point observation method 中文意思是什麼

point observation method 解釋
定點觀察法
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • observation : n 1 觀察，注意；觀察力；?望。2 觀測，實測；【航海】測天；【軍事】觀測，監視，偵察。3 （觀察得的）...
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. 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
  2. Based on this observation, we develop a newton - filter method in such a way that at each step, the method generates a point such that either the objective function value or its gradient descreases sufficiently

    此時，常用的線性搜索（如armijo搜索和wolfe搜索等）可能失敗。另一方面，不管目標函數的hessian陣是否正定， newton方向一定是目標函數的梯度的模函數的下降方向。
  3. The main contents are as follows : 1 ) 3 eliminate error criterion method and step wise regression analysis method is used to analyze the errors of observation date. in the stepwise regression analysis, aging, loading and temperature which bulkily affects the dam ' s vertical deformation are selected as the regression factors, then regression equation and curve of each point are worked out

    運用3準則剔除誤差法和逐步回歸分析法對茅坪壩的觀測資料進行誤差分析，在逐步回歸分析中，選用對壩體豎向變形影響較大的時效、施工加載和溫度作為回歸因子，求出各測點的回歸方程和擬合曲線。
  4. Aiming at the shortcomings of the routine inverse analysis methods which only utilize the data of single - survey - point and single - direction, a new method is brought forward in which the deformation observation data of multiple - point and multiple - direction are made use of the inverse analysis

    針對利用單測點單方向位移資料進行反演的不足，提出用多測點多方向位移資料進行反演的方法。
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