時間軌跡 的英文怎麼說

中文拼音 [shíjiānguǐjī]
時間軌跡 英文
time locus
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 軌 : Ⅰ名詞1. （路軌;軌道） rail; track 2. （比喻辦法、規矩、秩序等） rut; path; course Ⅱ動詞[書面語] （遵循; 依循） follow
  • 跡 : 名詞1 （留下的印子; 痕跡） mark; trace 2 （前人遺留的建築或器物等） remains; ruins; vestige 3 （...
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 軌跡 : 1 [數學] （某點在空間移動的路線） locus; trajectory; trail; travel; path; way; [電子學] trace; li...
  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. The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained

    本文將近地共面軌道內運動的兩飛行器非線性追逃模型簡化為線性模型，以捕獲半徑的圓域定為目標集，確定目標集邊界上的可用部分，並以此為各狀態變量的起點，對時間進行倒向積分，求得線性方程組的解析解，從而確定了該追逃模型的線性界柵，以及界柵上對策雙方的最優推力，即求得了滿足最優策略時相對運動的軌跡和推力。
  3. The former put stress on the research of time optimal control method, fuzzy discursion and moving track, and the latter on the study of ekf recursion algorithms, noise model and noise characteristic identification

    前者的重點是最優時間控制方法、模糊控制器的推理以及運動相軌跡分析；後者側重於ekf的狀態估計方法、噪聲模型對濾波估計性能的影響以及噪聲模型的辯識方法。
  4. Some message described in the thesis, such as the basic structure of gps - oem, the consists of positioning system, the binary format of almanac and ephemeris, the method and the skill of processing orignal data through singlechip, and so on, is very useful for studying gps and its applications in integrated navigation, and re - development on gps - oem

    同時亦可與gis （地理信息系統）配套使用，實現在crt上地圖背景下的運動軌跡顯示。第二個產品， gps時鐘/同步系統，利用全球衛星定位gps衛星的標準utc時間，可在全球得到同步的準確時間。設備採用motorola的12通道gpsoem接收機。
  5. In the research, a set of simulation equipment is developed to examine the drivers " static and dynamic fatigue. recur to the apparatus, contrast and control experiment are made among different ages, workload intension and workload factors group. the endings summarize as following : ( 1 ) driving sensation fatigue investigation ( investigation of psychological and physiologic index and contrast investigation of fatigue ) ; continuous driving load and discrete driving load investigation of fatigue

    ? ?門）駕駛疲勞平衡穩定性是通過在力檢測臺上描繪人體重心軌跡的方法，提出檢測駕駛員疲勞平衡穩定指數，在不同狀態下（傾斜度15 30 『以及閉目等狀態下）對不同負荷、不同年齡分別進行測試，建立駕駛疲勞客觀測試評價體系； n ）經實驗室研究與現場調查，通過對駕駛疲勞與駕駛時間、駕駛速度等關系的研究，提出了不同年齡、不同條件下的最大連續安全駕駛時間標準，日駕駛時間標準，最大安全行車速度標準等。
  6. Catalog of holdings in the art and architecture collection, including acquisitions from the original astor, tilden and lenox collections, architectural source books, an antiquarian - based collection of portfolio and plate - books, and early design periodicals

    藉由人之存在，在時間的軌跡中，結合藝術舉凡雕塑繪畫書法陶藝花藝甚或音樂給空間一個結構美感無法呈現的驚蟄。
  7. In this paper, the problem of calculating movement of piece is simplified to the problem of finding track line segments between vertices and edges, hence the time complexity is much reduced, and special cases such as inner cavity and inner nfp ( no fit polygon ) can also be tackled

    摘要將多邊形滑動碰撞問題轉化為頂點和邊之間的軌跡線提取問題，從而降低了時間復雜度，並可統一處理邊界空腔和內部靠接臨界多邊形問題。
  8. A motion planning method for visual servo redundant robots based on the vector analysis

    基於超冗餘度機械臂動力學的時間最優軌跡規劃
  9. Observation of the on - off sequencing of characteristic spectral lines from tracer materials arranged in layers in, or surface patterns on, planar or spherical targets can provide a record of radial or lateral energy transport processes in laser - generated plasmas

    測量激光聚變靶產生的軟x射線時間變化連續譜的形狀，可以知道許多x射線產生過程的詳細動態記錄，這有助於理解實驗的熱學條件。觀察軌跡特徵譜線的閉合序列，能提供關于激光等離子體激發能量和滯后能量的傳輸過程記錄。
  10. The system realizes multiple serial port communication and management by way of multi - port serial board ( 2 ) use the database technology to manage and manipulate the physics information data of nc tool. the basic information management system, the nc program auto - create system, the simulation of cutter working and dnc communication program are integrated to one system. it realizes the offline programming and controls of no - punched tape, helps to cut short the supplementary cutting time and improves the efficiency of to program and machine tools and realizes the separation and seamless connection of program and manufacture

