估算彈道 的英文怎麼說
中文拼音 [gūsuàndàndào]
估算彈道
英文
estimated trajectory-
The results of test demostrate both estimation and accuracy of solving model achieved satisfactory degree, so that the ballistic trajectory problem can be solved without the firing table
測試結果表明，彈道綜合系數的估計比較準確，而解算模型在精度與實時性上均達到滿意的程度，具有高度通用化的特點，並且使彈道問題的解算可以完全脫離射表進行。Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。On the basis of solving ballistic equation in real - time, the authors solved the unified calculation problem of non - flat trajectory comprehensive coefficient under the condition of strong constraint, found the estimating method of flat trajectory comprehensive coefficient, carried out the generalized design of solving trajectory model in real - time, and given a program flawchart
摘要根據基於彈道方程的實時解算演算法，解決了強約束條件下非低伸彈種彈道綜合系數的統一計算問題，找出低伸彈種彈道綜合系數的估計方法，進行了彈道實時解算模型的通用化設計，給出了程序流程並進行了測試。Firstly, the mathematical method, wavelet transform of random error processing and kalman filtering algorithm of system error estimation, is designated ; the process of development of wavelet transform and its present research is recommended ; and, the definition and development situation of real - time data processing and post - flight data processing of trajectory measurement data is summarized briefly
首先指出了應用的數學方法，即處理隨機誤差的小波變換方法和估計系統誤差的kalman濾波演算法;介紹了小波變換方法的發展過程和國內外的研究現狀;綜述了彈道測量數據的實時數據處理和事後數據處理的概念和發展狀況。In this paper, detecting and surveillance process of ballistic missile with low satellite of sbirs is studied deeply
本文以天基紅外系統中的低軌道衛星為觀測平臺，針對低軌預警衛星對彈道導彈的跟蹤及彈道估計演算法展開深入研究。Further more, the solutions of this paper is benefit for the estimation of the characteristics of this new trajectory, such as maximum heating rate, load factor and dynamic pressure during the period of the project demonstration
研究結果可為新型助推滑翔式飛行器在方案論證階段時的彈道特性分析以及射程、峰值熱流和過載等特徵參數的估算提供依據。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。Research of the state and covariance estimation for ballistic missile and the way of tracking missile using early warning satellite is an important technology
預警衛星對彈道導彈的跟蹤與彈道參數估計演算法研究是彈道導彈預警系統的一項關鍵技術。Secondly, aiming at measurement being only from one satellite and the ekf being not stable, the measure equation is improved. transforming the form of angle measurements by the imaging theory, linearization of measure equation is realized by fake data of measurement. parameter of ballistic missile trajectory is estimated by using ekf, and the simulation shows that the unstabilization problem of ekf with true measurements is solved by using ekf with fake measurements
在僅有一顆預警衛星能夠觀測到目標的情況下，針對擴展卡爾曼濾波不穩定的問題，對觀測方程進行改進，利用光學成像系統的原理，將測量量進行變換，並利用新生成的偽測量量使測量方程線性化，再利用擴展卡爾曼濾波演算法對目標的彈道參數進行估計，最後，通過數學模擬來證明利用偽測量量的擴展卡爾曼濾波解決了單顆衛星觀測時利用真實測量量的擴展卡爾曼濾波不穩定的問題。A full - scale review of the nonmetal mineral filler to improve the strength and toughness of the resin matrix materials in the domestic and overseas is presented. based on the theory and experiment, the mechanism of the fsmf filler to build up the strength and toughness in the resin matrix composite materials is studied ; the relation of the mechanical property of the resin cast and the content of the fsmf is obtained ; the elasticity modulus of the fsmf powder is estimated by analysis method and cmm method ; in the end, fsmf used in rpmp is discussed
本文對非金屬礦物填料填充樹脂復合材料增強增韌的國內外研究現狀進行了較全面的評述；在理論和實驗的基礎上，研究了fsmf填充樹脂復合材料增強增韌機理；進行了fsmf填充樹脂澆鑄體的有關力學性能測試，獲得了fsmf填充樹脂澆鑄體的有關力學性能與fsmf含量的關系；利用解析法和cmm法，估算了fsmf粉體的彈性模量；最後探討了fsmf在玻璃鋼夾砂管道中的應用。In this dissertation, missile ’ s states in the boost phase and trajectory parameters estimate algorithms are studied by using angles of arrival measurement from space - based infrared sensor, and the availability and precision is validated through simulation
本文主要利用地球同步軌道的預警衛星敏感器探測的目標視線角測量，對導彈主動段運動狀態和彈道參數估計演算法進行了研究，並通過模擬驗證了方法的有效性和可行性。分享友人