trajectory information 中文意思是什麼

trajectory information 解釋
彈道數據
  • trajectory : n （拋射體的）軌道，彈道；流軌；【幾】軌線。 a curved [direct fire flat highangle fire low] traje...
  • information : n. 1. 通知，通報，報告。2. 報導，消息，情報。3. 資料，知識，學識。4. 【自動化】信息，數據。5. 【法律】起訴，告發。adj. -al
  1. Motivated by this observation, this paper studies the problem of efficiently processing k nn k - ge 1 search on r - tree - like structures storing historical information about moving object trajectories. two algorithms are developed based on best - first traversal paradigm, called bfp k nn and bft k nn, which handle the k nn retrieval with respect to the static query point and the moving query trajectory, respectively. both algorithms minimize the number of node access, that is, they perform a single access only to those qualifying nodes that may contain the final result

    例如，若已知動物的軌跡，則動物學家可能提出如下兩種查詢： i在時間區間ti ， tj內找到離一個給定的靜態點譬如食物源實驗室等最近的k條動物軌跡ii在時間區間ti ， tj內找到離一條預先指定的動物軌跡最近的k條動物軌跡。
  2. In preflight planning phase, the optimal global trajectory and its safe corridor can be found via synthesizing many kinds of information by large - scale computers on earth

    在離線航跡規劃階段，最優全局航跡規劃和安全走廊可以通過綜合地面計算機的大范圍多種信息的方法來獲得。
  3. As far as the system observation for accuracy evaluation of carrier rocket is concerned, there may exist different types of observed data and priors. heterogeneous information means that the different information describing the different characteristics of the same object. since all of the information is relevant to the same object, the fusion is possible. it is a key problem that how to fuse the heterogeneous information to obtain the better evaluation result. therefore, the different heterogeneous information and data is thoroughly studied, moreover, the mathematical description for information fusion of different parameter priors and data is constructed in this paper. based on their relationship between different parameters, indirect prior and observation data is transformed into prior in impact point observation space, which is fused with original prior by weight determined by maximum entropy rule to obtain the mixed posterior distribution. therefore, the test results can be given by combining posterior distribution and impact error observed data. then its application on evaluating guidance systematic error is elaborated as it applies trajectory tracking data, test value of coefficients of guidance instrumentation systematic error, impact point observation data and prior. especially, the advantage of this method lies in its application in case that guidance instrumentation systematic error may not be computed precisely. finally a detailed example on evaluation of carrier rocket is given to verify the theory

    為充分利用運載火箭觀測中的不同觀測空間和過程的信息來進行精度評估，針對該背景建立了異質先驗融合的數學描述.研究了飛行試驗中不同觀測空間和過程的異質先驗信息和數據，基於不同觀測過程的解析關系，將間接過程的先驗和觀測數據算出的后驗分佈轉換成落點觀測空間上的先驗，與原落點的先驗進行了最大熵加權融合，得到混合后驗分佈，從而結合落點觀測數據給出評定結果.在無法解算出精確的制導工具誤差系數的情況下，這種方法充分利用了彈道跟蹤數據、工具誤差系數的地面測試先驗值、落點先驗及落點數據，穩健性更好，準確性更高
  4. In order to reduce the testing number, using various prior information has become indispensable, especially for the information of simulation and the special trajectory

    由於試驗數的減少，對各類驗前信息的利用已勢在必行，尤其是對模擬信息、特殊彈道信息的融合運用。
  5. Iterative learning control ( ilc ) is a technique for improving the transient response performance of systems or processes that operate repetitively over a fixed time interval. it refines the next control input using the information such as current control input and error signals after each trial until the specified desired trajectory is followed to a high precision

    迭代學習控制針對具有重復運行性質的被控對象，利用對象以前運行的信息，通過迭代的方式修正控制信號，實現在有限時間區間上的完全跟蹤任務。
  6. Tb _ ppf - index is able to support trajectory based queries about the historical information of moving objects. first, the historical trajectories of moving objects are indexed by tb - tree after trajectory splitting. a buffer containing the latest trajectory segment is maintained for each moving object to support trajectory splitting

    在tb _ ppf - index中，移動對象歷史軌跡信息經過軌跡切分后利用tb - tree進行索引，在軌跡切分過程中為每一個移動對象維護一個緩沖區buffer以保存最近一段時間的部分軌跡。
  7. With earth - moon transfer trajectory taken into account, this paper gives the deep space autonomous optical navigation algorithm based on the information of earth - moon

    論文的主要研究內容包括:針對奔月軌道段任務，給出了基於地月信息的自主光學導航方法。
  8. The estimate algorithm of missile ’ s states and trajectory ’ s parameters by early warning satellite is a key technology of information processing

    利用預警衛星對彈道導彈的狀態估計與彈道參數估計的演算法研究是導彈預警信息處理的一項關鍵技術。
  9. The optical - electronic measurement and control system is a main part of missile and space measurement and control system. it can get the information, trajectory parameter and characteristic parameter of the target by optical principle

    光電測控系統主要指以光學原理採集飛行目標信息，經處理得到所需彈道參數與目標特性參數，並獲取飛行實況圖像資料的專用測控系統，是導彈、航天測控體系的重要組成部分。
  10. In the field of mechatronics control such as robot control, machine tool control and so on. lots of future information can be used. therefore in order to improve the precision of trajectory control system and enhance robustness of a system, the optimal preview control can be adopted

    在機器人、機床等機電控制領域中，可以利用未來目標值等未來信息的情況，採用最優預見控制來提高系統軌跡跟蹤控制的精度，增強系統的魯棒性。
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