都是將初始序列經復制方式和移位方式變換后而形成的.它們包括了一些常見的非正弦正交函數，如沃爾什函數和方波函數等.簡要介紹了近10年來北京航空航天大學通信與電子系統博士點在非正弦正交函數方面研究的一些新進展，重點介紹了復制理論和廣義復制方法，橋函數、廣義橋函數的復制生成方法、性質及其應用等專題
  4. The study work in the dissertation is an important part of the tenth five - year defence advanced research project of “ study on control technology of the machining distortion for complex structure parts ” supported by pla general armament department of china. theoretical analysis and experimental study are carried out on the initial residual stresses and their effects on milling distortion for thick aero - aluminum - alloy plate

    本文作為總裝備部「十五」預研項目「復雜結構件加工變形控制技術研究」的主要組成部分，以航空鋁合金厚板為對象，研究重點定位在其初始殘余應力分佈規律及其對數控銑削加工變形的影響。
  5. This indicated the international maritime community had shift the keynotes of the vessel ' s safe operation from maintaining strict technical standards to emphasizing management

    這標志著國際航運界開始將預防事故、保障船舶安全營運的重點由嚴格技術標準轉向加強管理。
  6. Finally, the algorithm model of six modules ( space - calibration, time - calibration, spot - track ' unite, track ' s origination and expiration, the form of tracking - door and association algorithm ) are founded. the effect of some modules to tracking result are studied and their intimated results are gained. the intimation result of centralized - system and distributed - system are compared in the end

    建立了空間校準、時間校準、點跡合併、航跡起始與終結、跟蹤門判斷和互聯演算法六個模塊的演算法模型；通過數字模擬，探討了某些模塊對跟蹤結果的影響並給出相應的模擬結果。
  7. The results showed that the open reading frame of chil - 15 cdna encompassed 564 base pairs ( bp ) and encoded a protein of 187 amino acids with three potential n - linked glycosylation sites, four conserved cysteine residues, two out - of - frame atg initiation codons in the 5 " untranslated region, and a signal peptide consisting of 66 amino acids. when it was compared with the published sequence of chil - 15 cdna, 7 mutant sites were found, and 5 amino acids were changed in predicted amino acids, which indicated that chil - 15 may be polymorphic

    結果顯示，本研究所用白來航雞il - 15cdna5 』非編碼區有兩個框外atg起始密碼子，開放閱讀框由564bp組成，編碼187個氨基酸，其中n末端信號肽含有66個氨基酸殘基，在第48 、 149和166位的天冬酰胺殘基上有三個潛在的n -糖基化位點。
  8. There must be a marine casualty happened every 4 days before 1984, the amount of marine casualty happened at this area corresponds to 1 / 7 amount of the whole changjiang " marine casualty, so mariners gave it a name as " mouth of tiger ". due to the specific geographical condition and the extremely representative vessel traffic management of changjiang yingongzhou channel section, many intelligent people began researching and practicing the vessel traffic management of this changjiang " s down - stream complicated channel section from 1980s, at dec 15th 1984 the authority at that time - changjiang yingongzhou channel section previously ; up to the last years of 1980s ministry management administration applied traffic control on changjiang yingongzhou channel section previously, up to the last years of 1980s ministry of communications assigned shanghai marine college, shanghai ship & shipping research institute and changjiang harbor superintendence administration to make feasibility demonstrate about modern vts of zhenjiang traffic control section ; in 1990 dasha radar station which is the first radar vts station with inner river was finished, groped a new way for applying modern radar traffic control of vessel traffic management ; in 1997 the vtms of changjiang " s down - stream from nanjing to liuhekou was completed with connecting net and came into operation formally, meanwhile the signals of dasha radar station were conveyed to vts center by light cable, and then united applying vessel traffic management upon the whole authorized area ; in jun 2001 jiangsu msa made changjiang yingongzhou channel section as the first experimental group of creating " civilized, safe, passable channel activity, updating dasha radar antenna and receive - transmitter building closed - circuit television monitor system, setting uo safety warning board, starting navigational route reformation, carrying out united construction