    本課題以硬體為輔助手段，以軟體為主要手段實現了以下功能：以串口擴展卡來實現網路中多臺數控機床的通信和管理；使用數據庫技術對數控機床的物理信息進行管理和操作，將數控機床基礎信息管理系統、 nc程序自動生成模塊、刀具加工軌跡模擬模塊和dnc通信介面模塊集成為一體，實現了數控加工的離線編程和數控系統的無帶控制，提高了編程效率、質量，縮短加工輔助時間，提高了機床的效率，既實現了編程和加工的分離，又達到它們之間的無縫連接。
  11. The vision sensor is fixed on the end - effector of the robot. when the robot makes a linear movement along the " v " measurement track, the linear light from the laser electropult on the sensor is projected on the track to shape laser strip with three turning dots and imaged in ccd camera. the relation between the sensor coordinate and the measurement track coordinate can be computed by image processing and pose measuring, which indirectly describes the characteristic of the robot ' s linear trajectory

    該系統利用結構光幾何成像原理和視覺圖像處理技術，將視覺傳感器固定在機器人末端，當機器人沿「 v 」形測量軌道做直線運動時，傳感器上的激光發射裝置發出的線狀光源投射在測量軌道上，形成具有三個拐點的激光條，並在ccd攝像機中成像，通過圖像處理技術和位姿測量技術，得到傳感器坐標系相對于測量軌道坐標系的位姿關系，從而間接描述機器人的直線軌跡特性。
  12. With the experiment part, the errors of sk - 21 nc machine tool have been measured, and a serial of data is gotten which lead to the error discrimination. ( 3 ) based on the kinematical theory of mbs, the calculation methods for the ideal center envelop curve of grinding wheel on cam grinding, the practical cutter track, inverse contour of cam, ideal nc instructions, precision nc instructions, the inner / outer normal and the fitting criterion of curve have been all discussed in detail in this paper

    （ 3 ）通過精密加工的約束條件方程，探討理想刀具路線、逆變數控指令與實際刀具軌跡之間的映射關系，解決誤差補償技術提高加工精度的核心問題? ?當要求數控磨床的砂輪中心準確到達給定的理想點時，精密數控指令值究竟該是多少，如何能夠通過計算，獲得這樣的數控指令值，給出經修正的數控指令計算方法。
  13. The " length of track calculation " section of the dialog allows you to choose the length of the displayed ground track ; you can either display a track for a single orbit of the object, or you can manually enter the length of the track, and the interval at which positions are to be calculated

    「軌道計算的長度」用於選擇需要顯示的地面軌跡的長度；你可以選擇繞地一周的地面軌跡，也可以通過輸入相應的軌道長度來顯示在一個時間段內的軌道地面軌跡。
  14. 2 lin b, su j. shapes based trajectory queries for moving objects. in proc

    本文同時考慮軌跡的時間與空間屬性，而忽略它們的運動形狀。
  15. Then, the minimum - time trajectory planning ( mttp ) for single manipulator is investigated. mttp with dynamic model constrains is presented in detail. then a algorithm of dynamic searching time - optimal trajectory based on phase - plane techniques is proposed and simulated

    其次，研究了沿指定路徑單臂最優時間軌跡規劃，先詳細介紹考慮動力學模型的最小時間軌跡精確解法，然後提出了一種基於相平面動態搜索時間近似最優軌跡的方法，並將該演算法進行了模擬實驗。
  16. Trajectory tracking control of mobile robots in finite time

    移動小車的有限時間軌跡跟蹤控制
  17. Then the locus curves of one point in the geared five - bar were studied with the change of the gear ratio, the phase angle, the bar length and the angle between two bars

    然後，針對能夠整周轉動的齒輪?五桿機構，研究了其上的一點在齒輪機構的傳動比、初始相位角、桿長以及兩桿之間的夾角變化時的軌跡曲線以及速度和加速度曲線的情況。
  18. Lastly, the minimum time trajectory planning for two manipulator with specified path is investigated. a algorithm of mttp using phase - plane techniques is presented, which is based on parameterized dynamics equations

    最後，研究沿指定路徑雙臂機器人的最小時間軌跡規劃（ mtt ） ，基於路徑參數描述的動力學方程，運用相平面技巧，介紹了一種mllp演算法。
  19. Because there are several parameters to control the locus curves, we particularly presented the locus curves in the case that only one parameter change while others remain. finally, we concluded the law of geared five - bar ' s parameter to effect orbit curves. this is very helpful to design geared five - bar ' s parameters using locus curves

    由於齒輪?五桿機構軌跡圖像的可控參數比較多，我們就詳細的討論了在只有一個參數改變時機構的軌跡圖像變化情況，然後總結了齒輪?五桿機構在齒輪的傳動比、初始相位角、桿長以及兩桿之間的夾角變化時的軌跡曲線的變化規律。
  20. The finite - time trajectory tracking control problem of a nonholonomic mobile robot is discussed

    摘要對非完整移動機器人的有限時間軌跡跟蹤控制問題進行討論。
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