    1984以前這里平均每四天就發生一起海損事故，事故數占整個長江的1 7 ，被行船人稱為「老虎口」 。長江尹公洲航段緣其極為特殊的地理區位條件和極具代表性的船舶交通管理，從上個世紀八十年代初就有識之士開始了這個長江下游最復雜航段的船舶交通管理探索和實踐。 1984年11月15日當時的長江航政管理局在長江尹公洲水域率先施行交通管制；到八十年代末交通部委託上海海運學院、上海船舶研究所和長江港監局聯合開展鎮江交通管制段建立現代化交管系統的可行性論證； 1990年大沙雷達站? ?內河第一座雷達交管站建成，摸索實施現代化雷達交管的船舶交通管理新途徑； 1997年長江下游南京至瀏河口船舶交通管理系統建成聯網投入正式運行，同時將大沙交管雷達信號通過光纜傳輸至交管中心，統一實施全轄區船舶交通管理； 2001年6月江蘇海事局將長江尹公洲航段作為第一批創建「文明平安暢通航段」活動試點航段，更新大沙雷達天線和收發機，著手閉路工業電視監控系統建設，設立安全警示牌，啟動航路改革，開展聯合「共建」 。
  9. The algorithm features full utilization of different installation positions and different angular resolutions of the two lrfs by assigning different tasks to them. the top lrf was used to set up the initial trace of new obstacles recognized from the result of d - s evidence theory based multi - period data fusion and the bottom one was used to maintain tracking of obstacles, providing relatively accurate positions of the obstacles

    該演算法的特點在於充分利用了兩個激光測距雷達的不同安裝位置、不同解析度對障礙檢測造成的有利條件，將多目標跟蹤的理論和技術融入障礙檢測的軟體框架中，並結合d - s證據理論融合多測量周期的識別結果，由頂雷達建立障礙的初始航跡，而底雷達進行航跡的跟蹤和維持。
  10. In today ' s world shipping market, port, as an important link - point of international logistic net, has become the hinge of multi - transportation and modern logistic. nowadays, most of the containers going through continental bridge go in / out of china at lianyungang. under such a background that south - eastern asian economy is going out of shadow and beginning to recover while the middle asian economy is becoming stronger, the container volume which goes in and out china through lianyungang port will certainly increase year by year

    在當今的世界航運市場上，港口作為國際物流網路的一個重要節點，已成為綜合運輸和現代物流的樞紐，目前在我國大陸橋過境的集裝箱絕大部分是經連雲港港進出的，在東南亞國家經濟走出陰影並開始復甦、中亞地區國家經濟出現較好增長的形勢下，連雲港港的過境集裝箱箱量也將會逐年增加，現有的碼頭基礎設施與連年增加的集裝箱貨運量之間的矛盾將會日益加劇，盡快新建和擴建碼頭的基礎設施，提高連雲港港的碼頭通過能力就成了連雲港港港口建設的當務之急。
  11. Thirdly, the theory of single radar multi - target tracking ( kalman filter algorithm, dynamic target model, track ' s origination and expiration, the form of tracking - door and association algorithm ) is dicussed, which is turned the basis of multi - radar centralized - system ' s tracking algorithm

    對單雷達的多目標跟蹤理論（卡爾曼濾波、機動目標模型、航跡起始與終結、跟蹤門的形成和互聯演算法）進行了系統的研究，以此作為點跡處理之後集中式多雷達系統跟蹤技術的基礎。
  12. On air photographs, fault indications have one common property: they are always straight, or slightly curved.

    在航空相片上，斷層標志有一個共同的特點，就是它們始終是平直的或輕微彎曲的。
  13. In order to, meet the challenges from knowledge econ omy ， shipping companies ， as the third pa rty logistics for industrial and commerc ial enterprises ， are no w turning their focus of competition fro m price to service and providing the va lue - added logistics service with condens ed t ime and place

    為迎接知識經濟的挑戰，航運業作為工商企業第三方航運物流提供者，其競爭焦點開始從價格轉向服務，為客戶提供壓縮時間空間的物流增值服務。
  14. Chapter 3 concentrates on the important technology of pd radar ' s data processing. this chapter includes the resolution of range and velocity ambiguity and the theory of the start of tracking, the refreshment of tracking, the disappearing of tracking and the single target tracking. in the part of the refreshment of the tracking, the, the theory and realizing of the filtering algorithm and the point ? tracking relating are illustrated

    第三章重點敘述了脈沖多普勒雷達數據處理的關鍵技術，包括數據錄取時距離和速度的解模糊； pd雷達工作在搜索狀態下目標航跡的起始，航跡的更新，航跡的消失，以及目標的編批和最優先級目標的判斷，其中航跡更新中主要講述了跟蹤濾波和點跡?航跡關聯的原理及實現； pd雷達工作在跟蹤狀態下的單目標跟蹤原理。
  15. 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。
  16. From first - class passenger george graham, it describes how the titanic almost collided with another liner - the new york - as it embarked on its voyage from southampton

    這封來自頭等艙乘客喬治?格雷厄姆的書信描述了泰坦尼克號從南安普敦出發開始航行時，差點和另一艘游輪「紐約號」發生碰撞的情況。
  17. A deckchair could fetch, 000, while a letter on titanic stationery has an estimate of, 000. from first - class passenger george graham, it describes how the titanic almost collided with another liner - the new york - as it embarked on its voyage from southampton

    這封來自頭等艙乘客喬治格雷厄姆的書信描述了泰坦尼克號從南安普敦出發開始航行時，差點和另一艘游輪「紐約號」發生碰撞的情況。
  18. Firstly, this paper describes the mostly track initiation methods for engineering usage. for the sequence track initiation algorithms can ’ t be used under complex circumstance, and batch processing methods ’ computation burden is too large to carry out, a new algorithm based on “ one step delay ” model is presented, which adopts the adapted multiple hypothesis algorithm for data association, in order to be suit for the complex circumstance, multi - stage filtering is added in. simulation results show that the algorithm which is used in this paper is easy for implementation, the ratio of correct track initiation is high, and the foreground of this algorithm ’ s engineering application is better too

    本文首先從工程角度出發，研究了現存的主要航跡起始演算法，針對順序起始方法無法用於復雜環境，批處理方法計算量大不利於實現的缺點，提出了基於一步延時的航跡起始演算法，該演算法採用改進的多假設演算法處理數據關聯，同時採用多重濾波以更好的適應復雜環境，模擬結果表明，本文使用的演算法簡單易於實現、正確航跡起始概率高，有很好的工程應用前景。
  19. Because the ins error equation is unstable, some initial states error will cause error floating and error accumulating, if the filter observations were only position error, kalman filter will converge very slowly, and some states error ( such as yaw error ) will be great. since the milemeter altimeter and piloting could only output position information, this paper put forward a method, firstly estimateing states and then kalman filtering, to improve filtering effect. simulation proved that this method could effectively reduce the system states error, quicken filtering convergence and improve filtering precision

    由於慣導系統（ lsins ）的誤差方程是發散的，某些初始狀態的誤差會引起誤差的漂移和積累，當觀測量只有位置誤差時，卡爾曼濾波的收斂速度很慢，某些狀態（如方位角）誤差很大，而以上除慣導外的其它導航傳感器直接提供的只是位置信息，為了改善濾波器性能，本文根據里程計等傳感器的特點，提出了首先對狀態做出估計，然後在狀態估計的基礎上，進行卡爾曼濾波的方法。
  20. This thesis introduces the key technique of the us military distributed information system, with focuses on algorithms about related navigation of military tactics. kalman filtering combined with least square method is proposed for the current military development stage. the method of observation result including velocity component minimizes the convergence time, improves the positioning precision and acquired satisfied experiment results, which makes the pla independence of the us high - tech equipments

    本文簡要介紹了現階段美軍在戰術信息分佈系統實現中所採用的關鍵技術，重點對戰術飛機相對導航的各種實現演算法進行了深入探討，針對我軍當前在該系統領域中的技術現狀，提出了以最小二乘法輔助卡爾曼濾波，濾波過程中觀測量加入速度分量的方法，縮短了導航濾波起始階段的收斂時間，提高了定位精度，在工程上取得了較理想的實驗數據，在一定程度上擺脫了我軍在相對導航領域對美軍先進技術裝備的依賴。
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